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Paconia creek below canyon, Los Angeles Co., Calif 725-A-b-1 1915 February
San Antonio Wash, Calif 725-A-b-2 undated
San Antonio Wash, Calif., below Canyon 725-A-b-3 undated
San Antonio Wash, Calif 725-A-b-4 1900
Snow on mountains and gravels below San Antonio Canon, near Pomona, Cal. where flood waters are stored in gravels for pumping 725-A-b-5 undated
Flood in San Antonio Wash below canyon and winter snow on mountains 725-A-b-6 undated
Flood at mouth of San Antonio Canyon 725-A-b-7 undated
(a) Diversion wall in Cucomonga wash. N.E. of Claremont, Calif. Flood control in the coastal basin of So. California (b) Control works, water spreading project in Cucomonga wash, n.e. of Claremont 725-B-1 1932 May
Diversion structure, water spreading project, Cucomonga wash, N.E. of Claremont, California 725-B-2 1932 May
Diversion wall in Cucamonga wash 725-B-3 1932 May
Tri-county water spreading works, South Coastal Plains project, California (See also 725-13) 725-B-4 1935 May
Tri-county water spreading works, South Coastal Plains project, California. (See 725-12) 725-B-5 1935 May
Spreading flood water from San Antonio Wash for storage in the gravels 725-B-6 undated
See - 700-M-f-77 C.V. Givan measuring flow of water in Putah Creek, 1931. 700-M-z-1 Measuring depth of water in hole below Stevenson's bridge, Putah Creek, 1931 undated
View of Slichter apparatus installed near headquarters of Reclamation District 999. This was used for measuring underground water flow. (see 775- 26) 725 1925
Device used by Major Stout to measure loss of head of ground water passing through sand. See 775-31 725 1926
Caterpillar Tractor Co., Peoria, Ill 730-A 1934 December 27
Pumping Plant for Berries and Vines, Florin, Cal 730-A-2 1915 September 18
Pumping Plant and Irrigation Flume, Pajaro Valley, Cal 730-A-3 1915 August 30
Sasao's Pumping Plant for the Irrigation of Strawberries and Fruit Trees, Sunnyvale, California 730-A-5 1915 January 18
Pumping Plant of the Sacramento Valley Irrigation Co., above Hamilton City, Cal 730-A-6 1915 August 19
Pumping Plant of the Lockwood Irrigation District on Yellowstone River, Montana 730-A-8 1916 November 28
Pumping Plant, Lockwood Irrigation District, Montana 730-A-9 1916 November 28
Pumping Plant of the Snipes Mountain Irrigation District, Yakima Valley, Washington 730-A-12 1916 November 17
Smaller Pumping Plant, Gem Irrigation District, Idaho 730-A-13 1916 December 30
Intake of the Smaller Pumping Plant of the Gem Irrigation District, on Snake River, Idaho 730-A-15 1916 December 30
Pumping Plants of Hayden Lake and Avondale Irrigation Districts, on Hayden Lake, Idaho 730-A-16 1916 November 22
Pumping Plant Belonging to the Mills Orchard Company, West of Maxwell, California 730-A-19 undated
Pumping Plant in Santa Clara Valley, California 730-A-20 1916 August
Section of Covina Ditch, California 730-A-21 undated
Pumping Station, Reclamation District No. 1500. Sutter Basin, July, 1917 730-A-24 1917 August
Evans Pumping Plant, Rice Duty of Water Investigations in Sacramento Valley, 1917 730-A-25 1917 August 8
Pumping Station Reclamation District No. 108, North of Knights Landing California, 1917 730-A-27 1917 July
San Dimas Wash, Los Angeles County, below portion shown in Pict 730-A-28 1918 May
San Dimas Wash, Los Angeles County, near the mouth of the canyon 730-A-29 1918 May
Pumping plant in foothills near Exeter 730-A-31 undated
A small pumping plant in Santa Clara Valley 730-A-32 undated
Booster Pumping Plant delivering to rice fields near Dodge Land Company headquarters in Butte Co. - Fall, 1921 730-A-33 1921
Mutual Water Company pumping plant lifting water from Western Canal near headquarters of Dodge Land Co 730-A-34 1921 August
Pumping plant, intake side - Panoche Water Co 730-A-35 1922 August
Well Development in the Owens Valley, Fall of 1925 730-A-36 1925 Fall
Well development in Owens Valley in the Fall of 1925 730-A-37 1925
Well development in the Owens Valley in the Fall of 1925 730-A-38 1925
Well Development in the Owens Valley 730-A-39 1925
Well development in Owens Valley 730-A-40 1925
Well development in Owens Valley 730-A-41 1925
Well Development in Owens Valley 730-A-42 1925
Well development in Owens Valley 730-A-43 1925
Well development in Owens Valley 730-A-44 1925
Hansen Brothers Kimball pumping plant. Salinas Valley showing 75 foot stack used to reduce surge in pipe line 730-A-45 (No neg) 1925
Untitled 730-A-46 1929 August
Wilkins Slough Pumping Plant, Reclamation District 108, near Grimes, California. View No. 1 730-A-47 1930 October
Wilkins Slough Pumping Plant, Reclamation District 108, near Grimes, California. View no. 2 730-A-48 1930 October
Typical pump house, showing discharge pipe leading into 30" concrete stand pipe. J.E. Montgomery ranch near Davis, Calif 730-A-49 1931 June 19
Typical pump house showing discharge pipe leading directly into field ditch. J.E. Montgomery ranch near Davis, Calif 730-A-50 1931 June 19
Rear view of Reclamation District 108 drainage pumping plant showing suction pipes. On Sacramento River near Knights Landing 730-A-51 1930
Pump house made by the California Corrugated Culvert Co. installed in District 999 in the delta of the Sacramento-San Joaquin rivers 730-A-52 1929
Pumping plant on Straloch farm, west of Davis 730-A-53 1931 August
Pumping plant on Fred Hamel ranch, southeast of Davis 730-A-54 1931 August
Pump house at ranch of S.K. Baker heirs, Winters, Calif 730-A-55 1931 August
Typical structure over wood curb pit, pumping plant of Mrs. McCune ranch one mile south of Winters 730-A-56 1931 August
Electrical pumping plant at Birmingham ranch, northwest of Winters 730-A-57 1931 August
Galvanized iron cover over concrete pit. Pumping plant at Boyce and Boyce ranch, east of Winters 730-A-58 1931 August
Corrugated iron pump house and Bean turbine pump, Boyd ranch, west of Winters 730-A-59 1931 August
Banta Carbona Pumping Plant #1 730-A-60 1929
Old screw pump parts. Owens Valley trip February 1926 730-A-61 1925
Picnic Day exhibit 730-A-62 1924
Gasoline pumping plant of Harrision Findlay on Mark West Creek, 4 miles north of Santa Rosa 730-A-63 1916
Booster plant in the Terra Bella Irrigation District water system 730-A-64 1929
Pump house no. 90, Los Angeles Municipal Water District, Owens Valley 730-A-65 1926
Typical pumping plant (Kimball pump) 730-A-66 1925
Interior of regulating chamber, Stony Gorge Dam Orland project 730-A-67 (3 negs.) undated
Interior of regulating chamber. Stony Gorge Dam, Orland project 730-A-68 undated
Pumping plant. East Contra Cost Irrigation District 730-A-69 1929
Marsh well and pumping plant, Victor Valley, Calif 730-A-20 1917
L.J. Hampton well and pumping plant, Victor Valley, Calif 730-A-71 1917 January 31
Pumping station, Shasta View. (2 view) Orland project 730-A-72 1929 June 19
Pump for garden irrigation on lateral - Madera Canal, Calif 730-A-74 undated
Pumping Station, Calif 730-A-75 undated
Untitled 730 1932 October 7
Pumping Plant for Rice, River Garden farm Company, Knights Landing, California 730-B-a-1 1916 September
Pumping Plant for Rice, River Garden farms Company Knights Landing, California 730-B-a-2 (No neg) 1916 September
Interior of Pumping House, Reclamation District No. 1500, Sutter Basin July, 1917 730-B-a-3 1917 July
Pumping Water to a Portion of the Mallon-Blevins Rice Field north of Colusa, California. July, 1917 730-B-a-4 1917 July
James Canal Pumping Plant on Fresno Slough near Tranquility 730-B-a-5 1918 May 31
Pumping Plant and Ditch in Tulare Lake Section 730-B-a-6 1918 May 5
Booster Pumping Plant No. 1, Terra Bella Irrigation District 730-B-a-7 1918 May 7
Direct connected Motor driver, Centrifugal Pumps, Idaho 730-B-a-10 undated
Pump and wells on farm of J.E. Scarlett, near Yolo, Calif. The machinery shown is in a pit 12' deep 730-B-a-11 1900
Pumping from drainage ditch for beets. Talbert, Calif 730-B-a-12 1919 April
Pumping plants of Alpaugh Irrigation District 730-B-a-13 1919 November
Gasoline Engine and Pump Pit on Berry and Adams Rice Farm, near Marysville 730-B-a-15 1918 July
Side view of Wood Screw Pump Installation, Sacramento Valley Westside Canal Company 730-B-a-16 (No neg) 1919
Installing wood screw pump (350 sec. foot) Glenn Colusa, I.D 730-B-a-16a (No neg) 1919 July or August
Wood Screw Pump Installation. Sacramento Valley Westside Canal Co. (Now Glenn Colusa Irrig. Dist.) 730-B-a-17 (No neg) 1919
Pumping plant of Glenn-Colusa Irrigation District 730-B-a-18 1920 March
Pump and galvanized iron stand pipe Leroy Anderson Farm, Santa Clara Valley 730-B-a-19 1920 March
Rice Pumping plant above dredger cut of Reclamation District A80 730-B-a-20 1918
Booster plant and outlet from main pumping plant, Terra Bella Irrigation District 730-B-a-21 1918 May
Pumping plant - Delhi Irrigation Experimental tract, immediately after installation, spring, 1921 730-B-a-22 1921
Pumping plant at head of Central Canal - Glenn-Colusa Irrigation District. On left, battery of four wood screw pumps; on right, housing for centrifugal pumps 730-B-a-23 circa 1922
Down stream side of pumping plant - head of Glenn-Colusa, -Central Canal- Glen Colusa Irrigation District. On the right, suction end of wood screw pumps; on the left, suction end of centrifugal pumps 730-B-a-24 1922
Battery of wood screw pumps under installation at head of Central Canal - Glenn Colusa Irrigation District 730-B-a-25 1922
Pumping plant on one of the Walton Orchard Company's Orchards, Showing excess lift. Yuba City, California 730-B-a-26 1916 August
Typical pumping plant, Boston Land Company near Huron 730-B-a-27 1918 May 6
Main Booster Station, Lindsay-Strathmore Irrigation District 730-B-a-29 1918 May 7
Oil producer gas pumping plant, San Dimas, Calif 730-B-a-30 1910
Means pumping plant near Pomona, Calif. Two deep well pumps, one electric motor. Lift 305 feet 730-B-a-30 undated
Pumping plants, San Dimas Wash, Calif. The scramble for water, 26 plants in one square mile 730-B-a-31 1910
Pitzer pumping plant near Pomona, Calif 730-B-a-32 1910
Erection of machinery at pumping plant on Evergreen Ranch, Lordsburg, Calif 730-B-a-33 undated
Pumping plant, Teague Nurseries, San Dimas, Calif 730-B-a-34 1910
Pumping plant in San Dimas wash near San Dimas, Calif. Seven plants all lifting water over 200 feet 730-B-a-35 undated
Pumping plant and reservoir near Claremont Calif 730-B-a-36 undated
Artesian Belt W. Co. Pumping Plant, San Dimas, Calif 730-B-a-37 1910
Glenn-Colusa Irrig. Dist. Pumping Plant from east bank of canal 730-B-a-38 1928 June 23
Glenn-Colusa pumping plant from west bank of canal showing wood- screw pumps 730-B-a-38a 1928
Glenn Colusa pumping plant from west bank of canal showing wood- screw pumps 730-B-a-39 (2 neg.) 1928 June 23
Pumping plant of Big Springs Water Company, taken over by Big Springs Irrigation District 730-B-a-40 1928 July 24
A typical pumping plant for sprinkler operation. Such pumping plants are necessary when the water supply is not under pressure or when available pressure is inadequate. (Fig. 12, Overhead Sprinkling.) 730-B-a-41 (No neg.) undated
Pumping plant, general view, Docini, Davis 730-B-a-42 (No neg.) undated
Testing pumping plant. Horizontal Centrifuge 730-B-a-43 undated
Walking beam pump. Tulare County 730-B-a-44 undated
Pomona deep-well pump and pump house, Pomona, California, 1915 730-B-a-45 1915
Temporary installation, Delhi pumping plant, 1921 730-B-a-46 1921
Irrigation pumping plant, Cache Valley, Logan, Utah 730-B-a-47 1922 August
Runners from 2-stage Well turbine after 10 years operation in Well No.1, University Farm, Davis, Calif 730-B-a-48 1929 May 6
Hydraulic turbine operated pumping plant. Montague Water Conservation District. July 21, 1928 730-B-a-49 1928 July 21
Layne and Bowler turbine pump, Westinghouse motor used for irrigation at the G.K. Swingle ranch, east of Davis, Calif 730-B-a-50 1931 June 19
Pumping plant used for watering stock and flooding duck pond. S.H. Cowell ranch, 5 miles east of Davis 730-B-a-51 1931 August
Tractor plant on Russell Ranch, east of highway to Madison, three miles north of Winters 730-B-a-52 1931 August
Tractor pumping plant, Thurber's ranch, Pleasant Valley, west of Winters 730-B-a-53 1931 August
10" split case, double suction Byron Jackson horizontal centrifugal pump powered with 10-20 HP John Deere tractor on Roby ranch east of Winters. Maximum discharge approximately 2300 g.p.m 730-B-a-54 1931 August
Pelton pump in new well, City of Winters, east of railroad track 730-B-a-55 1931
Ira Gordon pumping plant, Layne and Bowler belted pump, 4 miles southeast of Davis 730-B-a-56 1931
Tractor plant on Schmeiser ranch, Yolo County 730-B-a-57 1931
Impellors from old Hart pump on Mulhauser ranch, Yolo Co. Note rubber bearings 730-B-a-58 1931
Tractor plant on Wm. Oeste Estate ranch, Yolo Co 730-B-a-59 1931
Centrifugal pump used for pumping from lateral ditch in Reclamation District 999 in the Delta of the Sacramento-San Joaquin rivers 730-B-a-60 1929
Drawing from which demonstration and experimental pump assembly was made by Sterling Pump Company 730-B-a-61 1930 March
Pumping plant No. 10 in Reclamation District 999. 60-inch siphon on left 730-B-a-62 (2 neg.) 1928
Centrifugal pump used in pumping water from canal to ground surface, Reclamation District 999 730-B-a-63 1928
Layne and Bowler turbine pump driven by Fordson tractor. Watkins Bros. ranch south of Davis 730-B-a-64 1931 August
Spencer and Machado pumping plant on south bank of Putah Creek, west of State highway 730-B-a-65 1931 August
Typical pumps, (1) Split-shell centrifugal pump; (2) single-suction centrifugal pump; (3) deep well turbine; (4) Single screw from deep well pump; (5) rotary displacement priming pump. (The pump appears just above the number) 730-B-a-66 1924
Removal of pump from well No. 2, University Farm, Davis 730-B-a-67 (3 neg.) 1924
View of pump removed from well no. 2, University Farm, Davis 730-B-a-68 1924
Pump parts removed from well No. 2, University Farm, Davis 730-B-a-69 1924
Removal of pump from well no. 2, University Farm, had casing had collapsed 730-B-a-70 1924
Booster pumping plant, No. 1, West Stanislaus I.D 730-B-a-71 1929
An Adams Diesel engine under test in shop at Los Angeles 730-B-a-72 undated
Pumping plant, West Stanislaus Irrigation District Similar to page 166, Bulletin 21 730-B-a-74 undated
Some pumping plants of Rancho Wells area of Lindsay Creek 730-B-a-75 undated
Installing Byron Jackson Submersible pump in #8 well. Aug. 1938 730-B-a-76 1938 August 18
Portable pumping plant for pumping water over levees. Seen at Burham's Ranch, 8 mi. N. of Lost Hills, Calif 730-B-a-77 1938 August 12
Sta. Cir. 312. Fig. 1.-Typical pumps. (1) Split-shell centrifugal pump opened for inspection; (2) single-suction centrifugal pump opened for inspection; (3) deep well turbine model with runners and shaft exposed, full-sized bowls and runner being shown in front; (4) single screw from deep well pump; (5) rotary displacement priming pump. (Pump appears just above number.) 730-B-a-78 1928
Sta. Cir. 312. Fig. 6.-Typical well rig used for heavy drilling. Note scow being dumped 730-B-a-79 1928
Sta. Cir. 312. Fig. 11.--Typical deep-well pumping plant in house 730-B-a-80 1928
Measuring discharge from pumping plants in Santa Clara Valley. Investigations conducted by C.V. Givan 730-B-a-82 Approx. 1934
Discharge from pumping plants in Santa Clara Valley investigations conducted by C.V. Givan 730-B-a-83 1934
Discharge from pumping plants in Santa Clara Valley investigations conducted by C.V. Givan 730-B-a-84 1934
Discharge from pumping plants in Santa Clara Valley. Investigations conducted by C.V. Givan 730-B-a-85 1934
Discharge from pumping plants in Santa Clara Valley. Investigations conducted by C.V. Givan 730-B-a-86 1934
Development of Well No. 18 by E.E. Luhdorff, Woodland. Well drilled by F.H. Eaton, Woodland. Well located east of Pomology spray house, on bank of Putah Creek 730-B-a-87 1947 August 14
Low lift propeller pump in canal 30 miles north of Mendota, Fresno Co 730-B-a-89 1954 April 28
Untitled 730-B-a-90 undated
Centrifugal pump on pit connected with 3 wells on Yolo Orchard 730-B-a-91 1900
Portable gasoline pumping engine used along Cache Creek Calif 730-B-a-92 1900
Wheel lifting water for Irrigation Directly Above Intake of Anderson-Cottonwood Irrigation District at Redding, California 730-B-c-1 undated
Mallon and Blevins Water Wheel. (Same as Picture No. 730-B-c- 3) 730-B-c-2 1917 May 1
Yuba Water Wheels, Mallon and Blevins Tract near Maxwell, California Rice Duty of Water Investigations in Sacramento Valley, 1917 730-B-c-3 1917 May 1
Water Lift, Tulare Lake Section 730-B-c-5 1918 May 05
Water Wheel in 4-way Structure in Tulare Lake Section 730-B-c-6 1918 May 05
Current wheel for lifting drainage water into Fresno Canal. Drainage from Faucher Creek nursery and Sunnyside Vineyar, Fresno, Calif 730-B-c-10 undated
Current lift wheel on Fancher Creek Nursery, Fresno County, Calif 730-B-c-11 1903 November
Current wheel in Modesto Canal for raising water to caretaker's house 730-B-c-12 undated
Current wheel on Fancher Creek Nursery, Fresno Co., Calif 730-B-c-13 1903 November
Water wheel, Geo. Roeding Ranch, Fresno, Calif 730-B-c-14 undated
Up-stream view of water wheel for low lifts, Mallon and Blevins Canal 730-B-c-16 1918 November
Water wheel for low water lifts, Mallon and Blevins Rice Canal. Sacramento Valley 730-B-c-17 1918 November
Water wheel for low lifts, Mallon and Blevins Rice Canal 730-B-c-18 1918 November
Current wheel on Riverside W. Cos. Upper Canal 730-B-c-20 undated
7000 GPM water wheel on Moneta Ranch near Colusa held well to 4" above that centrifugal baiter 730-B-c-21 1915 June 13
Manometer tube and pitot tube used by Mr. I.H.Teilman, Consolidated Irrig. Dist. for testing pumps. Mr. Teilman claims that he obtains very reliable results with this type of measuring device 730-B-d-1 1929 July 9
Pump test on Bassett Ranch, west of Winters 730-B-d-2 1931
Test of pumping plant on Theodore Thorp's ranch, Winters 730-B-d-3 1931
Test of pumping plant, Robinson's ranch, one mile and half east of Winters 730-B-d-4 1931
Pump testing, Wolfskill Experimental Orchard, Winters, Calif. George Odell reading manometer 730-B-d-7 1938 December 1
Pump testing, Wolfskill Experimental Orchard, Winter, Calif. 2-foot rectangular weir 730-B-d-8 1938 December 1
Pump testing, Wolfskill Experimental Orchard, Winters, Calif. 2-foot rectangular weir 730-B-d-9 1939 December 1
Pacific Gas & Electric Power House and Penstock, Brown's Valley Irrigation District, Yuba Co., California 730-C-a-1 1916 June 7
Upper power house, San Antonio Canon, near Pomona, Calif. Pacific Light and Power Co. owner 730-C-a-2 undated
Middle power house, San Antonio Canon, near Pomona, Calif. Ontario Power Co. owner 730-C-a-3 undated
Lower power house, San Antonio Canon, near Pomona, Calif. Ontario and San Antonio Heights Railway Co. owner 730-C-a-4 undated
Power House at Don Pedro Dam 730-C-a-5 1928 October 28
Gasoline Engine No. 2 25 HP, owned by S.V.Scarlett, Calif. This engine used for pumping from Cache Creek on a number of ranches 730-C-b-2a 1900
Pumping Engine, Calif 730-C-b-3 1900
Untitled 730-B-4 undated
Untitled 730-B-5 undated
Untitled 730-B-6 undated
Sub-station, Modesto Irrigation District power plant 730-C-c-1 1924 May 22
Power sub-station - Modesto Irrigation District, May 22, 1924 730-C-c-2 1924 May
Save 1/2 the power by using the wheel in place of the centrifugal collins water wheel 730-C-c-4 1918 April 27
Vegetable Gardens, Irrigated by Windmills, South San Francisco, California 730-C-d-1 (No neg) 1916 March 11
Typical hilltop irrigation SW of Colma, vegetables irrigated from wind mills. Elevation about 600' 730-C-d-7 1920 November 9
Waste in Pumping. Note Distance water is carried above ground surface. Yuba City, California 730-Z-1 1916 August
Mat of fig roots taken from well on A.M. Thorpe ranch near Winters, Calif. Width of mat represents inside circumference of well 730-Z-2 1931 June
Thornton's Well, Palo Verde Mesa, California 735-A-1 1914 December
Artesian Well, Upper Lake, Calif. This well has never given out 735-A-3 1900
Valley above Terra Bella Irrigation District showing ranch of 100 acres proposed to be purchased by the district for a Pumping ground 730-A-5 1919 November
Artesian Wells on east side of Big Springs, Siskiyou County 730-A-6 1928 July 24
Douglas hand pump no. 4. Well used for measuring depth to ground water in Putah Creek investigations. SE1/4, S36, 8N, R1W 735-A-7 1931 August
Well used for measuring depth to ground water in Putah Creek investigation. S10, 7N1E 730-A-8 1931 August
Blowers' well, S.E. of Woodland 735-A-15 1931 September
Lantern slide negatives as follows filed in envelope 735-B-46 735-B-46 1935
Clearing brush from raw land with railroad rail and 8 horses 740-A-2 1906 October
Leveling land, Imperial Valley. Removing hummocks with Fresno scrapers 740-A-3 1906 September
Clearing brush from new land in Imperial Valley, Calif. with the Beam. This not only clears the brush but also removes a portion of the small hummocks 740-A-4 undated
Clearing ground for irrigation, Modesto, Calif 740-A-6 undated
Uncleared sage brush land, Malin I.D. Orland project 740-A-9 1929 June
Weighted rubber tired wheel tractor used in combination with a carry-all for earth moving. Taken near Campbell Tract 740-A-10 1953 April
See 775 for Home made level 740-B undated
Leveling Very Sandy Land, Fairmead Colony, Madera County, California 740-B-1 1915 February 24
Levelling check with Fresno scraper, Grain irrigation plat, Modesto, Calif 740-B-2 undated
Drag for levelling land, Willows, California 740-B-3 1916 March
Levelling Land for Rice on Spalding Ranch Willows, California 740-B-4 undated
Levelling Land for alfalfa, Davis, California 740-B-5 1916 October
"Leveller" for Grading Land, Willows, California 740-B-6 1916 September
"Leveller" for Grading Lnd, Willows, Cal 740-B-7 1916 September
Drag for Levelling Land, Willows, California 740-B-8 1916
Levelling Land for Rice, Wiltons, California. Heavy Drag Pulled by Tractor 740-B-9 undated
Buck Scraper, Unloaded, Imperial Valley, California 740-B-10 1916
Buck Scraper, Loaded, Ipmerial Valley, California 740-B-11 1916
Leveling check with Fresno scraper. Grain irrigation palt, Modesto, Cal 740-B-14 undated
Preparing Land for alfalfa Irrigation, Willows, Cal. Tractor and Checker 740-B-16 1916
Side of Lovelock tail buck scraper 740-B-17 1918 May 18
Tail buck scraper on Ontario Sewage Farm made in Lovelock, Nevada 740-B-18 1918 May 18
Land levelled for border irrigation of alfalfa, Menlo Park, Sacred Heart Academy 740-B-19 1920
Land levelled for border irrigation of alfalfa, Sacred Heart Academy, Menlo Park 740-B-20 1920
Levelling land subsequently planted to Muir peaches. Delhi Experimental Irrigation Tract 740-B-21 undated
Levelling land for alfalfa, Davis, Calif 740-B-22 1916 October
Marvin land leveller. Wheel base 60 ft. Knights Landing 740-B-26 1938 April 1
Grading land for ladino clover. Wyatt's ranch, Oakdale, Calif. Caterpillar tractor and Le Tourneau scraper. Contract, $14.00 per acre 740-B-27 1938 August 9
Land preparation for alfalfa. Levees have been thrown up for pre- irrigation, Dan Best's ranch near Knights Landing. Sept. 2, 1938 740-B-28 1938 September 2
Hydraulic scraper for land levelling. Seen at Burham's Ranch, 8 mi. North of Mass Landing, Calif 740-B-29 1938 August 12
Land leveler built by Schmeiser Mfg. Co., Davis. Owned by Eakel Bros., Woodland, Calif. This is one of a few such machines that was constructed on order. Said to be very satisfactory, the partial disadvantage being it requires 2 men to operate it 740-B-30 1938 August
Leveler built and used by M. I. Sanderson, Davis, Calif. Sept. 2, 1938. Hydraulically operated. Cost approximately $400.00 740-B-31 1938 September 2
Le Tourneau Carry-all scraper operated with caterpillar RD 7 tractor. Weyand Ranch between Davis and Dixon. This outfit was operated by Nichols Creagin, Modesto. Sept 2, 1938 740-B-32 1938 September 2
George Knaggs' land leveller used by him, 5 miles west of Dixon, south of Putah Creek Bridge. Machine built by Joe West, Dunnigan. Machine has a 60 ft. wheel base "tumble bug" scraper 740-B-34 1938 September
Detail of leveling machine built by Joe West, College City. machine used by Jesse Knaggs near Davis. This picture taken on Sept. 2, 1938 740-B-35 1938 September
14 ft. Tower scraper with Matley airlift operated with 35 H.P. Allis Chalmers tractor. Geo. Knaggs, West of Davis. View in negative file shows scraper loaded. Pictures taken on film damaged by fire, June 30, 1938 740-B-36 1938 September
Leveling machine built and used by Dan Best, Woodland, California. The machine has 75' wheel base and is 12' wide. Drawn by Caterpillar D8 tractor. Machine cost about $1,000 to build. Picture shows machine second time over field 740-B-37 1938 September 2
Sorenson Brothers' leveler, Mendota, Calif 740-B-38 1938 September 2
Caterpillar Diesel RD4 pulling homemade float, preparing 4000 acres for tomatoes. Cover 60 acres in two 11-hr. shifts, consuming 2 1/2 gals. 5 cents fuel per hr. This RD4 has operated 5000 hours, and is one of a fleet of Caterpillars on this 7000 acre enterprise. Owner, H.P. Garin Co., Brentwood, Calif 740-B-42 1937 April
Scraper and clod crusher. T.G.Schmeiser ranch, Fresno 740-B-43 (No neg.) 1940
Two views of Marvin land planer. Field S.W. of Woodland, California. The width of this machine is 8 or 10 ft. and the wheel base is 60 ft. The position of the scraper is adjustable. The usual practice is to set it a little higher for the first time over the field, and then set it down so it forms a true plane 740-B-44 1942 March 16
(a) View of land recently levelled with the Marvin land planer. (see 740-B-44). (b) View of land leveler seen about 5 miles S.W. of Woodland. This machine is about 12 ft. wide and has a wheel base of about 40 ft. This machine is ingenious with respect to the electrical control of the position of the scraper. By means of ropes it can be pulled from the tractor seat. The scraper can be moved up or down with a small electric motor driven by storage batteries 740-B-45 1942 March 16
Land leveling equipment consisting of Ateco Carry-All, Serial No. 2304, Model No. H-81 made by American Tractor Equipment Corp, Oakland, California and International Diesel Tractor T.D. 18. Level work in progress on Solano Tract, University farm, Davis, Calif 740-B-46 1948 October 7
Landleveling equipment consisting of Ateco Carry-All, Serial No. 2304 Model No. H-81 made by American Tractor Equipment Corp., Oakland, Calif. and International Diesel Tractor T.D. 18. Level work in progress on Solano Tract, University farm, Davis, Calif 740-B-47 1948 October 7
Land leveling equipment consisting of Ateco Carry-All, Serial No. 2304, Model No. H-81, made by American Tractor Equipment Corp., Oakland, Calif. and International Diesel tractor T.D. 18. Level work in progress on Solano Tract, University Farm, Davis, Calif 740-B-48 1948 October 7
Land leveling equipment consisting of Ateco Carry-All, Serial No. 2304, Model No. H-81, made by American Tractor Equipment Corp., Oakland, Calif. and International Diesel Tractor T.D. 18. Level work in progress on Solano Tract, University farm, Davis, Calif 740-B-49 1948 October 7
Land leveling equipment consisting of Ateco Carry-All, Serial No. 2304, Model No. H-81, made by American Tractor Equipment Corp., Oakland, Calif. and International Diesel Tractor T.D. 18. Level work in progress on Solano Tract, University farm, Davis, Calif 740-B-50 1948 October 7
Land leveling equipment consisting of Ateco Carry-All, Serial No. 2304, Model No. H-81, made by American Tractor Equipment Corp., Oakland, Calif. and International Diesel tractor T.D. 18. Level work in progress on Solano Tract, University Farm, Davis, Calif 740-B-51 1948 October 7
Landplane used for smoothing land 740-B-52 1949 July 14
Small chisel for renovating land following leveling 740-B-53 1949 July 14
Border machine, owned by Mr. Craft, Oakdale, Calif. for making narrow checks (15 ft.) for pasture irrigation. Equipped with wings for making 21 ft. checks. Rear view 740-B-54 1949 July 14
Border machine, owned by Mr. Craft, Oakdale, California for making narrow checks (15 ft.) for pasture irrigation. Equipped with wings for making 21 ft. checks. Rear view with blades in cutting position 740-B-55 1949 July 14
Border machine, owned by Mr. Craft, Oakdale, California for making narrow checks (15 ft.) for pasture irrigation. Equipped with wings for making 21 ft. checks. Side view with blades in working position 740-B-56 1949 July 14
Border machine, owned by Mr. Craft, Oakdale, California for making narrow checks (15 ft.) for pasture irrigation. Equipped with wings for making 21 ft. checks. side view with blades raised 740-B-57 1949 July 14
Atlas scraper being used to smooth land 740-B-58 1949 October
Miller or Rotary Scraper - 6 yd. bucket, powered by 22 H.P. tractor. Haussler Ranch. Davis, Calif 740-B-59 1949 November
Miller Scraper for leveling land. University Farm demonstration 740-B-60 1950 October
Turnapull scraper for leveling land owned by Heidrick Bros, Woodland, Calif 740-B-61 1950 April
Land plane for smoothing land, University Farm 740-B-62 1949 August
Land leveling equipment at work north of Sacramento, Calif 740-B-63 1949 May
Land leveling equipment at work north of Sacramento, Calif 740-B-64 1949 May
Land leveling equipment at work north of Sacramento, California 740-B-65 1949 May
Land leveling equipment at work north of Sacramento, Calif 740-B-66 1949 May
Border strip drag for leveling individual border strips. University Farm 740-B-67 1950 September
Crawler tractor carrier scraper unit, on farm about 5 miles northwest of Davis 740-B-68 1953 April
A rubber tired 4-wheel tractor and carrier scraper unit. Taken near Bakersfield 740-B-70 1953 April
Crawler tractor and Hydraulically operated bottomless scraper. This picture was taken on a farm adjacent to Highway 40 two miles west of Dixon 740-B-71 1953 May
A crawler tractor drawn 80 foot land plane. This picture was taken near Bakersfield 740-B-72 1953 April
This is a rubber tired two wheel tractor and carrier scraper unit. Taken on a farm 5 miles northwest of Davis 740-B-73 1953 April
Buck Scraper 740-B-74 1954 January
Double mole board plow for leveling ridges. Taken at Wolfskill 740-B-74 1954 November 15
Border disk on carrier for transporting showing a hook at left end for attaching a gap closer. Taken at Wolfskill 740-B-75 1954 November 15
Untitled 740-B-76 undated
Corrugator for preparing flat land for pasture irrigation. Published Surface Irrigation Calif Agriculture April 1957 Constructed by Henry Van Dorsten, Woodland Calif 740-B-77 1955
Constructing lateral ditch in extension of system of I.W. Co. No. 4, near Brawley, Calif 740-C-1 1906 October
Making laterals under the Modesto Turlock Canal, Calif 740-C-2 undated
Four horse Fresno scraper. Excavating canal, Yolo County, Calif 740-C-3 1907
Making a Ditch with Excavator, Willows, Cal 740-C-4 1916 March
Ditch Construction, Yolo County rice field near Plainfield, showing use of excavator 740-C-5 1920
Ditch machine built by Elmer C. Von Glahn from Killefer subsoiler and ditcher. Makes ditch 20" deep below ground level. Used for sprinkler machine 740-C-6 1938 August 12
Ditcher seen at Mendota, 8/12/38 740-C-7 1938 August 12
Large tractor-drawn ditcher - Owner, H. Von Dorsten. Woodland, Calif 740-C-8 1949 November
Large Ditch plow opening ditch in By-pass. Owned by Von Dorsten, Woodland, Calif 740-C-9 1949 August
Large Plow for opening ditches, owned by Heidrick Bros., Woodland, Calif 740-C-10 1949 August
Ditch Plow. Taken On A Field About 2 Miles South Of Davis, California 740-C-11 1950 Fall
Untitled 740-C-12 undated
Tractor Ditches O.E.S. - I & D Investigation 761-A 740-C-13 undated
Fresno scraper building farm lateral on farm of G.W. Horn, Modesto 740-C-14 1904
Head ditch, alfalfa irrigation, Idaho 740-C-15 1958
Checks Fully Cultivated Ready for Seeding 740-D-4 1919
Rolling Checks After Seeding 740-D-5 1919
Discing Checks before seeding 740-D-6 1919
Making checks at grain irrigation palt, Modesto, Calif 740-D-7 undated
Large checker, Phelan Ranch, Butte County California 740-D-9 1916
Large checker, Phelan Ranch, Butte County, Cal. Requires two tractors to pull it 740-D-10 1916
Checker for Making Rice Levees, Willows, Cal 740-D-11 1916 September
Checker for Making Rice Levees, Willows, Cal 740-D-12 1916 September
Checker for Making Levees, Willows, California 740-D-13 1916 October
Checker for Making Rice Levees, Willows, Cal 740-D-14 1916 April
Preparing Land for Irrigation. Making Levees with Tractor and Checker, Willows, California 740-D-15 1916 September
Ashley Checker, Biggs, California 740-D-16 1916
Steel "V" Used in Making Ditches and Levees in Rice Field, Biggs, Cal 740-D-17 undated
Steel "V" Biggs, California 740-D-18 1916 October
alfalfa field on Durham Ranch of Stanford University east of Butte Creek 740-D-19 1917 December
Land prepared for border irrigation of alfalfa 740-D-21 undated
Newly prepared border for irrigation of alfalfa 740-D-22 undated
Constructing levee for rice irrigation 740-D-23 1932
alfalfa land prepared for strip checks 740-D-24 1932
alfalfa field prepared for contour flooding 740-D-25 1932
Land prepared for cantaloupes in Imperial Valley, See House Document No. 259, International Water Commission, U.S. and Mexico 740-D-26 1927
Newly prepared alfalfa checks. Klamath 740-D-27 1929
Home-made machine for building alfalfa borders, 12 ft. wide. Built and used by Eakle Bros. Woodland, Calif. Appearance of borders after constructing with this machine is shown in picture 740-D-29 740-D-28 1938 September 2
Levee used for trimming alfalfa borders after constructing with the machine shown in picture 740-D-28. The appearance of the levee after trimming with this levee is shown in picture 740-D-31. Eakel Bros. Sept. 2 740-D-30 1938 September 2
Appearance of alfalfa borders after trimming with machine shown in picture 740-D-30. Eakel Bros. Sept. 2, 1938 740-D-31 1938 September 2
Machine used for constructing borders for Ladino clover. Built and operated by Frank Wyatt and James Dunn (upper seat), Oakdale, California. This machine levels the strip cross-wise and constructs the borders in one operation at a cost of about $2.00 per acre. 2 left-hand views in negative file. Oct. 5, 1938 740-D-32 1938 October 5
Ladino clover, Oakdale, Calif. Shows borders made by Wyatt and Dunn machine after field has been in clover several years. Sheep use borders for paths so that very little clover grows on top 740-D-34 1938 October 5
Newly prepared land for alfalfa Frank. Hillside near pump No. 1, University Farm, Davis. Terraced checks for alfalfa 740-D-36 1940 January 3
Border ridger, Heidrick Bros., County Road 97, Woodland 740-D-37 1947 Spring
Heidrinck Bros. Doodle-Bug (turn-over) Scraper for checking land for border irrigation 740-D-38 1949 October
Plowing ridges made with Doodle-bug (turn-over scraper) preparatory to the final shaping of the levees for a border irrigated field. Heidrick Bros., Woodland equipment 740-D-39 1949 October
Drop scraper for checking preparatory to making the levees for border irrigation 740-D-41 1949 October
Patrol Highway Blade being used to shape the levees for Border irrigation 740-D-42 1949 October
Tractor pushing a ditch filler and pulling a small "a". border shaper as a means to construct the levees for border irrigation. Prior to this operation the field had been checked 740-D-43 1949 October
Corrugating for a contour-corrugation system for irrigating pasture on flat land and heavy soil 740-D-45 1949 November
Contour-corrugation system for irrigating pasture on flat land & heavy soil 740-D-46 1949 November
Contours of a contour-corrugation system for irrigating pasture on flat land and heavy soil 740-D-47 1949 November
Corrugated field, also to be contoured for pasture irrigation, corrugator in foreground 740-D-48 undated
Levees being built by Wiggins border machine. Note difference in size of levees on upper and lower side of check 740-D-49 1949 November
Border Machine for constructing 28' checks for irrigating alfalfa. Will take out 0.5% side slope. Machine owned by Jim Wiggins, Dixon, Calif 740-D-50 1949 November
Contour-corrugation system for irrigating pasture on flatland & heavy soil 740-D-51 1949 November
Heidrick Bros., Woodland, Calif. Border Shaper consisting of an "A" and a "V" in one farm - steel constructed 100 across per day could be covered with this machine 740-D-52 1949 November
Heidrick Bros. Border Shaper 740-D-53 1949 October
Contour checks with corrugations for irrigation and surface draining pasture - By-pass - S.E. Dixon, Calif 740-D-54 1950 August
Corrugated contour checks for pasture irrigation - By-pass 740-D-55 1950 August
Contour check irrigated pasture S.E. of Dixon, Calif 740-D-56 1950 August
Border irrigated land furrowed for first irrigation, between Davis and Woodland 740-D-57 1950 August
Craft's border machine, Oakdale, California 740-D-58 1950 August
Craft's Border Machine, Oakdale, Calif 740-D-59 1950 August
Craft's Border Machine, Oakdale, California 740-D-60 1950 August
Border Machine. Oakdale, California 740-D-61 1950 August
Heidrick Bros., Woodland, Calif., Doodle-Bug (turn-over scraper) for checking land for border irrigation 740-D-62 1949 November
Heidrick Bros., Woodland, Calif., Doodle-Bug (turn-over scraper) for checking land for border irrigation 740-D-63 1949 November
Border Drag, University Farm 740-D-64 1950 August
Border Machine owned by Mr. Craft, Oakdale, California 740-D-65 1950
Border shaper, Heidrick Bros., Woodland, Calif 740-D-66 1950 July
Heidrick Bros. Flip Flop or Turnover scraper. Woodland, California 740-D-67 1949 August
Levee for temporary border system. Crop is sesbania 740-D-68 1950 August
Border disk being used to throw up borders, Stanislaus County 740-D-69 1951 June
Border disk being used to throw up borders, Stanislaus County 740-D-70 1951 June
Border disk being used to throw up borders, Stanislaus County 740-D-71 1951 June
Border disk being used to throw up borders, Stanislaus County 740-D-72 1951 June
Making levees for border irrigation with equipment consisting of ridger in front of the tractor for cross checking dumps and a border shaper to the rear of the tractor. Farm adjacent to Davis to North 740-D-74 1951 Summer
Implement used for closing levee gaps used on University Farm at Wolfskill 740-D-75 1952 March
Implement for knocking down contour check levees on the University Farm at Wolfskill 740-D-76 1952 March
Levee vee constructed of sheet metal and angle irons used for constructing contour check levees. Picture taken in the Winters area during March 1952 740-D-77 1952 March
Border machine. Picture taken between Davis and Woodland, Calif 740-D-78 1950 August
Two types of gap closers. Small one on left is an old type which gives relatively inferior performance. One on right has better capacity and has ball bearing movement. Its performance is reported to be very good. Taken at Sargents Mfg. Plant near Winters 740-D-78 1954 November 15
A satisfactory orchard furrower, commonly seen in Southern California 740-E-1 undated
Furrowing for Orchard Irrigation, Southern California 740-E-2 1910
Burrowing Out Machine for Orchard Work, California 740-E-3 1916 July 20
Furrowing Out Machine for Orchard Work, California 740-E-4 1916 July 20
Furrowing Out Machine for Orchard Work, California 740-E-5 1916 July 20
Furrowing Out Machine for Orchard Work, California 740-E-6 1916 July 20
Furrowing Out Machine for Orchard Work, California 740-E-7 1916 July 20
Preparing Muscat vineyard for irrigation with disc harrow. Clovis, California 740-E-8 1916 June
V Crowder used in Making Ditch, Fresno County, Cal. Near Reedley 740-E-9 (No neg.) 1916 June
Making Levees in Orchard with Road Scraper, Merced near Planada, California 740-E-11 1916 July 20
Home-Made V Crowder for Making Ditches in Santa Clara Valley California, prune Orchard 740-E-12 1916 August
"V" crowder for making ditches, Fresno County 740-E-13 1916 June
Orchard ridger, Fresno County, California 740-E-14 1916 June
Wing Plow for Making Levees, Patterson, California. Note Heavy Soil 740-E-15 1916 May
Triangular Harrow for Cultivating Strawberry Furrows, Lodi, Cal 740-E-16 1915 September 14
Detail view of cultivators used on Arlington Fruit Company's Ranch, Riverside, Calif 740-E-17 undated
Cultivator blades, Arlington Fruit Company's Ranch, Riverside, Calif 740-E-18 undated
Furrowing young orange orchard near Claremont, Calif. Better practice to irrigate entire space between rows 740-E-19 undated
Furrow Irrigation. Destroying furrows by cultivation in orange orchard near Pomona, Calif 740-E-20 undated
Furrow irrigation. Destroying furrows by cultivation near Pomona, Calif 740-E-21 undated
Two-horse float in an orchard 740-E-22 undated
Furrowing for irrigation in the Lefingwell Grove, near Whittier 740-E-23 undated
Orchard levees built by Parish ridger 740-E-24 1925 May 31
Parish ridger in operation 740-E-25 1925 May 31
Building orchard levees with a Parish ridger 740-E-26 1925 May 31
Making levees on tractor. Mountain View, California 740-E-27 1922
Making levees on tractor. Mountain View, California 740-E-28 1922 June 1
Making levees. Mountain View, California 740-E-29 1922 June 1
Checking Land for Border Irrigation of Alfalfa on Durham State Colony, Fall of 1919 740-E-30 1919
Land prepared for seeding and irrigation of alfalfa 740-E-32 undated
Preparing levees for basin irrigation with V crowder. Apricot orchard, Mountain View Deciduous Fruit Station 740-E-33 undated
Contour irrigation or orchard in Santa Clara Valley 740-E-40 1934 May
Victor Valley. Taken to show type of soil 740-E-41 1917
Blade type orchard ridger. University Farm 740-E-42 1938 August 20
Furrows on contour grades varying from 1% at left to 5% at right. Irrigation class 120 trial to determine most desirable grade for contour furrows for this soil type, University Farm, Davis, Nov. 1938. Erosion in furrow was noticeable in all except the upper furrow. Contour grades of 1%, then 1 1/2, 2, 2 1/2, 3, 3 1/2, 4 and 5 % at right 740-E-43 1938
(1) Machine for constructing broad furrows. Walnut orchard, Pomona. (2) Closeup of machine for constructing broad furrows 740-E-44 1939 May
Small steel levee shaper for constructing orchard contour levees 740-E-45 1949 October
Orchard contour irrigation near Winters, Calif 740-E-46 1949 October
Untitled 740-E-47 undated
Fresno scraper - building farm lateral on farm of G.W. Harn - Modesto, Calif 740-E-48 1904 July
Preparing land for furrowing and checking orchards 740-E-49 undated
Furrow irrigation scenes near Yakima, Washington. See card number 750-C-201 740-E 1932
Showing tillage operations in Imperial Valley Enlarged prints fo these views in negative file. Negatives on file at Citrus Experiment Station Riverside, Calif 740-F-1 1936 August 30
Subsoiling-Oakdale, California 740-F-12 1950 August
Subsoiling - Oakdale, California 740-F-13 1950 August
Subsoiling - Oakdale, California 740-F-14 1950 August
Subsoiling - Oakdale, California 740-F-15 1950 August
Untitled 740-F-17 1952
Untitled 740-F-18 1959
Land prepared for contour irrigation and later abandoned. Kern County Land Company 740-Z-1 1915
Overflow valve for alfalfa planted on terraces. Arlington, Calif 750-A-1 1919 May
Orchard valve connected to steel pressure line, Whittier, Calif 750-A-2 1919 March
Overflow valve, Arlington Heights, Arlington, Calif 750-A-3 1919 May
Over-flow orchard valves for contour irrigation. Valves of 16 in. pipe with wier partition set vertically in center of pipe. Bastanchury Ranch. La Habra, Calif 750-A-4 1919 May
Permanent alfalfa valve. Santa Paula, Calif 750-A-5 1919 June
Orchard distributing pipes. Raised to be out of cultivation. (2nd view) Mont Bello, Calif 750-A-6 1919 March
Orchard distributing valve of vit. clay pipe (old type) Gates of cast iron with rubber gaskets which press against plates with pressure. Highlands, Calif 750-A-7 1919 March
Orchard distributing pipes. Water runs from 1/4in. holes spaced 4 feet apart feeding furrow. (1st. view) Monte Bello, Calif 750-A-8 undated
Large orchard valve. Not good except against curb or fence as it obstructs cultivation. Whittier, Calif 750-A-9 1919 May
Large orchard valve feeding two middles. Good when against curb otherwise in way of cultivation. Covina, Calif 750-A-10 1919 March
4 in G.I. portable pipe and slide gates. Santa Ana, Calif 750-A-11 1919 March
Tapoon and 2 in. G.I. spouts in walnut irrigation. Santa Ana, Calif 750-A-12 1919 March
Overflow orchard valve, Arlington Hts., Arlington, Calif 750-A-13 1919 May
Oval orchard valve. Santa Paula, Calif 750-A-14 1919 April
Redbanks Orchard, Tulare County, California 750-A-15 1916 May
Common type distributing orchard valve of terra cotta pipe. Monte Bello 750-A-16 1919 June
Alfalfa Valve made to fit an orchard valve for irrigating inter crop of alfalfa in young orchard. Elsinore, Calif 750-A-17 1919 March
Orchard distributing pot. La Habra, Calif 750-A-18 1919 April
Overflow orchard hydrant. North Whittier Heights, Calif 750-A-19 1919
Orchard distributing valves, Monte Bello, Calif 750-A-20 1919 June
Tapoons and spouts, walnut orchard, Santa Ana, Calif 750-A-22 1919 March
Portable pipe distributing device for orchards. Orange, Calif 750-A-25 1919 May
Showing use of metal troughs in orchard irrigation. Troughs made of 10' corrugated roofing iron 750-A-26 1903 August
Use of metal troughs in orchard near Monrovia, Calif. Troughs rectangular to cross-section and made of No. 22 galvanized iron 750-A-27 1903 August
Canvas dam 750-A-28 1903 August
Showing use of metal troughs in orchard irrigation 750-A-29 1902 August
Kellar-Thomason appliances for irrigation 750-A-30 1912 May
Overflow stands for contour irrigation. Note corrosion down hill due to rains. Bastanchury Ranch, La Habra, Calif 750-A-35 1919 May
Portable stand delivering water to galvanized iron surface pipe line, Santa Clara Valley 750-A-36 1920 March
Wooden troughs used in combination with concrete stand pipe. Chula Vista, Cal 750-A-37 1919 January 19
Flow Delivery Stand, Sweet Water Valley, San Diego County 750-A-38 1919 January
Combination concrete and corrugated iron stand pipe. Irrigation system of the Salinas Land Company near Kings City, Salinas Valley 750-A-39 1919 July
Standpipe - Los Altos Water Company, Los Altos, California 750-A-40 1921 August
Vitrified clay pipe delivery stand. Marsh-Cruickshank lemon grove. Vista Irrigation District 750-A-41 1926
Furrow irrigation, showing faulty installation of hydrants on sandy soil. Peach orchard. San Fernando Valley 750-A-42 1919
Furrow irrigation showing faulty installation of Hydrants on sandy soil. Peach orchard, San Fernando Valley 750-A-43 1919
alfalfa field being irrigated from a 36-inch overarch type alfalfa valve. The location is northeast of Fresno 750-A-44 1950 Summer
12-inch alfalfa valve. Location is the Armstrong Tract of the University Farm 750-A-45 1951 Summer
Irrigation of plot No. 13 of the Muir Peach Orchard, Davis, California 750-B-6 1918 May 18
Irrigation of vineyard, Block C, University Farm, Davis, May 18, 1918 750-B-7 1918 May 18
Irrigation of vineyard, Block C, 1918, May 18, 1918. Davis, Cal 750-B-8 1918 May 18
Slip-joint pipe. Irrigating alfalfa with portable steel stands and surface pipe, near Chino, Calif 750-B-9 1913 September
Slip-joint pipe. Irrigating alfalfa from pumping plant, Chino, Calif 750-B-10 1913 September
Slip-joint pipe. Irrigating alfalfa near Chino, Calif 750-B-12 1913 August
Slip-joint pipe and cement stand used in irrigation of alfalfa, near Chino, Calif. 10-inch stand, 7-inch pipe 750-B-13 1903 August
Irrigating prune orchard 4 miles n. of Santa Rosa on farm of Harrison Findlay 750-B-14 1916
Slip joint pipe. Joining sections. Alfalfa irrigation near Pomona, Cal 750-B-15 1903 August
Slip joint pipe. Alfalfa irrigation near Pomona, Calif 750-B-16 1903 August
Flooding pear orchard in Santa Clara Valley 750-B-17 undated
Irrigation of date palms in Coachello Valley 750-B-18 1932 March 1
Irrigation of date palms, Coachella Valley 750-B-19 1932 March 1
Canvas hose. Cement stands for irrigation, showing use of metal outlet and canvas hose connections, Monrovia, Calif 750-B-20 1903 August
Slip-joint pipe irrigation of alfalfa near Pomona, Calif 750-B-21 undated
Canvas hose. Junction of cement stand pipe and canvas hose. Alfalfa irrigation near Pomona, Calif 750-B-22 1903 August
Canvas hose showing pipe connections 750-B-23 1903 August
Irrigating alfalfa by flooding system by means of a tapoon, Modes to Irrigation District, Calif 750-B-24 1904
Slip joint pipe distribution for alfalfa irrigation, near Pomona, Cal 750-B-25 1903 August
Slip joint pipe. Alfalfa irrigation with 7" galvanized iron pipe near Pomona, Calif. Pumps supply water 750-B-26 1903 August
Flooding system, Gibson's, Calif. Flooding alfalfa on ranch of W.B.Gibson; water coming from Moor Ditch 750-B-27 1900
Flood irrigation - Vineyard 750-B-28 undated
Flooding pasture lands from overflow of San Joaquin River 750-B-29 1922
Flooding land by border method using head of 30-40 c.f.s. Kern County Land Company 750-B-30 1915
Young rice just coming through flooded basin. Sutter Co. on highway one mile West of Robbing 750-B-31 1947 May 14
Young rice just coming through flooded basin. Sutter Co on highway 750-B-32 1947 May 14
Irrigating Strawberries Under Single Row System, From V-shaped Wooden Flume, Sunnyvale, California 750-C-1 1915 October 18
Irrigating Strawberries, Pajaro Valley, Cal 750-C-2 1915 August 26
J.E. Reiter's Strawberry Field, Pajaro Valley, Cal 750-C-3 1915 August 26
Irrigating Strawberries, Bowman, California 750-C-4 1915 October 30
Irrigating Strawberries from Rectangular Flume, Pajaro Valley, Cal 750-C-6 1915 August 26
Young Strawberries under Double Matted-Row System, Lodi, Cal 750-C-8 (No neg.) 1915 September 14
Irrigated Strawberries, Double Matted-Row System, Lodi, Cal 750-C-9 (No neg.) 1915 September 14
Irrigating Strawberries Under Matted-Row System, Pajaro Valley, California 750-C-10 1915 August 26
Strawberries Under Matted-Row System, Pajaro Valley, Cal 750-C-11 1915 August 26
Irrigating Strawberries, Sunnyvale, California 750-C-12 1915 October 18
Strawberry Field under Double Matted-Row System, Lodi, Cal 750-C-13 1915 September 14
Irrigating Strawberries From V-Shaped Flume, Sunnyvale, Cal 750-C-15 1915 October 18
Hillside Planting of Strawberries, Pajaro Valley, Cal 750-C-16 1915 August 27
Young Loganberries, Under Double Furrow System, Moneta, Cal 750-C-17 1916 January 7
Strawberry Field, Pajaro Valley, Cal 750-C-18 1915 August 26
Irrigating Watermelons, Imperial Irrigation District, Cal 750-C-19 (No neg.) 1915 June 18
Irrigating Volunteer Cotton, Imperial Irrigation District, Cal 750-C-20 1915 June 18
Irrigation Furrows in Peach Orchard near Newcastle, Placer County, California 750-C-21 undated
Another Method of Making "Off-sets" in Irrigation Furrows in Sierra Foothills of California 750-C-22 undated
Irrigated Apple Orchard, Hood River Irrigation District, Oregon 750-C-23 1916 November 13
This, and Pictures Nos. 312 & 313 show water being led in the main furrow down a steep ridge by means of "zig-zaggin". At each point in the "zig-zag" water is led out in furrows to the trees 750-C-25 undated
Plum orchard, Tulare county, furrow irrigation 750-C-26 1915
Same Practice as Shown in Picture No. 303, namely the irrigation of orchards in the Sierra foothills with "off-set" furrows around the trees, Placer County, California 750-C-27 undated
Furrows in peach orchard, Delano sandy loam soil 750-C-29 1916
Looking up Slope of Blanchard Citrus Grove, near Santa Paula, Cal 750-C-31 undated
Peach Orchard, Dinuba, California. Single furrow 750-C-33 1916 June
Peach orchard, Kerman, California. Furrows supplied from head ditch through galvanized iron pipe 750-C-34 undated
Metal surface pipe used to distribute water in furrows near Ventura 750-C-35 undated
Metal surface pipe used for distribution of water in furrow irrigation 750-C-36 undated
Muscat Vineyard, Fresno County, California. Note earth check- dams 750-C-37 1916 June
Furrows in Orange Grove, Porterville, California 750-C-38 1916 May
Peaches and Grapes Interplanted, Tulare County, Cal. Single Furrow 750-C-39 1916 May
Muscat Vineyard, Fresno County, California. Note lath tube in head ditch 750-C-40 1916 July
Emperor Grapes, Exeter, California. Lath tubes in Head ditch 750-C-41 1916 May
Peach Orchard, Fresno County, California 750-C-42 1916 July
Emperor Vineyard near Exeter, California 750-C-43 1916 May
Thompson Seedless Grapes, Sanger, California. Sandy Loam Soil 750-C-44 1916 June
Galvanized Iron Troughs Carrying Water from the Standpipes, to the Furrows, in the Lieb Walnut Grove, near Cupertino, Santa Clara Valley, California 750-C-45 1914
Row of Automatic Stand Pipes on Contour Citrus Planting of Arlington Heights Fruit Company, above Gage Canal, near Riverside, Cal 750-C-46 1914
Irrigating Grove with a Considerable Slope from Standpipes, in the Glendora Section, California 750-C-47 1914
The First Attempt at Irrigating a Peach Orchard on the Walton farm, near Yuba City, California, by means of an Underground Pipe System 750-C-48 1914
The Contour Planting of the Arlington Heights Fruit Company, Back of Riverside, California, for which Standpipes were shown in the two preceding Pictures 750-C-49 undated
Single Furrows in Muscat Vineyard, Dinuba, Cal. Furrows eight inches deep 750-C-50 1916 May
Peach Orchard, Fresno County, California 750-C-51 1916 June
Furrows in Very Sandy Soil, Merced, California 750-C-52 1916 July
Cherry Orchard of Giant Oak Fruit Company, Farmersville California. Furrow irrigation 750-C-53 1916 May
Prune Orchard Showing Tomatoes as Intercrop on One Side of Ditch and Corn on Other Side of Ditch. Santa Clara Valley, Cal 750-C-56 1916 August
Zigzag Furrows, Lindsay Orange Orchard, California 750-C-57 1916 May
Irrigating Grapefruit Orchard in the Highgrove Section, back of Riverside, California 750-C-58 1914
Irrigating Citrus Orchard with Four Deep Furrows, near Covina, California 750-C-59 1914
Orange Orchard, Orland, California. Furrow System 750-C-60 1916 September
Preventing Waste at Lower Ends of Furrows in Citrus Orchard, near Covina, California 750-C-61 1914
Irrigating Oranges near Bonita District, Los Angeles County, California, with four deep furrows 750-C-63 1914
Irrigating a Young Apple Orchard, in Los Angeles County, California, from an Underground System 750-C-64 1914
Irrigating Citrus Grove near Riverside, California, With Four Shallow Furrows 750-C-65 1914
Irrigating a Peach Orchard on Gravelly Soil, by the Small Basin Method, near Sorosis, California 750-C-66 1914
Four Deep Furrows Ready for Irrigation, in a Southern California Citrus Grove 750-C-67 undated
Irrigating a Young Prune Orchard with Two Deep Furrows, near Yuba City, California 750-C-68 undated
Galvanized Iron Troughs Carrying Water from the Standpipes, to the Furrows, in the Lieb Walnut Grove, near Cupertino, Santa Clara Valley, California 750-C-69 1914
Orange Grove, Lindsay, California. Zigzag Method 750-C-70 1916 May
Peach Orchard, Kerman, California 750-C-72 1916 June
Olive Orchard, Lindsay, California, Showing Zigzag Furrows 750-C-73 1916 May
Furrow irrigation in cherry orchard 750-C-74 undated
Irrigating Cherries in Furrows, Santa Clara Valley, California 750-C-75 1916 August
Muscat Vineyard, Fresno, California. Shows dams very well 750-C-76 1916 June
A Chinese Irrigator Leading Water Down a Furrow in a Citrus Orchard at Fair Oaks, California 750-C-77 undated
Furrows in Peach Orchard, Fresno County, California. Sandy Soil 750-C-78 1916 June
Muscat Vineyard, Clovis, California, prepared for irrigation 750-C-79 1916 June
Redbanks Orchard, Tulare County, California. Furrow System 750-C-82 1916 May
Checking Back to Wet the Dry Spaces in the Tree Rows, in a Southern California Citrus Grove 750-C-83 undated
Galvanized Iron Troughs Carrying Water from the Standpipes to the Furrows, in the Lieb Walnut Grove, near Cupertino, Santa Clara Valley, California 750-C-84 (No neg.) 1914
Galvanized Iron Troughs Carrying Water from the Standpipes to the Furrows, in the Lieb Walnut Grove, near Cupertino, Santa Clara Valley, California 750-C-85 1914
Irrigating Young Muscat Vines, Selma, California. Jap method 750-C-86 1916 June
Furrow Irrigation of Peaches in the Sierra Foothills in Placer County, California 750-C-89 (No neg.) undated
Irrigated Lady Washington Beans on Garfield Robson Farm in Penn Valley Nevada County, 1917 750-C-90 1917 August
Irrigating Artichokes near Half Moon Bay, California 750-C-91 1917 August
Strawberries under Single Row System, Galt, Cal 750-C-92 1915 September 16
Waste at the Lower End of Furrows in the Lieb Walnut Grove near Cupertino, Santa Clara Valley, California 750-C-94 (No neg.) undated
Furrow irrigation of orchards 750-C-95 undated
Irrigating Strawberries, Auburn, California 750-C-96 1915 October 30
Strawberries Between Grape Vines, Florin, Cal 750-C-97 1915 September 18
Irrigating Raspberries, Bowman, California 750-C-98 1915 October 30
Himalaya Blackberries, Pajaro Valley, Cal 750-C-99 1915 August 27
Hillside Strawberry Planting, Auburn, Cal 750-C-100 1915 October 30
Truck Garden Irrigation at Chula Vista. Method of delivery of water to furrows at Chula Vista, San Diego County under Sweetwater System 750-C-101 1918 January
Furrow irrigation of orchards 750-C-102 undated
Portion of Ontario Sewage Farm owned by E.A. Parkford 750-C-103 1918 May 18
Orchard with furrows 750-C-104 undated
Irrigating sweet potatoes, Portuguese Colony, Merced County, Calif 750-C-108 1903 August
Orange orchard irrigation, Southern Calif 750-C-109 undated
"Checking back" to avoid waste in irrigating, North Pomona, Calif 750-C-110 1910
Irrigating Vineyards in Imperial Valley, California 750-C-111 1914 August
Check-back Furrow Irrigation near Covina, California 750-C-112 1910
Furrow irrigation. Irrigating strawberries from Cache Creek on place of A.D. Martinelli, south side of Cache Creek above Nelson's bridge, Calif 750-C-113 1900
Furrow irrigation. Lower ends of furrows in orange orchard near Pomona, Calif. Shows dry surface as irrigation is being completed 750-C-118 undated
Irrigating orange trees, Arlington Fruit Co., Riverside, Calif 750-C-119 undated
Well cultivated citrus grove near Pomona, California 750-C-125 undated
Furrow irrigation. Irrigating celery at Smeltzer, Orange Co., Calif 750-C-126 1911
Curved furrows to "check back" in lemon orchard near San Dimas, Calif. Soil adobe, slope medium 750-C-127 undated
Furrow irrigation. Checking back 750-C-128 undated
Curved furrow irrigation of orchards 750-C-129 undated
Orchard irrigation. Pipe stands, looking along the headline, near Pomona Calif 750-C-131 undated
Concrete pipe and stand system for orchard irrigation near Pomona, Calif 750-C-132 undated
Furrow irrigation of orange orchard 750-C-133 undated
Distributing 30 miners inches of water over a ten acre orange tract from a cement concrete head flume, Riverside, Calif 750-C-135 1903 December
Irrigating peach orchard, Auburn, California 750-C-136 undated
Cultivation with spring-tooth harrow, San Dimas, Calif 750-C-141 1910
Irrigating oranges on the green spot near Redlands, Calif 750-C-144 1914 September
Irrigating oranges near San Dimas, Calif 750-C-146 undated
Zigzag furrows for "checking back" water in orchard near Pomona, Calif. Soil medium. Slope high 750-C-147 undated
Furrow Irrigation, Calif 750-C-150 undated
Irrigating with closed top orchard stand near Redlands, Calif 750-C-151 1914 September
Irrigation of N.F. Johnson's orange orchard, Pomona, Calif 750-C-152 undated
Cross furrow irrigation. Santa Ana, Calif 750-C-153 1919 April
Tapoons in open ditch for cross furrow irrigation in walnut orchard, Tustin 750-C-155 1919
Furrow irrigation. Irrigating young vineyard, Imperial Valley, Calif 750-C-157 1908 June
Orchard Irrigation. Pipe stands - looking along the furrows, near Pomona, Calif 750-C-158 undated
Panorama in the foothill section back of Ontario showing concrete standpipes and flume conveying water to furrows in orange grove 750-C-159 1918 May
Terrace irrigation. Correct method of planting. Maag Ranch, Santa Ana Canon 750-C-160 1919
Use of portable V troughs in orchard irrigation 750-C-169 undated
See: 740-E-43. Furrows on contour grades varying from 1% to 5%, University Farm., No. 1938 750-C undated
Irrigation of Artichokes near Half Moon Bay, California 750-C-172 1919 June
Growing and irrigation of artichokes on Ocean Shore Railroad south of San Francisco 750-C-173 undated
Irrigating Young Orchard from Concrete Pipe System Camino Ridge, El Dorado County 750-C-174 1919 August
Peach orchard near Auburn - furrow irrigation 750-C-175 undated
Furrow irrigation of peach orchard near Fresno 750-C-176 undated
Type of "check back" furrow irrigation on L.A. Walton orchard at Yuba City 750-C-177 circa 1914
One of the First Instances of Furrow Irrigation Noted in Santa Clara valley, California 750-C-178 1914
Muscat Vines - Fresno County. Note small dams 750-C-179 1916 June
Apricot orchard prepared for irrigation. Santa Clara Valley 750-C-181 circa 1921
Irrigation of cherry orchard in Sunnyvale. - Furrow method 750-C-182 (2 negs) 1923 Summer
Irrigating pears - Littlerock Midland Irrigation District 750-C-183 (2 negs) 1924 June 18
Zigzag furrow irrigation, Davis, California 750-C-184 1915
Irrigation of Muir peach orchard at Delhi 750-C-185 1923 Summer
Use of galvanized head pipe in furrow irrigation at Delhi 750-C-186 1923
Irrigating cantaloupes with furrow tubes. Imperial Irrigation District 750-C-187 1931 April
Furrow irrigation of melons in Imperial Irrigation District. Furrow tubes used at head of furrows 750-C-188 1931 April
Sheet metal distributor for furrow irrigation of orchard, L.C.Sackett ranch, mouth of Putah Creek canyon, Winters 750-C-190 1931
Furrow method using slip-joint gated pipe 750-C-191 1930
Metal distributor for furrow irrigation, Sackett place, Winters 750-C-192 1931
Home made distributor for furrow irrigation of orchard, Sackett ranch, Winters 750-C-193 1931
Irrigating dates, Hoyt Ranch, Coachella Valley 750-C-194 1932 February 29
Hillside irrigation of young citrus orchard. Furrow irrigation 750-C-195 undated
Corrugation method of irrigation, alfalfa Frank. Near Wenatchee, Wash 750-C-196 1932 June
Furrow irrigation of citrus in Highlands area 750-C-197 1932 May
Furrow irrigation from concrete distributing flume. East Redlands area 750-C-198 1932
Furrow irrigation 750-C-199 undated
Distributing flume, furrow irrigation 750-C-200 undated
Distributing flume, furrow irrigation 750-C-200 undated
Furrow irrigation scenes near Yakima, Washington. (5 views) 750-C-201 1932
Furrow irrigation of citrus near Santa Ana 750-C-202 1932
Irrigation with closed stand and four furrows to a tree row, near Santa Ana 750-C-203 1932
Irrigation with curved furrows near Santa Ana 750-C-204 1932
Furrow irrigation, near Pomona 750-C-206 1932 July
Two-furrow irrigation of orange orchard near East Highlands, Calif 750-C-207 1932
Four furrow irrigation of oranges, near East Highlands, Calif 750-C-208 1932
Furrow irrigation of oranges, near Arlington, Calif 750-C-209 1932
Furrow irrigation of grapes, near Cucamonga, Calif 750-C-210 1932
Four-furrow irrigation of oranges near Bloomington 750-C-211 1932
Three-furrow irrigation of oranges near Redlands 750-C-212 1932
Furrow irrigation of walnuts near El Monte 750-C-214 1932
Three-furrow irrigation of oranges looking up from lower end of irrigation stream 750-C-215 1932
Upper end of furrows shown in 750-C-215 (Three furrow irrigation of oranges) 750-C-216 1932
Furrow irrigation. Orchard Mesa Irrigation District, Colorado. 1929 750-C-217 1929
Furrow irrigation of apples near Yakima, Washington 750-C-218 1932 May
Furrow irrigation in orchard near Santa Ana, California 750-C-219 1932
Furrow irrigation of oranges from capped stands. Property S.E. of intersection of Victoria Ave., and Grace St., Arlington Heights, Calif 750-C-220 1938 December 6
Furrow irrigation in Field S-3, Citrus Experiment Station, Riverside. (Panel 3, picture3, Irrigation Exhibit, San Francisco Fair, 1939) 750-C-223 1938 November 8
Furrow irrigation, date grove, Coachella Valley. (Panel 1, lower left. Irrigation Exhibit, San Francisco Fair 1939) 750-C-224 undated
(1) C.A.Taylor's broad furrows in walnut orchard at Pomona. (2) Constructing broad furrows 750-C-225 1939 May
Cache Creek Flood Discharge at Yolo and near Lower Lake 750-C-226 1943 May
Furrow irrigation - Santa Clara, Calif 750-C-227 undated
Untitled 750-C-228 undated
Square Checking, Field of W.A. Scott, Dixon, California 750-D-1 1916 March 9
Irrigating alfalfa Frank, Sacramento Valley Irrigation Experimental Tract, Willows, California 750-D-2 1915 August 17
Muscat vineyard, Clovis, California. Sandy soil, level. Two vines per check 750-D-5 1916 June
Muscat Vineyard, Fresno County, California 750-D-6 1916 June
Another Case of Basin Irrigation in Santa Clara Valley, California 750-D-8 1914
Flooding Peaches in Checks near Parlier, California. White Ash Soil 750-D-9 1916 June
Flooding one tree per check, Kerman, California 750-D-10 1916 June
Olive Orchard of A.J.MacDonald, at Corning, California 750-D-11 1916 August
This and Picture No. 750-D-18 show the turning of a Ten Second-Foot Head into an alfalfa Check, in the Turlock Irrigation District, Cal 750-D-12 1914
Check Method, Peaches, Bowen Orchard, Modesto, Cal 750-D-13 1916 July
Irrigating Nursery Stock, Madera, California 750-D-15 1916 July
Trees on Levees, Fresno County, California 750-D-16 1916 June
Flooding one tree in a check, Fresno County, Cal. (Parlier) 750-D-17 1916 June
Check Method of Irrigating Peaches, Bowen Orchard, Modesto, California 750-D-18 1916 July
Flooding two trees per Check, Tulare County, California 750-D-19 1916 May
Check Method of Irrigating Prunes in Santa Clara Valley, California 750-D-20 1916 August
Flooding peaches in Checks, Selma, California. One tree per check 750-D-21 1916 June
Trees on levees, Fresno County, California 750-D-22 1916 June
Orange Orchard, Fresno County, Cal. Thermal Belt 750-D-23 1916 June
Peach Orchard, Tulare County, California. Hunt Bros. Note concrete headstands 750-D-24 1916 May
Border Checks, Peach Orchard, Tulare County, Cal. Hunt Bros 750-D-25 1916 May
How a Basin Irrigated Orchard Looks a Day or Two After the Water is Turned Off 750-D-26 undated
Basin Irrigation, near Yuba City, California. Hindu Irrigator at the Shovel 750-D-27 undated
This and Picture No. 750-D-12 Show the Turning of a Ten Second-Foot Head into an alfalfa Check, in the Turlock Irrigation District, Cal 750-D-28 1914
A Peach Orchard near Yuba City, California, Shortly After Having Been Irrigated by the Basin Method 750-D-29 1914
Check Method Irrigating Peaches, Bowen Orchard, Modesto, California 750-D-33 1916 July
Flooding 20 trees per check, Alta District, California. Note lath tube in foreground 750-D-34 1916 June
Flooding Two Trees per Check, Fresno County, Cal 750-D-36 1916 June
Double Basins in a Sloping Gravelly Orchard in the Glendora Region, Los Angeles County, Cal 750-D-37 1914
Plot No. 5, Muir Peach orchard, Davis. Irrigation at time of blossoming. Sufficient water applied to raise upper six feet of soil to field capacity 750-D-38 1918 April 2
Mulched basin system of irrigation 750-D-39 (No neg.) 1919 February
Mulched basin system of irrigation used by Office of Biophysical Investigation of the B.P.I. at Chula Vista on the property 750-D-40 (No neg.) 1918 Feburary
Irrigating oranges with small basins, Riverside 750-D-41 1915 July
Basin system of irrigating apricots in the Santa Clara Valley, Calif 750-D-42 1903 December
Basin system of orchard irrigation on T.J. Baty's ranch, north side of Cache Creek above Nelson's bridge. Water coming from Cache Creek by means of pump. Calif 750-D-43 1900
Basin irrigation of apricot orchard (Santa Clara Valley) 750-D-44 undated
Check system, spreading water, Tulare, Calif 750-D-45 1904
Peach orchard, Parlier, flooding in checks, one tree per check 750-D-47 1916
Check system for irrigating potatoes 750-D-48 1903 August
Flooding by small checks, Tulare, Calif 750-D-50 1904
Orchard Irrigation, California 750-D-55 undated
Basin irrigation, Calif. Pumping from Cache Creek on ranch of Robt. Morrison on Cache Creek above Nelson bridge 750-D-56 1900
Basin irrigation of olive trees, Fresno, Calif 750-D-57 undated
Flooding alfalfa with border method Imperial Water Co. #8 750-D-60 1913 December
Basin irrigation on Currier Tract near Pomona, Calif. Soil, adobe 750-D-61 undated
Waste water from border irrigation, Imperial Valley, Calif 750-D-62 undated
Irrigation on Richards Ranch, near Holtville, Imperial Valley, California 750-D-63 (No neg.) 1911
Irrigating alfalfa near El Centro, California 750-D-65 1911
Winter irrigation of Prune orchard Santa Clara Valley 750-D-70 1919 February 18
Water Holding Capacity of Soils 750-D-73 1920 August
Orchard irrigation Santa Clara Valley 750-D-74 1920 March
Land in Santa Clara Valley prepared for winter irrigation, by a rough combination of check and flooding systems 750-D-75 1918 December
Mulched basins, San Diego County 750-D-76 1919 January
Henley almond orchard, Davis, Calif. Check system of irrigation, (Print used for ms. "Some suggestions concerning the irrigation of almond orchards." To be pub "Almond Facts" May 20, 1942 Veihmeyer, Frank J. and A.H. Hendrickson) 750-D-78 1918
Irrigation of prunes in Santa Clara Valley 750-D-79 1920
Irrigating prunes. Pollard orchard. Santa Clara Valley. Basin irrigation 750-D-81 1920
Basin irrigation, University Farm. A tier of trees being irrigated- shows several basins being filled and closed. The middle row of each plot contains the trees from which data are taken upon which to base the conclusions as to the effect of the differential irrigation treatments. These trees are guarded on all sides, but the adjacent guard trees receive the same amount of water as the measured tree 750-D-82 1923 October 5
Basin irrigation. University Farm 750-D-83 1923 October 5
Basin irrigation of apricots. Deciduous Fruit Experiment Station, Mountain View, Cal 750-D-85 1921
Cherry orchard irrigation. Furrow irrigation 750-D-86 undated
Using short length of canvas hose attached to alfalfa gate - Delhi experimental tract 750-D-87 circa 1922
Attaching canvas hose to alfalfa gate, Delhi Experimental tract 750-D-88 1921 May 7
Appliance to prevent settlement of sand in mulch basin irrigation 750-D-89 1919 January
Appliance for prevention of sand settling in mulch basin irrigation 750-D-90 1919 January
Apparatus designed by Frank M. Eaton of Chula Vista to prevent the deposit of sand when the mulch basin system of irrigation is used 750-D-91 1919 January
Delivering water from alfalfa gate to checks through canvas hose. Delhi Irrigation Experimental tract 750-D-92 1921 May 7
Irrigating alfalfa check - from alfalfa gate - Delhi 750-D-93 undated
Irrigating alfalfa by border check method. Turlock Irrigation District 750-D-94 1929 August
Basin irrigation of apricots in the Santa Clara Valley. Supply ditches in alternate rows 750-D-95 undated
Contour checks in orchard peach. Sutter Basin, Calif 750-D-96 1932
Checking of soils in orchard basins - Davis 750-D-98 1938 August 19
Hilg. 2(6):125-291. Jan., 1927. Some factors affecting the irrigation requirements of deciduous orchards. By Veihmeyer, Frank J.. Fig. 3. Irrigation of orchard No. 4, Nov. 1, 1920. The same amount of water is applied in basins around each tree, insuring a uniform distribution of moisture. (See: 116.5.6 Mss., title above, for print) 750-D-98 1920 November 1
Irrigating prunes in single basins, Santa Clara Valley investigations by C.V. Givan 750-D-100 Approx. 1934
Basin irrigation of walnuts. Lowest basin in tier filling. Davis farm 750-D-101 1947 May 14
Basin irrigation of prunes. University Farm, Davis 750-D-102 1947 May 14
Basin irrigation of walnuts, University Farm, Davis 750-D-103 1947 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-104 1951 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-105 1951 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-106 1951 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-107 1951 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-108 1951 May 15
Border Irrigation, Jerry Fielder Ranch, Dixon, California 750-D-109 1951 May 15
Border irrigation, Jerry Fielder ranch, Dixon, California 750-D-111 1951 May 15
Border irrigation, Hunze ranch, West of Dixon 750-D-112 1950 September
Border irrigation, Hunze ranch, West of Dixon 750-D-113 1950 September
Check levee near Keranz - Australia 750-D-114 1907 December 19
Woodland, Calif. Flooding alfalfa in Borders 750-D-115 1900
Flooding Black Burn Tract, Fresno, Calif 750-D-116 1907 June
Plots in the erosion experiment, Northwest Erosion Experiment Station, near Pullman, Washington 796-D-c-1 1932
a. View from N.E. corner. Plot 3 below b. View from 100' west of plot 1 looking west. Plots 3. Erosion and runoff studies, Shasta Co. c. Plot 3. Before burning. View from 100'+/- west of plot 1. d. Plot 3. Before burning. View from S.W. corner. No.2 plot below arrow 796-D-c-2 1936 November 20 - 1936 November 21
Erosion and runoff studies on burned and unburned experimental plots, Shasta co 796-D-c-3 1936 November 20 - 1936 November 21
Erosion and runoff studies on burned and unburned experimental plots, Shasta county 796-D-c-4 1936 December 8
Shasta county. Plot 2. Runoff and erosion, burned and unburned areas exp. Silt trap and weir for measuring runoff and erosion on burned and unburned 796-D-c-5 1936 December 14
Erosion and runoff studies on burned and unburned experimental plots, Shasta County 796-D-c-6 1936 December 8
Erosion and runoff studies on burned and unburned experimental plots, Shasta county 796-D-c-7 1936 December 8
Runoff and erosion studies on burned on burned and unburned areas, Shasta county. Plot 1. Recording rain gauge 796-D-c-8 1936 December 14
Runoff and erosion studies on burned and unburned areas, Shasta county. Plot 2. Showing method of sampling silt content from over-pour from weir 796-D-c-9 1936 December 13
Runoff and erosion studies on burned and unburned areas, Shasta county. Plot 2 796-D-c-10 1936 December 14
Runoff and erosion studies on burned and unburned areas, Shasta county. Plot 3. Showing plots outlined with boards and with runoff and erosion measuring devices installed 796-D-c-11 1936 December 14
Runoff and erosion studies on burned and unburned areas, Shasta county. Plot 3. Showing detail of surface of burned plot 796-D-c-12 1936 December 14
Runoff and erosion studies on burned and unburned areas, Shasta county. Plot 3. Showing detail of surface burned and unburned plots 796-D-c-13 1936 December 14
Burned and unburned experiment, Shasta county. Plot 2. Burned area. Looking H.E. Plot 2. Weir box 796-D-c-14 1937 January 24
Burned and unburned experiment, Shasta county 796-D-c-17 1937 January 24
Burned area, Plot 1. White spots caused by deer licking ground. Plot 1 contained from 12 to 15 of such spots on this date 796-D-c-18 1937 May 15
Range management plots, Shasta Co. Attempt to show growth on burned strips which was more noticeable than on the unburned strips, but the photograph does not bring this out clearly. Plot 3 burned area 796-D-c-19 1937 March 14
Plot 4 B from South edge. Recovery of grass and other small plants. Shasta County 796-D-c-20 1938 January 23
Plot 2B. Recovery of grass and other small plants. Shasta County 796-D-c-21 1938 January 23
Plot 1, burned, Sept. 1938. Range Management Experiment, Shasta Co 796-D-c-22 1938 September
Range Management Experiments, Shasta Co. Plot 3, burned 796-D-c-24 1938 September
Range Management Experiment, Shasta Co. Plot 4, burned 796-D-c-25 1938 September
Plot 1 Range Management Experiment, Shasta County. View N.W. across burned area. Strip at right-hand side fertilized by Dr. Madsen 796-D-c-26 1938 May 21
Range Management Experiment, Plot 2, Shasta County. View N.W. across burned area. Shows grass recovery 796-D-c-27 1938 May 21
Range Management Experiment, Shasta County, Plot 3, burned. Looking along bottom edge of plot northward, shows grass 796-D-c-28 1938 May 21
Range Management Experiment, Shasta County. Plot 3, burned. View N.W. across plot. Shows grass 796-D-c-29 1938 May 21
Range plots, Shasta county 796-D-c-31B 1939 May 1
(1) San Dimas Forest and Range Experiment Station lysimeter installation. (2) Small lined silt detention reservoir and measuring station for measuring runoff and silt loss from watersheds 796-D-c-32 1939 May
(1)(2) General views of San Dimas Forest and Range Experiment Station 796-D-c-33 1939 May
Ono Range Experiment. A area. Burned Sept. 1938. Looking south toward Plot 4 which is cleared space in the background 796-D-c-34 1939 April 23
Ono Range Experiment. In A area, showing growth of grasses following removal of competition of chamise 796-D-c-35 1939 April 23
Ono Range Experiment. In A area burned Sept. 1938. East slope of Duncan Creek. Sprouts from burned chamise and soap weed 796-D-c-36 1939 April 23
Ono Range Experiment. Burned part of Plot 2. Grasses and soap weed. Note absence of chamise 796-D-c-37 1939 April 23
Ono Range Experiments. In area A. Burned Sept. 1938. Chamise sprouting after burn. Indicated heavy cover before burn 796-D-c-38 1939 April 23
Ono Range Experiment. In area A. Burned Sept. 1938. B.A. Madson standing in growth of wild oats which came in following burn 796-D-c-39 1939 April 23
Ono Range Experiments. Looking north from Plot 4, Area A burned in Sept. 1938 on left. Area B burned in 1933 on right 796-D-c-40 1939 April 23
Ono Range Experiment. In A area. Burned Sept. 1938. Looking north from open grassy area near top of trail 796-D-c-41 1939 April 23
Ono Range Experiment. Area A burned Sept. 1938 796-D-c-42 1939 April 23
Ono Range Experiments. A area burned 1938, September on left, and B area burned 1933 on right. North fence of experimental area is along ridge. Taken from near top of trial area A, looking north 796-D-c-43 1939 April 23
Ono Range Experiment. In area burned Sept. 1938. A area. Looking north from open grassy area near top of trail 796-D-c-44 1939 April 23
Ono Range Experiments. Plot 4. Looking south 796-D-c-45 1939 April 23
Ono Range Experiment. Plot 3 -- taken from Plot 1 796-D-c-46 1939 April 23
San Dimas Experimental Forest 796-D-c-47 1938 December 18
Colorado river trip 796-D-c-50 1939 July 28
Intermountain Forest and Range Experiment Station, Wasatch National Forest 796-D-c-51 1939 July 28
Colorado river trip. Intermountain Forest and Range Experiment Station, Wasatch National Forest, Utah 796-D-c-52 1940 July 28
Range studies. Cold Fork plots, Tehama county/ Pettijohn ranch, 30.2 mi. west of Red Bluff. Chamise with a little manzanita. Type of soil not known 796-D-c-53 1940 September 14
Range studies. Cold Fork plots, Tehama county/Pettijohn ranch, 30.2 mi. west of Red Bluff. First set of samples on bare plot just after clearing. Paul R. Day 796-D-c-54 1940 September 25
Range studies. Button Canyon plots. Tehama county. Chamise. Hugo soil 796-D-c-55 1940 September 14
Range studies. Button Canyon plots, Tehama county. Clearing bare plot. Paul R. Day in center 796-D-c-56 1940 September 25
Range studies. Diamond Range, plots/Tehama county, about 24 mi. west of Red Bluff. Hugo soil. Pines, oak, manzanita 796-D-c-57 1940 September 14
Range studies. Plum Creek manzanita plots, Tehama county. Volcanic soil. Manzanita thicket. Mr. Apple's ranch 796-D-c-58 1940 September 14
Range studies. Plum Creek Ceanothus plots, Tehama county . On hill on which Inskip Lookout Station is located. "Gleason" soil, almost Aiken but lighter. Manzaita and Ceanothus cuneatus 796-D-c-59 1940 September 14
Range studies. Holland plots, Shasta county, 3.1 miles east of Igo. Holland soil. Manzanita, oak, and pine. Oak in upper left corner is on southwest corner of brushed area 796-D-c-60 1940 September 15
Range studies. Oregon oak Aiken plots, east of Reddings, Shasta county 796-D-c-61 1940 September 15
Range management studies. View of burned portion of plot 1. Ono, Shasta county, Calif 796-D-c-65 1940 April 6
Range management studies. View of burned portion of plot 3. Ono, Shasta county, Calif 796-D-c-67 1940 April 6
Range management studies. View of burned portion of plot 4. Ono, Shasta county, Calif 796-D-c-68 1940 April 6
Range Management studies. Shasta and Tehama counties 796-D-c-69 1940 November 16
Range Management studies. Shasta and Tehama counties 796-D-c-70 undated
Range management studies. Shasta and Tehama counties 796-D-c-72 1940 November 16
Plot No. 1, Ono Range Studies Viets, Madson, Hart, Hutchison, Ryerson 796-D-c-73 1941 April 4
Plot No. 2 Ono April 4, 1941 Range Studies 796-D-c-74 1941 April 4
Plot No. 3 Ono April 4, 1941 Range Studies 796-D-c-75 1941 April 4
Range Studies Plot No. 4 Ono April 4, 1941 796-D-c-76 1941 April 4
Range Studies Corning Plot East of Redding April 4, 1941 796-D-c-77 1941 April 4
Oregon Oak Plot April 4, 1941 Range Stuides Neal Derrick, Frank Viets, Dean Hutchison, Dean Ryerson 796-D-c-78 1941 April 4
Range Studies Redding Plot East of Redding April 4, 1941 G. Hart, B. Madson, Lester Berry, Neal Derrick, Dean Hutchison 796-D-c-79 1941 April 4
Inskip Plot East of Red Bluff April 5, 1941 Range Studies Dean Hutchison, B.A. Madson, K.A. Ryerson, Frank Viets 796-D-c-80 1941 April 5
Range Studies Gleason Ceanothus Plot East of Red Bluff April 5, 1941 796-D-c-81 1941 April 5
Manzanita Gleason Plot East of Red Bluff April 4, 1941 Range Studies 796-D-c-82 1941 April 5
Inskip Plot June 24, 1941 Range Studies 796-D-c-83 1941 June 24
Range Studies Manzanita Gleason 796-D-c-84 1941 June 24
Range Studies Manzanita Leason Plot 796-D-c-85 1941 June 24
Range Stuides Profile for Corning soil looking across out from top of hill where Corning plot is located 796-D-c-87 1941 June 24
(a) Range Studies Cleared path for Pole line--near Begum grass growing where Chamise bushes have been removed--looking west. (b) Growth of grass in cleared area for power line Begum in distance Chamise cover--looking east 796-D-c-89 1941 June 25
Range Studies Gleason Ceanothus Plot 796-D-c-90 1941 June 24
Range Studies Ono Plot 1 Burned plot left; unburned plot right; shows lack of grass due to competition of chamise 796-D-c-91 1941 June 25
Range Studies Ono Plot No. 1 796-D-c-92 1941 June 25
Range Studies Mountain Lotus growing in burned plot No. 1 Ono 796-D-c-93 1941 June 25
Range Studies Button Canyon Plot 796-D-c-95 1941 June 25
Range Studies Diamond Range Plot 796-D-c-96 1941 June 25
Range Studies Holland Plot 796-D-c-97 1941 June 25
Range Studies. Cold Fork, Tehama county 796-D-c-98 1941 September 25
Range Studies. Menzel south plots, Shasta county 796-D-c-103 1941 September 26
Range Studies. Inskip plot. Tehama County 796-D-c-104 1941 September 27
Range studies. Manzanita Gleason, east of Red Bluff 796-D-c-106 1941 September 27
Range studies. Ceanothus Gleason plots, Tehama County 796-D-c-107 1941 September 27
1 cu. ft. tilt bucket constructed by C.N. Johnston for range studies 796-D-c-108 1941 October 5
5 cu. fit. tilt bucket constructed by C.N. Johnston for range studies 796-D-c-109 1941 October 5
(a) Button Canyon burned: Shows clean area for runoff and runoff assembly to S.E. of plot. (b) Shows surge tank and water meter. Latter 3/4" left of border of picture and a 1 1/4" from top. (c) Button Canyon Covered: Shows runoff assembly. View W. Water meter below tank to left 796-D-c-110 1941 December 6
(a) Holland unburned. Shows runoff set-up 2nd at R.H. density of cover. Water meter below tank. (b) Holland unburned. Shows 10" Hume and settling box at low corner of plot. Also shows rain gauge in upper center of picture behind underbrush. View S.W 796-D-c-111 1941 December 6
(a) Holland burned: shows clean runoff area as well as take off units for runoff recording assembly. View W. (b) Holland burned. Shows runoff assembly complete. Water meter below tank 796-D-c-112 1941 December 6
Redding Plot, East of Redding. Range Studies 796-D-c-117 1941 December 20
Range Studies. Manzanita Gleason Plot, East of Red Bluff 796-D-c-118 1941 December 23
Range Studies. Ceano, Gleason Plot, Tehama County 796-D-c-119 1941 December 23
Range Studies. Inskip Plot, East of Red Bluff 796-D-c-120 1941 December 23
Range Studies. Oregon Oak Plot. Vegetation removed in Sept. and Oct 796-D-c-121 1941 December 22
Range Studies. Menzel South Plot, Shasta County. Vegetation removed in Sept. and Oct 796-D-c-122 1941 December 22
(a)The head board on one of the runoff and erosion plots, Vaile Ranch, Riverside county. (b)Pillsbury standing at edge of clearing next to runoff and erosion areas indicating height of brush, Vaile Ranch 796-D-c-124 1942 January 15
(a)View from road looking at hillside towards runoff and erosion plots. Notice J.E. Christiansen and Pillsbury at the corners of the plots. (b) Cleared plot for soil sampling. Pillsbury in background, Vaile Ranch Riverside County 796-D-c-125 1942 January 15
One of the silt collecting boxes on runoff and erosion plots, Vaile Ranch, Riverside, Calif 796-D-c-126 1942 January 15
Runoff and erosion plots. Inskip plot. Tehama County 796-D-c-127 1942 April 23
Runoff and erosion studies. Manzanita Gleason, east of Red Bluff 796-D-c-128 1942 April 23
Runoff and erosion studies. Ceanothus Gleason plots, Tehama County 796-D-c-129 1942 April 23
Runoff and erosion studies. Ono plot 1 796-D-c-130 1942 April 24
Runoff and erosion plots. Menzel South Plot, Shasta County 796-D-c-132 1942 April 24
Runoff and erosion studies. Button Canyon Plot, showing runoff assembly 796-D-c-133 1942 April 24
Runoff and erosion studies. Diamond Range Plot 796-D-c-137 1942 April 24
Range Experimental plot. Diamond Range, 8/13/42 796-D-c-139 1942 August 13
Range Experimental Plot. Redding 796-D-c-140 1942 August 14
Range Experimental Plot. Manzanita Gleason, 8/14/42 796-D-c-141 1942 August 14
Range Experimental Plot. Manzanita Gleason 796-D-c-142 1942 August 14
Range Experimental Plots. Diamond Range, West watershed 796-D-c-143 1943 January 7
Range Experimental Plots. Manzanita Gleason No. 3 796-D-c-144 1943 January 8
Range Experimental Plot. Holland 796-D-c-145 1943 January 7
Range Experimental Plot. Ono, No. 1 796-D-c-146 1943 January 7
Range Experimental Plot, Ono No. 2 796-D-c-147 1943 January 7
Range Experimental Plot, Diamond Range 796-D-c-148 1943 January 7
Range Experimental Plot, Button Canyon 796-D-c-149 1943 January 7
Range Experimental Plot, Menzel North 796-D-c-150 1943 January 7
Runoff and erosion plots, U.S.D.A. Soil Conservation Service Hill Culture Project, Capistrano, California 796-D-c-151, s undated
a. One of the small drainage areas, Vaile Ranch, Riverside County. b. Plot on Vaile Ranch, Riverside County, burned in 1941. c. Plot established by Pillsbury, Feb. 1943, on Vaile Ranch in area burned Oct. 1942 796-D-c-152 1943 March 2
Range Experimental Plot. Gleason 796-D-c-153 1943 April 20
Range Experimental Plot. Inskip 796-D-c-154 1943 April 20
Range Experimental Plot. Menzel North 796-D-c-155 1943 April 21
Range Experimental Plot. Holland 796-D-c-156 1943 April 21
Range Experimental Plot. Diamond Range 796-D-c-157 1943 April 22
Range Experimental Plot. Oregon Oaks 796-D-c-158 1943 April 22
Range Experimental Plot. Corning 796-D-c-159 1943 April 22
Range Experimental Plot. Diamond Range 796-D-c-160 1943 April 23
Range Experimental Plot, Button Canyon, covered. Regulating tank for water meter to measure runoff from covered plot. Notice water meter in lower right-hand corner. View from below 796-D-c-161 1943 April 23
Range Experimental Plot, Button Canyon, covered. Regulating tank for water meter to measure runoff from covered plot. View from above 796-D-c-162 1943 April 23
Range Experimental Plot, Button Canyon. Burned plot on right. Notice effect of competition by the brush on growth of grass. Compare with 796-D-223 and 796-D-224 views of burned plots 796-D-c-163 1943 April 23
Range Experimental Plot. Button Canyon. 4/23/43. See 796-D-222 796-D-c-164 1943 April 23
Range Experimental Plot. Button Canyon. See 796-D-222 796-D-c-165 1943 April 23
a. Plot No. 1, Ono, showing lack of growth of grass due to competition. b. Plot No. 2; c. Plot No. 3, looking north from No. 1; d. Plot No. 4 796-D-c-166 1943 June 11
a. Bare plot, Holland, 6/11/43 b. Diamond Range, 6/13/43 796-D-c-167 1943 June 11,
a. Range Experimental Plot, Ono No. 1, 10/13/43 b. Ono No. 4 796-D-c-168 1943 October 13
Range Experimental Plot, burning Diamond Range 796-D-c-169 1943 October 13
Button Canyon Plot just after burning 796-D-c-170 1943 October 13
Gleason No. 3, Experimental Range Plot, Just after burning 796-D-c-171 1943 October 12
Range Management Investigations. Ono plot #3 just after burning 796-D-c-172 1943 October 13
Range management investigations. Oregon Oaks plot just after burning 796-D-c-173 1943 October 14
Range management investigations. Oregon Oaks Plot just after burning 796-D-c-174 1943 October 14
Range management investigations. Button Canyon Plot, wash of litter on covered plot; indicates considerable runoff 796-D-c-175 1944 March 8
Range management investigations. Button Canyon plot at time infiltration tests made 796-D-c-176a,b 1944 March 8
Range management investigations. Oregon Oaks Plot, infiltration tests with rim infiltrometer 796-D-c-177a,b 1944 March 9
Range management investigations. Diamond Range, showing how cows have tramped on denuded plot 796-D-c-178 1944 March 8
Range management investigations. Ono Plot #2, just after burning 796-D-c-179a,b 1943 October 13
Range management investigations. Holland plot just after burning 796-D-c-180 1943 October 13
Range management investigations. Oregon Oaks Plot 796-D-c-181 1944 May 10
Range management investigations. Ono Plot #4 796-D-c-182 1944 May 10
Range management investigations. Holland Plot 796-D-c-183 1944 May 10
Range management investigations. Gleason Plot #3 796-D-c-184 1944 May 9
Range management investigations. Diamond Range Plot looking down slope 796-D-c-185a,b 1944 May 9
Range management investigations. Button Canyon Plot, lack of grass along border shows effect of competition by chamise 796-D-c-186 1944 May 10
Range management investigations. Button Canyon Plot 796-D-c-187 1944 May 9
Range management investigations. Ukiah plot #1 796-D-c-188 1946 October 26
Range management investigations. Lake Plot #1 796-D-c-189 1944 October 26
Range management investigations. Ukiah Plot #1 796-D-c-190 1944 October 26
Range management investigations. Lake Plot #1 796-D-c-191 1944 October 26
Range Management Investigations. Gleason #3 796-D-c-192 1945 April 11
Range Management Investigations. Gleason #3 796-D-c-193 1945 April 11
Range Management Investigations. Button Canyon 796-D-c-194 1946 April 12
Range Management Investigations. Diamond Range Plot 796-D-c-195 1946 April 12
Range Management Investigations. Lake Plot No. 1 796-D-c-196 1946 March 22
Range Management Investigations. Lake Plot No. 1 796-D-c-197 1946 March 22
Range Management Investigations. Lake Plot No. 1 796-D-c-198 1946 March 22
Range Management Investigations. Ukiah Plot No. 1 796-D-c-199 1946 March 22
Range Management Investigations. Soap weed and grass on Ukiah Plot 796-D-c-200 1946 March 22
Range management investigations. Ukiah #1 just before burning 796-D-c-201 1946 October 1
Range management investigations. Ukiah #1 just after burning 796-D-c-202 1946 October 1
Range management investigations. Madera No. 1 796-D-c-203 1947 January 7
Range management investigations. Madera No. 1 796-D-c-204 1947 January 7
Range management investigations. Madera No. 1 796-D-c-205 1947 January 7
Range management investigations. Madera No. 2 796-D-c-206 1947 January 7
Range management investigations. Madera No. 2 796-D-c-207 1947 January 7
Equipment used in measuring runoff and erosion from burned and covered plots. Preliminary trials before cutting and burning one of the pairs of troughs. Picture taken south of the Irrigation and Hydraulics Laboratory 796-D-c-209 1947 April 29
Range Management Investigations. Holland Plot B 796-D-c-210 1947 January 17
Range Management Investigations. Monterey No. 3, Plot B 796-D-c-211b,c 1947 April 25
Madera No.l Plot B 796-D-c-212 1947 September 26
Madera No. 1 Plot B 796-D-c-213 1947 September 26
Range management investigations. Ukiah No. 1. November 10, 1947 796-D-c-214 1947 November 10
Range management investigations. Ukiah No. 1. November 10, 1947 Before burning 796-D-c-215 1947 November 10
Range management investigations. Lake No. 1, Plot A. November 10, 1947 Showing regrowth 796-D-c-216 1947 November 10
Range management investigations. Lake No. 1, Plot A 796-D-c-217 1947 November 10
Range management investigations. Lake No. 1, Plot B 796-D-c-218 1947 November 10
Range management investigations. Monterey, No. 4. November 17, 1947. After burning 796-D-c-219 1947 November 17
Range management investigations. Monterey, No. 4. November 17, 1947. After burning 796-D-c-220 1947 November 17
Range management investigations. Monterey, No. 4. November 17, 1947. Before burning 796-D-c-221 1947 November 17
Range management investigations. Monterey No. 4. November 17, 1947. Before burning 796-D-c-222 1947 November 17
Range management investigations. Monterey No. 3. November 17, 1947. After burning 796-D-c-223 1947 November 17
Range management investigations. Monterey, No. 1. November 18, 1947. Before burning 796-D-c-224 1947 November 18
Range management investigations. Monterey No. 1. November 18, 1947. Before burning 796-D-c-225 1947 November 18
Range management investigations. Monterey No. 1. November 18, 1947. Looking down slope 796-D-c-226 1947 November 18
Range management investigations. Monterey No. 2. November 18, 1947. After burning 796-D-c-227 1947 November 18
Range management investigations. Monterey No. 2. November 18, 1947. Denuding 796-D-c-228 1947 November 18
Range management investigations. Monterey No. 1. November 18, 1947. Before burning, looking into 796-D-c-229 1947 November 18
Range management investigations. Monterey No. 3. November 18, 1947. Before burning 796-D-c-230 1947 November 18
Range management investigations. Lake No. 1, Plot B. January 22, 1948 796-D-c-231 1948 January 22
Range management investigations. Ukiah, Plot A. January 22, 1948 796-D-c-232 1948 January 22
Button Canyon, Sterilized Plot 796-D-c-233 1947 November 6
Sterilized Plot, Button Canyon 796-D-c-234 1947 November 6
Madera 1 B Plot. Looking up the slope 796-D-c-235 1948 Summer
Lake No. 1 Plot A 796-D-c-236 1949 January 22
Lake No. 1 796-D-c-237 1949 January 22
Lake No. 1 Plot B looking downhill 796-D-c-238 1949 January 22
Ukiah Plot B looking northeast. Lack of vegetation 796-D-c-239 1949 January 22
Ukiah Plot B looking southeast. Note lack of vegetation 796-D-c-240 1949 January 22
Ukiah B plot looking East 796-D-c-241 1949 January 22
Ukiah Plot B. No vegetation looking southwest 796-D-c-242 1949 January 22
Ukiah Plot B from S.W. view looking Northeast. Lack of vegetation 796-D-c-243 1949 January 22
Madera 1 B 796-D-c-244 1949 February 12
Monterey No. 2 Plot B looking northeast. Nothing growing at this time 796-D-c-245 1949 February 12
Monterey No. 1 B Plot Nothing growing at this time. Looking east 796-D-c-246 1949 February 12
Madera No. 1 A Plot 796-D-c-247 1948 October 23
Monterey Watersheds - A and B. "A" on right (Southeast) "B" on left (Northwest) 796-D-c-248 1949 February 12
Monterey Watersheds A and B. A on right (Southeast) B on left (Northwest) 796-D-c-249 1949 February 12
Monterey Plot No. 4 796-D-c-250 1949 February 12
Monterey Plot #4 796-D-c-251 1949 February 12
Ono plot No. 3. This area was burned annually since 1936, except for the past two years. Note that the area supports a uniform stand of grasses. This has been an unfavorable growing season for grasses, yet the yield here is very good 796-D-c-252 (No neg) 1949 June 28
Ono Plot No. 2, plot A, showing the depth of erosion between chamise clumps. The chamise was cut and burned November 19, 1948 796-D-c-253 1949 June 28
Holland, B plot, Shasta County. Note the good stand of grasses, even during this season unfavorable to plant growth 796-D-c-254 1949 June 28
Ono plot No. 4 796-D-c-255 1949 June 28
Menzel North plot, Shasta County, Aiken soil 796-D-c-256 (No neg) 1949 June 28
Ono plot No. 1. The grass is in the middle of the 50x50 ft. square plot. Around the borders for a distance of 15 ft. or so the area is kept bare from competition from the chamise brush for soil moisture 796-D-c-258 1949 June 28
Madera No. 1, Plot B 796-D-c-259 1948 December 23
Bulkhead at flume entrance, Tulare watershed A 796-D-c-260 1949 December 29
Tulare Plot A. Catch trough at lower side of plot 796-D-c-261 1950 October
Tulare Plot A. Border boards and cans to catch rainfall from trough gages 796-D-c-262 1950 October
Spring Dell, San Benito County. Upper right brush area Plot E, Uncovered area Plot D, left burned area Plot C 796-D-c-263 1950 March 9
Spring Dell Plots, San Benito County. Brush area in upper picture Plot E, open area in Plot E shows rain gages, uncovered area on hill Plot D 796-D-c-264 1950 March 9
Tulare Range A. Taken from lower west ridge of watershed, center of watershed in center of picture, fence line running over hill 796-D-c-265 1950 March 9
Tulare Range B, taken from west ridge across watershed to east ridge. Rock outcrop in upper right 796-D-c-266 1950 March 9
Tulare Range B, tilt bucket, tank, and flume. Water stage recorder on side of tank 796-D-c-267 1950 March 9
Tulare Range A. Tilt bucket, tank and flume. Water stage recorder on side of tank 796-D-c-268 1950 March 9
Tulare Range B. Taken from west ridge up trough of watershed. Rock outcrop in center 796-D-c-269 1950 March 9
Spring Dell, San Benito County. Left burned area Plot C, right Plot B, upper right Plot A 796-D-c-270 1950 March 9
Ukiah Range B 796-D-c-271 1952 March
Ukiah Range B 796-D-c-272 1952 March
Ono Range A 796-D-c-273 1952 March
Ono Range B 796-D-c-274 1952 March
Burning Tulare Plot B 796-D-c-275 1951 October 16
Ahwahnee Range B. Recording Rain gage and thermograph 796-D-c-276 1952 March
Ono Range D 796-D-c-277 1952 March
Ukiah Range A 796-D-c-278 1952 March
Ahwahnee Range B 796-D-c-279 1952 March
Ono Plot 1. Thermograph, recording rain gage, standard rain gage 796-D-c-280 1952 March
Ono Plot 3. Deer feeding on plot 796-D-c-281 1952 March
From unburned area, Range Management Experiment. Shasta Co 796-D-f-1 1934 June 30
From unburned area, Range Management Experiment. Shasta Co 796-D-f-2 1934 June 30
From unburned area, Range Management Experiment. Shasta Co 796-D-f-3 1934 June 30
From unburned area, Range Management Experiment. Shasta Co 796-D-f-4 1934 June 30
From burned area, Range Management Experiment. Shasta Co 796-D-f-5 1934 June 30
Cattle from burned area, Range Management Experiment 796-D-f-6 1934 June 30
From burned area, Range Management Experiment Shasta Co 796-D-f-7 1934 June 30
Cows on unburned area, Range burning experiment, Shasta Co. (3 views) 796-D-f-8 1935 March 23
Cows placed on burned area, Range burning experiment, Shasta County. (3 views) 796-D-f-9 undated
Cattle on unburned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-10 1936 June 14
Cattle on unburned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-11 1936 June 14
Cattle on unburned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-12 1936 June 14
Cattle on unburned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-13 1936 June 14
Cattle on burned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-14 1936 June 15
Cattle on burned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-15 1936 June 15
Cattle on burned area. Range management studies, Duncan Creek area, Shasta county, Calif 796-D-f-16 1936 June 15
a. Roosevelt Highway, Santa Monica. Hills burn in Fall, 1942. No evidence of eroded material back of debris dam. Side of hills in foreground burned. b. Ditch along Roosevelt Highway to catch eroded material from hills to east. Burned in Fall of 1942. Note absence of erosion 796-D-g-1 1943 March 1
c. Burned hills east of and along Roosevelt Highway. Looking upstream from debris, note absence of erosion. d. Ditch built for debris; note absence of eroded material. e. Closeup of ditch to intercept silt from burned area to left, but note lack of eroded material 796-D-g-2 1943 March 1
Burned (Oct. 1942) area in Los Flores Canyon. Both sides of Canyon burned. Burned houses may be seen in both pictures. This area above Roosevelt Highway. See pictures 796-D-209a-e for lack of eroded material in ditches 796-D-g-3 1943 March 1
Average annual temperature(F), Period 1799-1938. Taken from the Yearbook of Agriculture, 1941 p.703. J.B. Kincer 797-A-1 (no print) 1942 January
Average July wet-bulb temperature(degrees F). Taken from the Yearbook of Agriculture, 1941 p. 710. J.B. Kincer 797-A-2 (no print) 1942 January
Temperature departure from normal, in F for a period of maximum circulation. The index at this time was 12.5 millibars. Taken from the 1941 Yearbook of Agriculture p.630 C.G. Rossby 797-A-3 (no print) 1942 January
Convective circulation. Taken from Yearbook of Agriculture for 1941, p.603 C.G. Rossby 797-C-1 (no print) 1942 January
Meriodional (North and South) circulation. Taken from the Yearbook of Agriculture, 1941 p. 603 C.G. Rossby 797-C-2 (no print) 1942 January
The three hemispheric circulation cells. The final cellular meridional circulation on a rotating earth. Taken from the Yearbook of Agriculture for 1941 p. 611, C.G. Rossby 797-C-3 (no print) 1942 January
Influence of the earth's rotation. Taken from the 1941 Yearbook of Agriculture p.607 C.G. Rossby 797-C-4 (no print) 1942 January
Normal seal-level pressure distribution (millibars) over the Southern hemisphere in July. Taken from the 1941 Yearbook of Agriculture p.614 C.G. Rossby 797-C-5 (no print) 1942 January
Normal seal-level pressure distribution (millibars) over the Northern hemisphere in January. Taken from the 1941 Yearbook of Agriculture. p.615 C.G. Rossby 797-C-6 (no print) 1942 January
Polar-front waves. Taken from the 1941 Yearbook of Agriculture. p.632 C.G. Rossby 797-C-7 (no print) 1942 January
Climates of the earth, showing the extent of regions dominated by cold, dry and wet climates unfavorable to settlement. Taken from the 1941 Yearbook of Agriculture p.230 Jan. O.M. Broek 797-D-1 (no print) 1942 January
World population showing concentration of settlement in regions of more favorable climates. Taken from the Yearbook of Agriculture. p.229 Jan O.M. Broek 797-D-2 (no print) 1942 January
Ladino Clover Plot 800-A-3 1954
Ladino Clover Plot 800-A-4 1954
Ladino Clover Plot B 6" 800-A-5 1954
Ladino Clover Plot B 9" 800-A-6 1954
Ladino Clover Plot C 6" 800-A-7 1954
Ladino Clover Plot C 9" 800-A-8 1954
Ladino Clover Plot D 6" 800-A-9 1954
Ladino Clover Plot D 9" 800-A-10 1954
Ladino Clover Plot D 12" 800-A-11 1954
Ladino Clover Plot E 3" 800-A-12 1954
Ladino Clover Plot E 9" 800-A-13 1954
Ladino Clover 800-A-14 1953-1957
Ladino Clover Plot 2C 12" 800-A-15 1953
Ladino Clover 800-A-16 1953
Ladino Clover 3E 8" 800-A-17 1953
Ladino Clover Comparison of Plots B, C, D, E 800-A-18 1953
Ladino Clover Plot B 800-A-19 1953
Ladino Clover Plot B 800-A-20 1953
Ladino Clover Plot C 800-A-21 1953
Ladino Clover Plot C 800-A-22 1953 Davis
Ladino Clover Plot C 800-A-23 1953
Ladino Clover Plot D 800-A-24 1953
Ladino Clover Plot D 800-A-25 1953
Ladino Clover Plot E 800-A-26 1953
Ladino Clover Plot D 800-A-27 1953
Ladino Clover 800-A-28 1953
Ladino Clover Plot E 800-A-29 1953
Ladino Clover Seed Plot C 800-A-33 1954
Ladino Seed Clover Plot C2 800-A-34 1954
Ladino Clover Seed Plot D 800-A-35 1954
Ladino Seed Clover Plot E 800-A-36 1954
Aksike Clover normal vs damaged 800-A-37 1954
Ladino Clover available moisture dep. 70 vs relative yields, green weight 800-A-38 1954
Ladino Clover 800-A-39 1954
Ladino Clover 800-A-40 1954
Ladino Clover 800-A-41 1954
Ladino Clover 800-A-42 1954
Ladino Clover 800-A-43 1954
Ladino Clover 800-A-44 1954
Ladino Clover 800-A-45 1954
Ladino Clover 800-A-46 1954
Ladino Clover 800-A-47 1954
Ladino Clover 800-A-48 1954
Ladino Clover 800-A-49 1954
Ladino Clover 1952 Data 800-A-50 1954
Ladino Clover 1952 Field Data 800-A-51 1954
Ladino Clover 1952 Field Data 800-A-52 1954
Negatives of tables for Ladino Clover Seed Prod. Plot. Abstract effect of irrig. treatments on seed prod. of Ladino Clover - F. Hogan, R. Jones, H. Grove, Petuse published 1957 800-A-53 1954
See waterlogged tanks. 800-L-a-58, 59, 60, 61, 62 800-A-a undated
Use of water by alfalfa grown in tanks, University Farm, Davis. Tanks covered with celotex to reduce evaporation 800-A-a-1 1928
Sacramento Valley Irrigation Experimental Tract, Willows, Cal 800-A-b-1 1915 May 06
Newly planted alfalfa checks with rye on borders - Delhi Irrigation Experimental Tract 800-A-b-2 1921 Spring
Irrigated alfalfa Frank, Sacramento Valley Irrigation Experimental Tract, Willows, Cal 800-A-b-3 1915 August 27
Irrigation of alfalfa plots. Dr. Doneen and irrigator 800-A-b-4 1938 August 20
Weighing Hay Shocks, Willows, Cal 800-A-c-1 1916 May 7
Mucking ditch above weir, Imperial Valley, 1915 alfalfa investigations 800-A-c-2 1915
Scalding alfalfa on lower ends of checks, 1915, Imperial Valley 800-A-c-3 1917
alfalfa field Palo Verde Valley 800-A-c-4 1929
Rice field - Cortena Station. Looking northwest 800-B-a-1 1919
Showing changing water vs. stagnant water - Stagnant plot on left: changing on right 800-B-a-2 1919
Rice Experiments - depth of submergence 800-B-a-3 1919
Changing water - Plot D-10. Experiment Station - Spaulding Ranch 800-B-a-4 1919
Plots A-7 and A-8 - Norman. Land too strong in alkali for rice production 800-B-a-5 1919
University of California temporary rice experiment station, Cortena, California. Sept. 29, 1922. View of Plot #1 seeded and submerged April 15, 1922. Rice seed broadcasted at rate of 150 pounds per acre prior to submergence 800-B-a-6 undated
View of Plot 60. Broadcasted at rate of 150 lbs per acre and submerged continuously. Submerged April 25, 1922 800-B-a-7 1922 September 29
View of rice head just beginning to fill. Most of head in blossom. Plot 60. 9-14-22 800-B-a-8 1922 September 14
Cortena. Check plot drilled at rate of 150 lbs. per acre. Irrigated 5 times to germinate seed and bring plants 4-5 inches high. Plants were submerged 30 days after emergence from the soil 800-B-a-9 1922 September 29
View of Plot #18 at Cortena. This plot was not plowed. The plot was submerged 6 inches and seeded in water at rate of 150 lbs. per acre. Note poor stand of rice and heavy growth of cat tails 800-B-a-10 1922 September 29
Univ. of Calif. Rice Experiment Station, Cortena 800-B-a-11 1922 September 29
Submerging rice plots at Cortena, 1922 800-B-a-12 undated
Rice, Cortena 800-B-a-13 1922
Rice at Cortena 800-B-a-14 1922
Rice, Cortena 800-B-a-15 1922
Rice, Cortena 800-B-a-16 1922
Rice field east of Williams 800-B-a-17 1922
Rice at Cortena, 1922. Plots submerged 30 days after palnts emerged from soil 800-B-a-18 1922
Effect of sedge in Plot 56, Cortena 800-B-a-19 1923 July 26
1/5 acre plot, rice experiment station, Biggs, on which submergence was started 30 days after emergence of plants 800-B-a-19 undated
View of field crops at Cortena 800-B-a-20 1923 September 5
View of field crops at Cortena, California 800-B-a-21 1923 September 5
View across check plot at University Rice Experiment Station, Cortena 800-B-a-22 undated
View of plants seeded and submerged at different dates. Left to right - submerged April 15, May 1, May 15, June 1 800-B-a-23 undated
Univ. of Calif. temporary Rice Experiment Station, Cortena, Calif. Plot 50 800-B-a-24 undated
Plot 6-a Cortena. Results from continuous 4-inch submergence 800-B-a-25 1924
1924 rice 800-B-a-26 1924
Rice in Plot 61 - Cortena 800-B-a-27 1924
Beginning submergence of plots at University of California Rice Experiment Station, Cortena, California 800-B-a-28 1922 April 26
Rice, Cortena 800-B-a-29 1922
Group of rice growers attending demonstration at Cortena 800-B-a-30 1922 September
Rice plots, Cortena 800-B-a-31 1923
View of Plot 60, Cortena. Submerged continuously to depth of 8 inches 800-B-a-32 1922 September
Plot 61, Cortena. Rice submerged continuously to depth of 8 inches 800-B-a-33 1924
Plat experiments - rice. Willows 800-B-a-34 1919
Variety tests, B.P.I. Station, California 800-B-a-35 1916 September
View of flooded rice field at Cortena Rice Station showing manner in which the tops of young rice plants float on water surface for several days when they first reach the surface 800-B-a-36 1929
Experimental rice plots, Biggs, Calif 800-B-a-37 undated
Table - rice yields in field plots below water warming basins of various depths. Wyhe Ranch, Glem Co 800-B-a-38 1954-1955
View of rice tanks at Cortena 800-B-b-48 1922 September
View of tank #9. Just after transplanting rice 800-B-b-49 1923 June 18
General view of tanks just after installation. Cortena, Calif 800-B-b-50 1923 June 18
General View of Rice tanks at Cortena 800-B-b-51 1923 July 10
General view of Rice tanks 800-B-b-52 1923 July 10
General view of rice tanks, Cortena 800-B-b-53 1923 September 3
View of tank #9 at Cortena, top and bottom sealed 800-B-b-54 1923 September 3
View of tank #9, Cortena, California. Top and bottom sealed 800-B-b-55 1923 September 3
Tank #6, Cortena 800-B-b-56 1923
Tank #1 - Cortena 800-B-b-57 1923
View of tank #5, Cortena, California. Just after transplanting rice. Tank #9 in background 800-B-b-58 undated
Tank #9, Cortena. Top covered, bottom sealed 800-B-b-59 1924
Rice tanks at Cortena 800-B-b-60 1924
Evaporation studies, Cortena 800-B-b-61 1924
Use of water by rice tank studies conducted at Cortena, Calif 800-B-b-62 1924
Rice growing in covered tank. Use of Water by rice studies, Cortena 800-B-b-63 (3 negs.) 1924 July
Type of rice tank used at Biggs Rice Field Station 800-B-b-64 1926
Another view of rice tank used at Biggs Rice Field Station 800-B-b-64a 1926
Type of cylinder used for rice tanks at Biggs Rice Field Station 800-B-b-65 1926
Installing rice tank at Biggs Rice Field Station 800-B-b-66 1926
Installing rice tanks at Biggs 800-B-b-67 1926
View of tank with sealed bottom, Biggs Rice Field Station 800-B-b-68 (2 neg.) 1926 April
Tank layout after installation, Biggs Rice Field Station. Use of water by rice studies 800-B-b-69 1926 April
Plot on which tank experiments on use of water by rice are conducted at Biggs Rice Field Station 800-B-b-70 1927
General view of tank yard, Biggs Rice Field Station 800-B-b-71 1927 September
Uncovered rice tank - use of water by rice studies at Biggs Rice Field Station 800-B-b-72 1927 July
Covered rice tank - used of water by rice studies at Biggs Rice field station 800-B-b-73 1927 July
Use of water by rice studies, Biggs Rice Field Station, Covered tank 800-B-b-74 1927 July
Use of water by rice studies at Biggs Rice Field Station, Covered tank 800-B-b-75 1927 July
Fertilizer studies at the Biggs Rice Field Station. Rice is being grown in garbage cans 800-B-b-76 1927 August
Rice growing in 6" of water - depth of water studies, Biggs Rice field Station 800-B-b-77 1927 September
Effect of depth of submergence on yield of rice, Biggs, Rice Field Station 800-B-b-78 1927 August
Studies on Use of Water by Rice. Rice Field Station, Biggs, California. Fertilizer tanks 800-B-b-83 (2 neg.) 1928 September 10
Studies on Use of Water by Rice. Rice Field Station, Biggs, California. Depth of water tanks 800-B-b-84 1928 September 10
Studies on Use of Water by Rice. Rice Field Station, Biggs, California. Screened enclosure 800-B-b-85 1928 September 10
Transpiration, evaporation, and seepage investigations with rice grown in tanks at Dos Palos, showing tanks before rice was transplanted 800-B-b-86 1931 June 1
Transpiration, evaporation, and seepage investigations with rice grown in tanks at Dos Palos showing tanks after transplanting. Rice has been sowed in plot but growth showing is water grass 800-B-b-87 1931 June 9
Transpiration, evaporation, and seepage investigations with rice grown in tanks at Dos Palos. View showing tank no. 1 after water has been drained from field 800-B-b-88 1931 September
Transpiration, evaporation, and seepage investigations with rice grown in tanks at Dos Palos. View showing rice tanks after water was drained off of field 800-B-b-89 1931 September
"Slender Aster" - rice weeds 800-B-c-1 1922 August 10
Echinochloa - crus galli - Cortena 800-B-c-2 1922 August 1
Water plantain grows in open spaces in rice fields and in ditches. Not particularly harmful 800-B-c-3 1922
(Echinochloa crusgalli) - Rice weeds 800-B-c-4 1922 September 15
"Slender Aster" - rice weeds 800-B-c-5 1922 September 20
(Echinochloa - crus galli) rice weeds 800-B-c-6 1922 August
Umbrella plant (Cyperus difformis) - sometimes known as "annual sedge". This weed was very troublesome at Cortena and several other places in the rice area in 1922. It was exceptionally thick in places where the stand of rice was thin. Seldom grows over 18 inches high. Can probably be held in check by heavy seeding. Seed matures by Aug. 1. Not controlled by continuous submergence 800-B-c-7 undated
Sprangle top - Spalding Ranch - (rice weeds) 800-B-c-8 1922 June 26
Cat tail (Typha latifolia) - sometimes confused with "tule". This perennial plant is becoming a more serious pest each year. The plant grows from four to twelve feet high. Seed matures the latter part of September. Summer fallow has proven helpful as a means of control 800-B-c-9 undated
Crab grass (Synotherisma Sanguinalis) This is a common grass on ditch banks and evees. It grows one to two feet high. The seed matures the latter part of August. Not especially troublesome in the rice fields 800-B-c-10 undated
Echinochloa crus galli - Cortena 800-B-c-11 undated
Spike rush, also known as wire grass, (Eleocharis palustris). Found in corners of checks, ditches, and fields not properly plowed. Grows twelve to eighteen inches high. Matures seed in July. Not controlled by continuous submergence 800-B-c-12 undated
Umbrella plant, perennial form (Cyperus virens). This form of the cyperus family is seldom harmful except in unplowed places near the rice fields. Grows from one to two feet high. The seed matures the latter part of August. Can be satisfactorily controlled by plowing 800-B-c-13 undated
Red-stem (Ammania coccinea). Found in rice fields generally where there is a thin stand of rice. Grows from six inches to two feet high. Various types mature seed from June 25 to October 25. Not controlled by continuous submergence 800-B-c-14 undated
Tules (Scirpus occidentalis). Not especially thick in rice fields. Often found in irrigation and rain ditches. Grows four to fifteen feet high. Seed matures latter part of August. Difficult to control although many growers have been successful with summer-fallow 800-B-c-15 undated
"Sprangle top" (Leptochloa fasicularis) in Rathbun Bros. & Eckles rice field. Rice seed germinated by intermittent flooding 800-B-c-16 undated
"Erigeron Canadensis" found in rice which have not been plowed and which have not been continuously submerged. Usually found growing out of the water on damp soil, as on levees, etc 800-B-c-17 undated
Arrowhead (Sagittaria latifolia) among rice plants submerged continuously to depth of 10 inches after broadcasting. Taken in Plot 60 800-B-c-18 undated
Jussiaea Californica - "California water weed" found in the rice fields growing in all depths of water. Not serious where there is a good stand of rice 800-B-c-19 undated
Smart weed (Polygonium lapathifolium). This weed is not particularly troublesome in the rice fields at present. It is often seen in the irrigation drain ditches. Grows about two feet high. Matures seed the latter part of August 800-B-c-20 undated
(Echinochloa crus-galli) - early maturing variety (about July 1). Worst pest in rice fields 800-B-c-21 undated
"Joing grass" in ditch at Cortena. 8-5-23 800-B-c-22 1923 August 5
Sprangle top taken in Rathbun Bros. & Eckler rice field. Rice seed germinated by intermittent flooding 800-B-c-23 1923 August 15
Jessica California - California water weed in rice field, Cortena 800-B-c-24 1924
Picture of joint grass (Raspalum distchum) 800-B-c-25 1923 September
View of intermediate maturing type of water grass - (Echinochloa crus galli) Cortena 800-B-c-26 1922
Joing grass (Paspalun distchum) 800-B-c-27 1923 September
View of late type or white water grass (Echinochloa crus-galli) 800-B-c-29 1923 September
Picture showing growth of sedge (Cyperus deformis) in rice field - Cortena 800-B-c-30 1923 July
Arrowhead (Sagittaria latifolia) in Cortena rice plots 800-B-c-31 1925
Arrowhead (Sagttaria latifolia) in Cortena rice plots 800-B-c-32 1925
Joint Grass (Paspalum distichum) in Cortena rice plots 800-B-c-33 1925
Sedge (Cyperus difformis) in Cortena rice plots 800-B-c-34 1925
Water plantain (Alisima plantage) at Cortena 800-B-c-35 (2 neg.) undated
Jussica Californica - California water weed - in rice plots at Cortena 800-B-c-36 (2 neg.) 1925
White water grass control studies at Biggs Rice Field Station, 1927. Series at right of rice is 10 inches deep 800-B-c-37 (2 neg.) 1927 August
Water plantain (Alisima plantage) at Cortena 800-B-c-38 1925
A foul rice field west of Plainfield, Yolo County. Water was drained several times before the field was continuously submerged 800-B-c-39 (3 neg.) 1927
Artichoke experiment, D. Conti Ranch, Castroville. Artichoke plants not ditched during winter of 1939-1940 on right. Ditched area on left. No negative 800-B-c-56 1940 March 1
First Irrigation on Adams No. 2 Rice Field Biggs, California. Rice Duty of Water Investigations in Sacramento Valley, 1917 800-B-e-2 1917 April 27
Submerged orifices and registers at Bruggman rice field intake 800-B-e-3 1924
Double 2-foot adjustable submerged orifices - measuring water to Jones rice field near Willows 800-B-e-4 1924
Two-foot adjustable submerged orifice on Bruggman drain, near Maxwell 800-B-e-5 1924
Water register and weir on drain from Husted rice field, near Williams, California 800-B-e-6 1924
8-inch rectangular weir on drain from Minton rice field - east of Willows 800-B-e-7 1924
Two-foot adjustable submerged orifice on intake to Husted rice field near Willows 800-B-e-8 1924
Weir and register at drain from Husted rice field, near Williams 800-B-e-9 1924
Double 2-foot adjustable submerged orifice on Jones rice field near Willows 800-B-e-10 1924
Two-foot adjustable submerged orifice on Minton intake east of Willows 800-B-e-11 1924
Two-foot adjustable submerged orifice on Geopf intake - Minor farm near Willows 800-B-e-12 1924 Summer
Two-foot adjustable submerged orifice on intake to Bruggman rice field, near Maxwell, California 800-B-e-13 1934
Two-foot rectangular weir on Jones drain, near Willows, Calif 800-B-e-14 1924
Weir and Water Register on Dodge rice field. Butte County, Cal 800-B-e-15 (No neg) 1916 September
Weir measuring drainage from Yarborough rice field, Maxwell 800-B-e-16 1924 June
Weir measuring drainage from Bruggman rice field east of Maxwell 800-B-e-17 1924 June
Submerged orifice measuring water at intake to Yarborough rice field 800-B-e-18 1924 June
Measuring drainage from Rathbun rice field, northeast of Williams, Calif 800-B-e-19 1924
Weir on drain, Anderson rice field, south of Cortena 800-B-e-20 1925
Two foot submerged orifice at intake to Anderson field, Cortena 800-B-e-21 (2 neg.) 1925
Rectangular weir and register measuring water to E.L. Adams rice field 800-B-e-22 1924
Rice Field near Gridley, California, - Badly Infested with Weeds 800-B-z-2 1915
Rice Binder, Madison, California 800-B-z-3 1915 November 1
H.C. Malone Rice Field, Colusa, Cal 800-B-z-4 1915 June 4
Flooding Land to Germinate Seed of Water Grass Biggs, California 800-B-z-5 1916 August
Harvesting Rice on Baker Tract, Biggs, California 800-B-z-6 1916 October 25
Threshing Rice on Phelan Ranch, Butte County, California 800-B-z-8 1916 October 31
Threshing Rice on Phelan Ranch, Butte County California 800-B-z-9 1916 October 31
Harvesting Rice near Gridley, California 800-B-z-11 1917 November
Rice field west of Biggs during early irrigation prior to submergence 800-B-z-12 1918 May 31
Berry and Adams Rice Field near Marysville 800-B-z-13 1918 November
Plat in Norman Experimental Rice Field 800-B-z-14 1918 November
Newly prepared Rice Levee near Nelson 800-B-z-15 1920 March
Newly prepared Rice levee near Nelson 800-B-z-16 1920 March
Newly prepared rice check receiving first flooding after seeding east of Maxwell 800-B-z-17 1920 May
Rice field at U.S. Rice Field Station, Biggs, Calif. One-fifth acre plot at U.S. Rice Field Station Biggs on which submergence was begun 30 days after emergence of plants 800-B-z-19 undated
View of rice field just before maturity of crop. Note drooping of heads 800-B-z-20 undated
Rice Field, Marysville, Calif. (Owned by F. Adams) 800-B-z-21 undated
Harvesting rice on Baker Field, near Biggs 800-B-z-22 October 26
Drooping Heads in a Rice Field near Biggs, at the Time Water was Turned Off. Background purposely out of focus 800-B-z-23 undated
Rice Field Near Biggs, California, Showing Drooping of Heads, at the Time Irrigation Water is Turned Off 800-B-z-24 undated
Section of Experimental Irrigation Plat, Rice Experiment Station, Biggs, Cal 800-B-z-26 undated
A Sacramento Valley rice field showing drooping of heads at the ripening period when irrigation water is drawn off 800-B-z-27 undated
Wild ducks - Spaulding Ranch 800-B-z-28 1919
Submerging rice checks - Jones rice field, near Willows 800-B-z-29 undated
Group of rice growers at University of California temporary rice experiment station 800-B-z-30 1922 September 29
Group of rice growers at Univ. of Calif. temporary Rice Exp. Sta., Cortena, Calif. Listening to Professor Charles F. Shaw 800-B-z-31 1922 September 29
Group of rice growers at Cortena 800-B-z-32 1922 September 29
Group of rice growers at Cortena 800-B-z-33 1922 September 29
Group of rice growers at University of California temporary 800-B-z-34 1922 September 29
Group of rice growers around rice tanks at Cortena 800-B-z-35 1923 September
Untitled 800-B-z-36 undated
Binder and team - Spalding Ranch rice field 800-B-z-37 (neg broken) 1919
Variation in striping or rice leaves. Leaf on left has normal green color 800-B-z-38 1927 August 15
Foul rice field west of Plainfield, Yolo County 800-B-z-41 (2 neg.) 1927 August 9
General Views. Rice field east of Sutter By-Pass 800-B-z-42 1928 May
General Views. Rice field east of Sutter By-Pass 800-B-z-43 (2 neg.) undated
General views. Rice field west of Williams 800-B-z-44 1926 September
General views. Rice Field west of Williams, Lambert Field 800-B-z-45 1925
General Views. Lifting water for rice irrigation, Williams Extension, Glenn-Colusa Irrigation District 800-B-z-46 1925
General Views. Rice Experiment Station, Cortena, California. Reeding Shed. (Cost, $325.00) 800-B-z-47 1928 September
General Views. Rice Experiment Station, Cortena, California, Rice meeting, September 14, 1928 800-B-z-48 1928 August 14
General Views. Rice Experiment Station, Cortena, California. Rice meeting, Sept. 14, 1928 800-B-z-49 1929 August 14
General Views. Sutter Basin Rice Field. Note absence of weeds 800-B-z-50 (2 neg.) 1927 September
General Views. Foul rice field near Plainfield 800-B-z-51 1927 July
General Views. Rice Experiment Station, Cortena, Calif. 1928. Effect of 3 Disc and Drag 800-B-z-53 undated
General Views. Rice Field Station, Biggs, Calif. 1928. "Crowder" for making rice levees 800-B-z-54 1928 April
General Views. Rice Field Station, Biggs, Calif. "Crowder" for making rice levees 800-B-z-55 1928 April
Rice field showing levees, Gucy Jones, Willows, Calif 800-B-z-56 1925 July
Broadcasting rice on flooded land near Nelson, Calif 800-B-z-57 (2 views) 1928 May
Binding at Cortena 800-B-z-58 1928 October
Binding at Cortena 800-B-z-59 1928 October
Discing and dragging, Cortena 800-B-z-60 1928 April
Rice in shock, Cortena 800-B-z-61 1928
Threshing rice, Cortena 800-B-z-62 1928 October
Plowing at Cortena 800-B-z-64 1928 April
Rice. Plowing at Cortena 800-B-z-66 1928 April
Rice irrigation near Butte City in east side of Sacramento Valley 800-B-z-70 1929
Garland rice field in "boot", Willows, Calif 800-B-z-71 1916
Harvesting rice, Willows, Calif 800-B-z-72 1916
Rice field showing excellent stand of rice 800-B-z-73 undated
Rice field showing excellent stand of rice 800-B-z-74 undated
Rice harvest 800-B-z-76 1916
Threshing rice on Spaulding Ranch 800-B-z-78 1919
Broadcasting rice, South of Durham, Calif. on E.L. Adams' place 800-B-z-79 (No neg.) 1928 April
Effect of spotted soil on yield. Plants taken from same plot 800-B-z-80 1919
Untitled 800-B-z-81 1919
Trench Installation. U.S. Cotton Experiment Station, Shafter, California 800-C-a-3 1927 April
Tank Installation, U.S. Cotton Experiment Station, Shafter, Cal 800-C-a-5 1928 July 10
Tank Installation. U.S. Cotton Experiment Station, Shafter, California 800-C-a-6 1928 July 10
Tank Installation. U.S. Cotton Experiment Station, Shafter, California 800-C-a-7 1928 July 10
Irrigation in place. U.S. Cotton Experiment Station, Shafter, California 800-C-a-8 1927 April
Cotton. Underground irrigation for tanks. U.S. Cotton Experiment Station, Shafter, California 800-C-a-9 1927 May
Cotton. Tank #7. U.S. Cotton Experiment Station, Shafter, Cal. Soil moisture studies 800-C-a-17 1927
Cotton. Tank #7. Studies on Soil moisture 800-C-a-18 1928 July 10
Cotton. Tank #8. U.S. Cotton Experiment Station, Shafter, Cal. Soil moisture studies 800-C-a-19 1927 September
Cotton. Tank #9. U.S. Cotton Experiment Station, Shafter. Cal. Soil moisture studies 800-C-a-20 1927 September
Cotton. Tank #14. Soil Moisture studies 800-C-a-23 1928 July 10
Cotton. Water table studies. Tank #1. U.S. Cotton Experiment Station, Shafter, California 800-C-a-24 1928
Cotton. Water table studies 800-C-a-26 1927 September 10
Cotton. Water table studies 800-C-a-30 1927 September 1
View of cotton grown in tanks at U.S. Cotton Field Station, Shafter, showing weighing device for tanks and atmometers 800-C-a-33 1930
View of cotton grown in tanks, U.S. Field Station, Shafter, Calif 800-C-a-34 1927
Water table studies with cotton in tanks, U.S. Cotton Field Station, Shafter, Calif 800-C-a-35 1927
Measuring irrigation water applied to cotton plots. 20" weir. U.S. Cotton Experiment Station, Shafter, California 800-C-b-1 1926 August
Cotton. Looking across plots at Shafter. U.S. Cotton Experiment Station, Shafter, Cal 800-C-b-2 1927 July
Cotton. View of station, U.S. Cotton Experiment Station, Shafter 800-C-b-4 1927 September
Cotton plots. U.S. Cotton Experiment Station, Shafter, Cal 800-C-b-5 1927 September
General view of cotton plots used in irrigation investigation at U.S. Cotton Field Station, Shafter, Calif 800-C-b-7 1930
Cotton growing in plot experiments, U.S. Cotton Field Station, Shafter 800-C-b-8 1930
Rogueing cotton plants at U.S. Cotton Field Station, Shafter, Calif 800-C-b-9 1930
Applying water to a portion of the irrigation field plots, U.S. Cotton Field Station, Shafter 800-C-b-10 1930
Kern Lake Cotton Field. (J.S. Townsend) 800-C-c-1 1927 August 29
Kern Lake Cotton Field 800-C-c-2 1927 September
Kern lake Cotton Field. W.B. Camp 800-C-c-3 1927 September
Cotton field experiment showing growth of plants at time of second irrigation with canal water. Biancucci tract, Firebaugh 800-C-c-4 1931 July 14
Cotton field experiment showing condition of crop on July 14, 1931. Irrigated with well water. Biancucci tract, Firebaugh 800-C-c-5 1937 July 14
Cotton field experiment showing condition of crop on July 16, 1931. Irrigated with well water. Biancucci tract, Firebaugh 800-C-c-6 1931 July 16
Cotton field experiment showing condition of crop on July 14. Irrigated with canal water. Hotchkiss ranch, Firebaugh 800-C-c-7 1931 July 14
Cotton field experiment showing condition of crop on July 14. Irrigated with well water. Hotchkiss ranch, Firebaugh 800-C-c-8 1931 July 14
Cotton field experiment showing condition of crop on July 13. Irrigated with well water. Fawcett area, Los Banos 800-C-c-9 1931 July 13
Cotton field experiment showing measurement of water for first irrigation at Fawcett ranch. Typical installation 800-C-c-10 1931 June 18
Cotton field experiment showing conditions of crop on August 19. Irrigated with well water. Fawcett area, Los Banos 800-C-c-11 1931 August 19
Cotton field experiment, showing condition of crop on August 19. Irrigated with well water. McClarren area, Los Banos 800-C-c-12 1931 August 19
Cotton field experiment showing condition of crop on August 24. Irrigated with canal water. Biancucci area, Firebaugh 800-C-c-13 1931 August 24
Cotton field experiment showing condition of crop on August 19. Irrigated with well water. Biancucci area, Firebaugh 800-C-c-14 1931 August 19
Cotton field experiment showing condition of crop on August 19. Irrigated with canal water. Hotchkiss area, Firebaugh 800-C-c-15 1931 August 19
Cotton field experiment showing condition of crop on August 19. Irrigated with well water. Hotchkiss area, Firebaugh 800-C-c-16 1931 August 19
View showing contrast in growth of cotton area adjacent to the Fawcett area south of Los Banos in West side of San Joaquin Valley 800-C-c-17 1931 September
General view showing condition of cotton grown on Fawcett area, south of Los Banos on the west side of San Joaquin in Valley 800-C-c-18 1931 September
The Fawcett area as seen from the opposite end from which picture 800-C-c-18 was taken 800-C-c-19 1931 September
Showing close-up of cotton plants on Hotchkiss area, irrigated from well 800-C-c-23 1931
Close-up view of cotton plants on the Hotchkiss area, irrigated by canal water, Firebaugh, California 800-C-c-25 1931 September 29
View showing general condition of cotton crop on the McClarren area 800-C-c-26 1931
Close-view of cotton plants, Biancucci area, irrigated by well water 800-C-c-28 1931 September 29
General view showing cotton field, Biancucci area, irrigated by canal water 800-C-c-29 1931 September 29
Close-up view of cotton plants on the Biancucci area, irrigated by canal water 800-C-c-30 1931 September 29
View showing typical soil cracks as seen on adobe soils that crack badly 800-C-c-32 1931 September
View showing nature and depth of cracks below soil surface in cotton field 800-C-c-33 1931 September 21
Surface view of soil cracks on cotton field on Biancucci area, canal irrigated. This is heavy soil (Panoche adobe). Narrow furrows for irrigation were used, less than 12 inches wide. Some of the cracked portion is no doubt the washed-in part of the furrow 800-C-c-34 1931 September 17
View of area shown in picture no. 80-C-c-34, Biancucci cotton field, canal irrigated. Cracks were about 3 inches deep. Below this depth the earth was solid and moist and on close scrutiny it was seen to be filled with tiny, white living rootlets which must have been in contact with larger lateral roots which were functioning normally for the plant 800-C-c-35 1931 September 17
View showing face of earth with loose ends of roots and entire lateral made by cutting a cross-section through the excavated furrow shown in picture 800-C-c-35 and into the cotton row. Many cut off loose ends of roots can be seen. Biancucci area 800-C-c-36 1931 Septenmber 17
Close-up view of cross section shown in preceding picture 800-C-c-37. Numerous roots indicate that serious root pruning was not caused by the cracking of the soil in this area of heavy soil which was irrigated with narrow furrows. Biancucci area 800-C-c-37 1931 September 17
General appearance of excavation in cotton row in root penetration studies after soil has been washed away from roots with pressure sprayer 800-C-c-38 1931 September
Equipment used in making root penetration studies in cotton investigations. Portable pressure spray outfit shown in lower left of picture 800-C-c-39 1931 September
Showing nature and general depth of surface cracks as seen in the first excavation on the Biancucci area, irrigated by well water 800-C-c-41 1931
Showing general appearance and depth of the surface cracks as the face of the trench shown in picture 800-C-c-41 is peeled away 800-C-c-42 1931 October 20
Showing general appearance and depth of the surface cracks as more of the face of the trench shown in preceding picture is peeled away 800-C-c-43 1931 October 20
View showing the first face as seen in a trench cut across a cotton row on the McClarren area, south of Los Banos, irrigated by well water 800-C-c-44 1931
View showing general nature and depth of the cracks when more of the face shown in preceding picture, 800-C-c-44, is peeled off 800-C-c-45 1931
View showing general depth and morphology of cotton roots growing on heavy soil with a hard pan a little less than 3 feet below the surface 800-C-c-46 1931
View showing the trench dug on Sam Hamburg's ranch, 8 miles south of Los Banos, Calif. tracing down cotton roots. In this location, on a sandier, more loamy soil, the tap roots penetrated 10 feet. The roots are in place, but cannot be seen all the way down in the picture 800-C-c-48 1931 October
Equipment used to get the picture shown in preceding picture 800-C-c-49 1931 October
Showing some of the cotton plant roots taken from the trench dug on the San Hamburg ranch, south of Los Banos. Trench shown in picture 800-C-c-48 800-C-c-50 1931
Showing method used in getting the soil samples to determine the moisture conditions in one foot increments in the excavation shown in picture 800-C-c-48 800-C-c-51 1931 October
These six bolls were picked for a tall, rank growing cotton plant. Upper three near top of plant not moldy; lower three from near bottom are moldy. Bolls a and b show about the maximum opening that bolls so growing will attain. Boll c has cotton removed, showing bottom of the boll. Boll d never did open. This very common for moldy bolls. Note modly appearance of boll and cotton. Boll e has been broken open. Note darkened color of cotton. Boll f shows about the maximum opening that these moldy bolls will make. Cotton irrigation studies, season of 1931, west side of San Joaquin Valley 800-C-c-52 1931 October 31
Collection soil samples on cotton irrigation area at Firebaugh (Fig. 33, Proj. 918, page 283) 800-C-c-53 1932
Showing the location of all the sampling points in a plot. The two stakes close together in the center mark the location of the points from which soil for moisture equivalent and permanent wilting percentage determinations were taken. The four other points marks the locations from which samples will be taken from time to time during the summer. Firebaugh. Figure 34, Proj. 918, page 283. Cotton irrigation investigations 800-C-c-54 1932?
Territory west of Firebaugh 800-C-c-55 1932
Territory west of Firebaugh 800-C-c-56 1932
Firebaugh Cotton irrigation experiment. Plot 49, treatment 10. Plants 2 weeks after first irrigation 800-C-c-57 1932 August 5
Firebaugh Cotton Irrigation Experiment. Plot 19. Treatment 2. Unirrigated plot. Note flowers in top of plants indicating latter pert of blooming season 800-C-c-58 1932 August 19
Firebaugh Cotton Irrigation Experiment. Plot 29. Treatment 7. Irrigated every week. Plants appear to be well loaded with fruit, but show no indication of overgrowth 800-C-c-59 1932 August 19
Firebaugh Cotton Irrigation Experiment. Sign showing plot numbers and treatments. The upper number indicates plots and the lower, treatments. The spread eagle shows a plot from which soil samples are taken 800-C-c-60 1932 July 15
Firebaugh. Alfalfa field next to cotton plots. Dark areas are where the alfalfa has started to grow, while light areas are where the growth has not started. Examination of the soil showed that the soil under the light areas was wet down about 3 ft. while that under the dark, or growing, was wet 6' 800-C-c-61 1932 July 15
Firebaugh Cotton Irrigation Experiment. Cotton in plot 35, treatment 2 800-C-c-62 1932 July 15
Firebaugh Cotton Irrigation Experiment. Cotton in plot 32, treatment 2 800-C-c-63 1932 July 15
Cotton irrigation experiments, Mr. Fawcett's ranch, near Los Banos. Cotton at upper end of the row. These plants apparently suffered from lack of water 800-C-c-64 1932 September 28
Cotton irrigation experiment, Mr. Fawcett's ranch, near Los Banos. Cotton at low section of the rows shown in the previous picture. This area being in a swale, gets a good supply of moisture each time either end of the rows is irrigated. Cotton is very much overgrown 800-C-c-65 1932 September 28
Cotton irrigation experiment, Mr. Fawcett's ranch, near Los Banos. Picture of plants taken from area shown in previous pictures. One on left is an outside plant, while other two grew near white stake 800-C-c-66 1932 September 28
Cotton irrigation experiments, Firebaugh and Los Banos area, 1932 800-C-c-67 to 83 1932 June to September
Cotton irrigation experiment, Firebaugh. Irrigating plots. Note small white stakes locating sampling points 800-C-c-84 1932 June 17
The two plants on the left are typical for treatment 5 while the two on the right are typical for treatment 10. One plant of each treatment had the leaves stripped off to show the development of the bolls and squares. It is evident that the potential crop is about the same for each treatment. Treatment 5 was irrigated on July 15 and August 11; treatment 10 on Aug. 8 800-C-c-85 1933
Plot 3, treatment 7, irrigated July 13 and 25 and August 1, 8, and 15. Note how the water still stands on the surface, although irrigated five days previously. Surface evaporation would probably account for a very large percentage of the loss. (No picture. See negative file or Page 350 in Project 918.) 800-C-c-86 1933
September 1. Treatment 1. Plot 20. The plants pictured here are about 30 inches high. These plants appear healthy and vigorous and compare will with these in commercial plantings. They were irrigated on July 13 and August 10 and soon will receive another irrigation. (no picture) 800-C-c-87 1933
September 1. Treatment 7. Plot 3. The plants pictured here are about 38 inches high and were irrigated on July 13 and 25 and August 1, 8, 15, 22, and 29. At this time it is doubtful if the crop on these plants will be significantly larger than that from the plants shown. (No picture.) 800-C-c-88 1933
Firebaugh cotton experiment. West side of plot 2/27 looking west across 1/26. Treatment 1 800-C-c-89 1934 July 11
Firebaugh cottom experiment. West side of 1/21 looking across 3/20. Treat, 3 800-C-c-90 1934 July 11
Firebaugh cottom experiment. West side of 3/20 looking west across 2/19. Treatment 2 800-C-c-91 1934 July 11
Firebaugh cotton experiment. S.E. corner plot 3/25 looking north across 2/19 and 1/12. Treatment 1, 2, and 3 800-C-c-92 1934 July 11
Firebaugh cotton experiment. West side of 3/20 looking west across 2/19. Treatment 2 800-C-c-93 1934 July 30
Firebaugh cotton experiment. S.E. corner 2-25 looking north across 2/19 and 1/12. Treatment 3, 2, and 1 800-C-c-94 1934 July 30
Fireabugh cotton experiment. West side of 1/21 looking across 3/20. Treatment 3 800-C-c-95 1934 July 30
Firebaugh cotton experiment. West side of 2/27 looking west across 1/26. Treatment 1 800-C-c-96 1934 July 30
Firebaugh cotton experiment. S.E. corner 3/25 looking north across 2/19 and 1/12. Treatment 3, 2, and 1 800-C-c-97 1934 November 6
Firebaugh cotton experiment. West side of 3/20 looking west across 2/19. Treatment 2 800-C-c-98 1934 November 6
Firebaugh cotton experiment. West side of 2/27 looking west across 1/26. Treatment 1 800-C-c-99 1934 November 6
Firebaugh cotton experiment. West side of 1/21 looking across 3/20. Treat. 3 800-C-c-100 1934 November 6
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant in place. Planted May 5, 1949, replanted May 25, 1949. A treatment, 1 pre-irrigation only on April 26, 27, 1949 800-C-c-101 1949 June 28
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant in place. Planted May 5, 1949, replanted May 25, 1949. B treatment, one preirrigation April 26, 27 and 2 additional irrigations 800-C-c-102 1949 July 30
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant showing depth of root. Planted May 5, 1949. A treatment one preirrigation only on April 26, 27, 1949 800-C-c-103 1949 July 30
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant showing depth of root. Planted May 5, 1949, plus 2 irrigations June 24, 1949 and on August 31, 1949 800-C-c-104 1949 July 30
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant in lab. Planted May 5, 1949, replanted May 25, 1949. A treatment, one preirrigation only April 26, 27, 1949 800-C-c-105 1949 August 30
root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant planted May 5, 1949, replanted May 25, 1949. D treatment, frequent irrigation. Preirrigation 4-26-49, 1st. irrigation 6-24-49, 2nd. irrigation 7-13-49, 3rd. irrigation 8-3-49, 4th. irrigation 8-31-49 800-C-c-106 1949 August 30
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant. Planted May 5, 1949, replanted May 25, 1949. B treatment, one preirrigation on April 26, 27, 1949 plus 1st. irrigation 6/24/49, 2nd. irrigation 8/31/49 800-C-c-107 1949 August 30
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant. Planted May 5, 1949, replanted May 25, 1949. A treatment. One preirrigation only, April 26, 27th. 1949 800-C-c-108 1949 November 21
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant to a depth of 4.5'. Planted May 5, 1949, replanted May 25, 1949. A treatment, one preirrigation only on April 26, 27, 1949 800-C-c-109 1949 November 21
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant in place depth 5'. Planted May 5, 1949, replanted May 25, 1949. A treatment, one preirrigation only on April 26, 27, 1949 800-C-c-110 1949 November 21
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant to a depth of 4.5'. Planted May 5, 1949, replanted May 25, 1949. C treatment, one preirrigation April 26, 27, 1949 plus one irrigation on 6/24/49 800-C-c-111 1949 November 22
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant in place. Planted May 5, 1949, replanted May 25, 1949. D treatment, one preirrigation on 4/26/49 plus 4 irrigations - 1st. irrigation 6/24/49, 2nd. irrigation 7/13/49, 3rd. irrigation 8/3/49, 4th. irrigation 8/31/49 800-C-c-112 1949 November 22
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton plant. Planted May 5, 1949, replanted May 25, '49. A treatment, one preirrigation only on April 26, 27, 1949 800-C-c-113 1949 November 26
Root development studies by M. Ashkar, Ph.D. thesis, University Farm, Davis, 1949. Cotton Root to a depth of 6.5'. Planted May 5, 1949, replanted May 25, 1949. A treatment, one preirrigation only on April 26, 27, 1949 800-C-c-114 1949 November 26
Lifting devices for soil evaporation tanks. Denver, Colorado 800-D-44 1916-1917
Setting tanks in barley transpiration studies, Medford Island 800-D-a-1 1925 May
Lowering inner tank into outer tank - barley transpiration studies, Medford Island. Note iron rods suspended from angle iron or at top to hold bottom of tank after filling inner 800-D-a-2 1925 May
Platform and weights used for forcing outer tanks into the peat - barley transpiration studies - Medford Island 800-D-a-3 1925 May
Chunks of peat as removed from the pits dug around tanks - barley transpiration studies at Medford Island. A detail of peat as shown at the side of the open pits in another picture 800-D-a-4 1925 May
Putting cover on potato tank 800-D-a-5 1925 June 10
Putting cover on potato tank 800-D-a-6 1925 June 10
Putting cover on potato tank 800-D-a-7 1925 June 10
Tanks with potatoes growing 800-D-a-8 1925 June 10
Barley tanks 800-D-a-9 1925 June 9
Potato tanks after leveling up around them. King Island 800-D-a-10 1925 May 15
Potato tanks before leveling up around them. King Island 800-D-a-11 1925 May 14
Sugar beets grown in tanks in Reclamation District 999 of the Sacramento-San Joaquin river delta. Shows yields from the six tanks used un the season of 1927. Tank no.1 used 1.87 acre-feet of water, no.2, 1.8; no.3, 2.6; no.4, 1.5; no.5, 2.0; no.6, 2.0 800-D-a-12 1927
Untitled 800-D-a-13 1926
Use of water studies of milo grown in tanks, University Farm, Davis 800-D-a-14 1925
Sugar beets growing in tanks in use-of-water studies, Reclamation District 999 800-D-a-15 1928
Tank experiment with beans, use of water studies, Reclamation Dist. 999 800-D-a-16 1927
Beans from tanks in Reclamation District 999, use of water studies 800-D-a-17 1927
Tank experiment with beans, Delta of Sacramento-San Joaquin rivers, use of water by field crop studies 800-D-a-18 1927
Sugar beets growing in tanks in Reclamation District 999. Use of water studies 800-D-a-19 1927
Moisture requirement tanks installed in the lower unit of Reclamation District No. 999. Frame partially loaded. Tank about half down 800-D-a-20 1926
Moisture requirement tank in the lower unit of the Reclamation District No. 999. Frame partially loaded. Tank just beginning to go down 800-D-a-21 1926
Moisture requirement tanks. Reclamation District No. 999 800-D-a-22 1926
Inner tank filled, ready to put bottom of tank on. Reclamation District No. 999 800-D-a-23 1926
Moisture Requirement tanks. reclamation District No. 999 800-D-a-24 1926
Moisture Requirement ranks. Reclamation District No. 999 800-D-a-26 1926
Installing outer tanks. Reclamation District No. 999 800-D-a-27 1926
Potatoes in Reclamation District No. 999 800-D-a-28 1926
Loading frame for installing tank. Reclamation District No. 999 800-D-a-29 1926
Inner tank filled with soil. Reclamation District No. 999 800-D-a-30 1926
Potatoes in the field. Reclamation District No. 999 800-D-a-31 undated
Potatoes in the field. Reclamation District No. 999 800-D-a-32 undated
Guayule grown in tanks; Davis. Odd number, wet treat. Even numbers, normal treat 800-D-a-36 1944 September 26
Guayule, beans, and sugar beets grown in tanks, Davis 800-D-a-37 1944 September 26
Guayule, beans, and sugar beets grown in tanks, Davis 800-D-a-38 1944 September 26
Buckeye and field sunflower plants showing evidence of water shortage at the same time. Note the lower leaves of the sunflower plant wilted. The drooping of the leaves on the Buckeye is noticeable 800-D-a-39 1944 July 17
Buckeye and field sunflower plants showing evidence of water shortage at the same time. Note the lower leaves of the sunflower plant wilted. The drooping of the leaves on the Buckeye is noticeable 800-D-a-40 1944 July 17
Buckeye and field sunflower plants showing evidence of water shortage at the same time. Note the lower leaves of the sunflower plant wilted. The drooping of the leaves on the Buckeye is noticeable 800-D-a-41 1944 July 17
Guayule growing in tanks, Davis 800-D-a-42 1943 October 23
Alfalfa and guayule growing in tanks, Davis 800-D-a-43 1943 October 23
Soil moisture tanks being installed in lower unit of Reclamation District 999. Use of water studies. (See picture 800-M-a-22) 800-D-a 1926
See: 800-L-a-54 Water logged tanks. Evaporation experiments. Beans and corn. 800-L-a-55 Similar to above. 800-L-a-56 Similar to above. 800-L-a-57 Similar to above 800-D-a- 1940 October 10
Portion of agronomy irrigation experiment plots, Fort Collins, Colorado 800-D-b-1 1932
Tents used for covering agronomy irrigation experiment plots, Fort Collins, Colorado. (2 views) 800-D-b-2 1932
Fig. 2, A.H. Holland's Lettuce Irrigation Report, 1937. Method of measuring lettuce diameters 800-D-b-3 1937 September 29
Looking across upper ends of lettuce irrigation plots 7, 5, and 3, (wet). Randolph Market Co. Watsonville, 9/29/37 800-D-b-4 1937 September 29
Watermelon irrigation investigations, plot 10. Size of plants at time of first soil moisture sampling (fig. 40) July 23, 1935. No irrigation water applied. Print used for fig. 41 in Proj. 918F, page 54. (See print 800-D-b-22) 800-D-b-9 1935 July
Watermelon irrigation investigations, plot 10. Size of plants at the time of the second soil moisture sampling (fig. 40) July 31, 1935. No irrigation water applied. Print used for fig. 42, Proj. 918F. (See print 800-D-b-27) 800-D-b-10 1935 July
Watermelon irrigation investigations, plot 10. Size of the plants at the time of the third soil moisture sampling (fig. 40), Aug. 7, 1935. No irrigation water applied. Print used for fig. 43, Proj. 918F, page 56. (See print 800-D-b-25) 800-D-b-11 1935 August
Watermelon irrigation investigations, plot 10. Size of the plants at the time of the fourth soil moisture sampling (figure 40), Aug. 15, 1935. No irrigation water applied. Print used for fig. 44, Proj. 918F, p. 57. (See print 800-D-b-24) 800-D-b-12 1935 August
Watermelon irrigation investigations, plot 10. Size of the plants at the time of the fifth soil moisture sampling (fig. 40), Aug. 23, 1935. No irrigation water applied. Print used for fig. 45, Proj. 918F, page 58. (See print 800-D-b-26) 800-D-b-13 1935 August
Watermelon irrigation investigations, plot 10. Size of the plants at the time of the sixth soil moisture sampling (fig. 40), Aug. 30, 1935. No irrigation water applied. Print used for fig. 46, Proj. 918F, p. 59. (See print 800-D-b-23) 800-D-b-14 1935 August
Corresponding slides filed S1303 to S1309 800-D-b-15 to 21 undated
Watermelon irrigation investigations, plot 10. Size of plants at time of first soil moisture sampling. July 23, 1935. (See print 800-D-a-b-9) 800-D-b-22 1935 July
Watermelon irrigation investigations, plot 10. Size of plants at the time of the sixth soil-moisture sampling. Aug. 1935. No irrigation water applied. (See print 800-D-b-14) 800-D-b-23 1935 August
Watermelon irrigation investigations, plot 10. Size of plants at the times of the fourth soil moisture sampling, Aug. 15, 1935. No irrigation water applied, See print 800-D-b-12 800-D-b-24 1935 August
Watermelon irrigation investigations, plot 10. Size of plants at the time of the third soil moisture sampling, Aug. 7, 1935. No irrigation water applied. (See print 800-D-b-11) 800-D-b-25 1935 August 07
Watermelon irrigation investigations, plot 10. Size of plants at the time of the fifth soil moisture sampling, Aug. 24, 1935. No irrigation water applied. (See print 800-D-b-13) 800-D-b-26 1935 August
Watermelon irrigation investigations, plot 10. Size of plants at the time of the second soil moisture sampling, July 31, 1935. No irrigation water applied. (See print 800-D-b-10) 800-D-b-27 1935 August
Fig. 5 of "Suggestions on irrigating commercial truck crops", by L.D. Doneen and J.H. MacGillivray, Univ. Calif. circular, 1943. Effect of irrigation treatment on diameter of watermelons (deep-rooted) 800-D-b-30 1943 August
Baby lima beans, Davis 800-D-b-31 1944 June 19
Pasture, left, and Sudan grass, right, C. Schwartz Farm, Pleasant Valley Nevada County, on which Duty of Water is being Measured, 1917 800-D-c-1 1917 August
Pasture, O'Brien Field, Smartsville, California. Duty of Water Investigations, Yuba-Nevada Counties Season, 1917 800-D-c-2 1917 May 18
Experimental irrigation of barley, University Farm, Davis, Season, 1918. Field 2, Block 2 800-D-c-3 1918 May 22
Measuring water to field crops - Field 7 - Davis 800-D-c-6 1922
Sudan grass - if Field 7 800-D-c-7 Summer 1922
Sorghum under irrigation in Field 7 - Davis 800-D-c-9 Summer 1922
Irrigation of beans, experimental plots, Davis 800-D-c-11 1915
Field experiments. Experimental alfalfa irrigation tract, Davis, California 800-D-c-12 1915
Irrigated and unirrigated beans. Davis 800-D-c-13 1915
Field experiments at Davis to study variability in yields from plots receiving identical treatment 800-D-c-15 1931
Field experiments at Davis to study variability in yields from plots receiving identical treatment 800-D-c-17 1931
Peach Orchard, Delhi, orchard interplanted with cow peas 800-D-c-18 1922
Field experimental plots at Davis to study variability in yields from plots receiving identical treatment. Field 2-A 800-D-c-19 1931
Field experimental plots at Davis to study variability in yields from barley plots receiving identical treatment 800-D-c-20 1934 May 10
Field experimental plots at Davis to study variability in yields from barley plots receiving identical treatment 800-D-c-21 1934 May 10
Field experimental plots at Davis to study variability in yields from barley plots receiving identical treatment 800-D-c-22 1934 May 10
Plots used in cultivation experiments with lettuce. Martin Capitanich ranch, on San Juan road, near Watsonville, Calif 800-D-c-24 1938 August 26
Beans. Soledad Ranch Co., Soledad, Calif. Plot 1, on left. Irrigate every other furrow, same furrow every irrigation. Irrigations - 6/15, 7/13, 8/1, 8/20. Plot 2, on right. Irrigate every other furrow, same furrow every irrigation. Irrigations - 7/7, 8/3, 8/20 800-D-c-30 1939 September 06
Beans. Soledad Ranch Co., Soledad, Calif. Plot 2, on left. Irrigate every other furrow, same furrow every irrigation. Irrigations - 7/7, 8/3, 8/20. Plot 3, on right. Irrigate every furrow. Irrigations 6/15, 7/13, 8/1, 8/20 800-D-c-31 1939 September 6
Beans, Soledad Ranch Co., Soledad, Calif. Plot 3, on left. Irrigate every furrow. Irrigations 6/15, 7/13, 8/1, 8/20. Plot 4, on right. Irrigate every furrow. Irrigations - 7/7, 8/3 800-D-c-32 1939 September 6
Beans. Soledad Ranch Co., Soledad, Calif. Plot 4, on left. Irrigate every furrow. Irrigations - 7/7, 8/3. Plot 5, on right. Irrigate every other furrow, alternate furrows each irrig. Irrigations - 6/15, 7/13, 8/1, 8/20 800-D-c-33 1939 September 6
Beans. Soledad Ranch Co., Soledad, Calif. Plot 5, on left. Irrigate every other furrow, alternate furrows each irrig. Irrigations - 6/15, 7/13, 8/1, 8/20. Plot 6, on right. Irrigate every other furrow, alternate furrow each irrig. Irrigations - 7/7, 8/3, 8/20 800-D-c-34 1939 September 6
Artichokes. D. Conte ranch, Castroville, Calif. Blocking out field for irrigations 800-D-c-37 1939 September 06
Lettuce experiment, W.D. Loveless, Watsonville. Shows plants having had only two cultivations 800-D-c-40 1939 March 30
Lettuce experiment. W.D. Loveless, Watsonville. Shows plants having had six cultivations 800-D-c-41 1939 March 30
Irrigation studies ladino clover. Irrigated at 2-week intervals 800-D-c-42 1939 May 15
Irrigation studies ladino clover. Irrigated at 4-week intervals 800-D-c-43 1939 May 15
Artichokes, King Ranch, Castroville, summer 1939. (See 800-D-c-23) 800-D-c-49 Summer 1939
Lettuce cultivation experiment, Randolph Market Co., Watsonville, showing plots after first cutting. Weedy areas are the plots having had 3 cultivations. Center area clear of weeds and two beds to left of the side were used for 6 cultivations 800-D-c-50 1937 September 29
Lettuce irrigation experiment, Mrs. Sterling's Ranch, farmed by Earl Wilson, Salinas. a) shows plot 19-A, foreground, crop grown without irrigation. b) shows plot 24-B, foreground. One flood irrigation applied 6/5/40 800-D-c-51a 1940 June 17
Lettuce irrigation experiment, Mrs. Sterling's Ranch, farmed by Earl Wilson, Salinas. c) shows plot 39-C, foreground; flood irrigations on 5/11 and 6/5. d) shows plot 34-D, foreground; irrigated on 5/12, 6/5, 6/20 800-D-c-51c 1940 June 17
Lettuce irrigation experiment, Mrs. Sterling's Ranch, farmed by Earl Wilson, Salinas. Looking at plots from South end 800-D-c-52 1940 June 17
Lettuce irrigation experiment, Spiegl Ranch, Castroville. 5/9 - flooded low beds. 5/18 - harrowed and planted. 7/2 - flood irrigated 800-D-c-53 1940 July 29
Lettuce irrigation experiment, Speigl Ranch, Castrolville. 5/9 - small stream furrow irrigation. 5/18 - harrowed and planted. 7/2 - furrow irrigation. 7/23 - furrow irrigation 800-D-c-53a 1940 July 29
Bean irrigation experiment, California Orchard Co., Greenfield, Calif. Plots 7-B and 8-C. C plots irrigated 6/19, 7/11, 7/25, 8/14, B plots irrigated 7/11 and 8/2 800-D-c-54 1940 August 16
Bean irrigation experiment, California Orchard Co., Greenfield, Calif. Plots 8-C and 9-A. C plots irrigated 6/19, 7/11, 7/25 and 8/14. A plots irrigated 7/25 and 8/2 800-D-c-54a 1940 August 16
n irrigation experiment, Soledad Ranch Co. Plots 20-D and 21-A. D plots heavily irrigated on 6/21, 7/18, and 8/1. A plots irrigated 8/1 800-D-c-55 1940 August 16
Bean irrigation experiment, Soledad Ranch Co. Plots 17-A and 18-B. A plots irrigated 8/1. B plots irrigated 7/18 800-D-c-55a 1940 August 16
Bean irrigation experiment, Soledad Ranch Co. Plots 19-C and 20-D. D plots, heavy irrigation, 6/21, 7/18, and 8/1. C plots, irrigated, 6/25, 7/18, and 8/1 800-D-c-55b 1940 August 16
Bean irrigation experiment, Soledad Ranch Co. Plots 18-B and 19-C. C plots irrigated 6/26, 7/18, and 8/1. B plots irrigated 7/18 800-D-c-55c 1940 August 16
Lettuce, Spiegl Ranch, Chular. Shows the difference between regular furrow and shallow furrow in experimental plot. See page 409 of 1940 lettuce report 800-D-c-56a 1940 October 16
Lettuce, Speigl Ranch, Chular. Shows the difference between regular furrow and shallow furrow in experimental plot. See page 409 of 1940 lettuce report 800-D-c-56b 1940 October 16
Artichokes, D. Conti Ranch, Castroville. Loooking S.E. across Plot 9B-3 irrigations 800-D-c-57 1940 October 16
Artichokes - D. Conti Ranch, Castrovile. Looking S.E. across Plot 17A 1 irrigation, June 27 800-D-c-58 1940 October 16
Artichoke experiment D. Conti Ranch, Castroville. Looking N.E. across Plot 1C. 5 irrigations 800-D-c-59 1940 October 16
View of 1940 artichoke irrigation experiment, D. Conti Ranch, Castroville. Looking South from Plot 9B 800-D-c-60 1940 September 26
Artichoke cultivating experiment, D. Conti Ranch Castroville. Less cultivated plots (2 cultivations during growth). Looking S. through less cultivated rows from N. end of Plot 4 800-D-c-61 1940 October 16
Artichoke cultivating experiment, D. Conti Ranch, Castroville, cultivated plots (5 cultivation during growth). Looking S. through frequently cultivated plots from North end of Plot 10 800-D-c-62 1940 October 16
Merion bluegrass plots, Daivis 800-D-c-63 undated
Young prune orchard on the experiment irrigation tract interplanted with beans. Davis, Calif 800-E-c-1 1918
Young Pear Orchard, Casey Brothers near Smartsville California. Duty of Water Investigations, Yuba-Nevada Counties Season, 1917 800-E-c-2 1917 May 18
Irrigation part of experimental prune orchard. Irrigation tract, Davis 800-E-c-3 undated
Looking west in Muir Peach Orchard - Delhi Experimental tract 800-E-c-4 1921 May
Northwest corner of orchard - Delhi experimental tract. Showing a Delhi wind 800-E-c-5 1923 Spring
Muir peach orchard, Delhi 800-E-c-6 undated
View of mature Elberta peach orchard on Week's ranch, Antelope Valley, where duty of water studies were conducted in 1927. Distance between tree rows, 21.5 feet 800-E-c-7 1927
General view of prune orchard at Stanford Ranch, Vina, Calif., where duty of water studies were conducted during season of 1927. Distance between tree rows, 25 feet 800-E-c-8 1927
View of 4-year old Elberta peach orchard of Mr. Bugbee, east of Red Bluff. This orchard was used in duty of water studies for the season of 1927. Trees planted on triangle with tree centers at 24 feet 800-E-c-9 1927
View of 6-year old peach orchard at Doane ranch, Antelope Valley, used in duty of water studies in 1927. Distance between tree rows 24 feet 800-E-c-10 1927
Filed plot used in duty of water studies, 1928. Seven-year old Elberta peach orchard on Doane Ranch, Antelope Valley, near Red Bluff, Calif 800-E-c-11 1928
Experimental irrigation of peach orchard, Delhi 800-E-c-12 1921
Plan of Frietas #1, Santa Clara Valley. Water requirement studies 800-E-c-13 undated
Prune orchard, District 10, (Ellis Orchard) about 5 miles north of Marysville, Calif. Trees growing on hard pan land. Each tree site blasted before planting 800-E-c-14 1924
Experimental plots in prune orchard, irrigation studies. Branch of the College of Agriculture, Davis, Calif 800-E-c-15 1923 October 5
Irrigation of one of plots in treatment "C" Experimental Prune Orchard, Davis. Beginning to fill checks, cross levees not closed 800-E-c-17 1932 August 10
Soil-moisture investigations. Apple Trees at Rowe's place. Watsonville, California. Row 6 T7 Wet 800-E-c-19 1934 August 31
Soil-moisture investigations at Rowe's place in Watsonville, Calif. Wet plots. Row 6 T2 800-E-c-20 1934 August 31
Soil-moisture investigations on Rowe place, Watsonville Row 9 T3. Dry plots 800-E-c-21 1934 August 31
Soil-moisture investigations, Rowe's place, Watsonville, Calif. Apple orchard. Row 9 T3 Dry plots 800-E-c-22 1934 August 31
Hilgardis v. 2(6): 125-291. Jan. 1927. Fig. 1, p. 131. Orchard No. 2 on Oct. 4, 1920, showing condition of soil and trees. (See: 116.5.6 Some factors affecting the irrigation requirements of deciduous orchards. F.J. Veihmeyer for print) 800-E-c-23 1920 October 4
Hilgardia v. 2(6): 125-291. Jan. 1927. Some factors affecting the irrigation requirements of deciduous orchards. By F.J. Veihmeyer. Fig.2 Orchard no. 5 on Nov. 1, 1920. (See: 116.5.6 Mss., title above, for print.) 800-E-c-24 1920 November 1
A typical French prune tree at Davis at 2 yrs. of age. Fig. 1a. Calif. Agr. Exp. Sta. Bul. 573. 1934. (Row 1, tree 7) Irrigation experiments with prunes. By A. H. Hendrickson and F. J. Veihmeyer 800-E-c-25 1918
(Pomology Div. has negative) A typical French prune tree (row 1, tree 7) at Davis at 3 yrs. of age. Fig. 1b. Calif. Agr. Exp. Sta. Bul. 573. 1934 Irrigation experiments with prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-26 1919
(Pomology Div. has negative) A typical French prune tree (row 1, tree 7) at Davis at 4 yrs. of age. Fig. 1c. California Agr. Experiment Station Bul. 573. 1934 Irrig. exper. with prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-27 1920
(Pomology Div. has negative) A typical French prune tree (row 1, tree 7) at Davis at 7 yrs. of age. Fig. 1d. Calif. Agr. Exp. Sta. Bul. 573. 1934 Irrig. exper. with Prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-28 1923
The same French prune tree as shown in Fig. 1., left, during the summer of the 16th year. Fig 2. Calif. Agr. Exp. Sta. Bul. 573. 1934 Irrig. Exp. with Prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-29 1932
The same French prune tree as shown in Fig. 1., right, during the winter of the 16th year. Fig 2. Calif. Agr. Exp. Sta. Bul. 573. 1934 Irrig. Exp. with Prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-30 1933
French-prune orchard at Davis, sowing location of plots. The experimental trees are enclosed in the broken lines. Fig. 4. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Experiments with Prunes. By A.H. Hendrickson and F.J. Veihmeyer 800-E-c-31 1923
Plan of experiment prune orchard in Santa Clara Valley. Water requirements of deciduous orchards study. Bowden and Pollard orchards 800-E-c-32 circa 1919
Leaves on tree yellow and burned. Effect of spraying for red spider. Prune orchard Field 7, Row 15, Plot 5, Tree 1 in foreground. Treatment A. Looking south 800-E-c-33 1939 August 2
Leaves on tree yellow and burned. Effect of spraying for red spider. Prune orchard, Field 7, Treatment D, Row 1, Plot 1, Tree 1. Looking northeast 800-E-c-34 1939 August 02
Looking west from Horticulture Building (in foreground) with poultry buildings beyond. Pomology orchard in upper right of photograph. Altitude about 800 feet. View taken from Goodyear airship "Volunteer," Branch of the College of Agriculture, Davis, Calif 800-F-15 1936 March 26
Contour irrigation - Lemon Experimental plot. Cruickshank Grove, Vista 800-F-b-1 1926
Key tree on experimental plot in duty of water studies. Treat avocados 800-F-b-2 1927 April 21
Key tree on experimental plot. Treat grove. Lemons 800-F-b-3 1927 April 21
Key tree of experimental plot, Navel oranges, 30 years old. Red Mt. Ranch, Fallbrook, Cal 800-F-b-4 1926
Navel oranges. Red Mountain Ranch. Plot B 800-F-b-5 1926
Key tree to plot. Red Mountain Grove. Oranges. Duty of water studies in Southern California 800-F-b-6 1927 April 22
Key tree, experimental plot, Valencia oranges. Hinrichs grove 800-F-b-7 1927 March 15
Contour planting west end of irrigation tract, Citrus Experiment Station 800-F-b-8 1930 December
General view showing citrus grove at the Citrus Experiment Station, Riverside, planted for irrigation studies. Trees planted May, 1930 800-F-b-9 1930 December
(a) View near selected plot in grapefruit, Hoyt Ranch. 1 mile North of Myoma, Coachella Valley. (b) New planting of tangerines at Hoyt Ranch. 1 mile North of Myoma (Use of water studies in Coachella Valley) 800-F-c-1 1932 April 28
See atmometer views used in use of water studies in Coachella Valley under 800-L-a-48-549-50. See - 800-L-e-8-9-10 Views of soil sampling in plots used for use of water studies in Coachella Valley 800-F-c undated
First irrigation of Thompson Seedless vineyard, Delhi Irr. Exp. tract 800-G-a-1 1921 May
Vineyard experimental tract at Delhi 800-G-a-2 1921 May
Vineyard, Experimental Irrigation Tract, Delhi, California 800-G-a-3 1921
Portion of Postlewaite Date Garden used for soil moisture studies, Coachella Valley 800-H-c-1 1932 February 29
(20) Looking east from water tower, Gov't Date Gardens, Indio. (21) Looking south west from water tower, Gov't Date Gardens, Indio 800-H-c-2 1932 June
(19) Looking north from water tower, Gov't Date Gardens, Indio. (19) Looking west from water tower, Gov't Date Gardens, Indio 800-H-c-3 1932 June
(a) Cowgill Date Gardens during sand storm. June 2, 1932, 4 mi. so. of west of Thermal, Calif. (b) Irrigating in Cowgill Date gardens. June 2, 1932. Use of water studies in Coachella Valley 800-H-c-4 1932 June
Irrigation of dates in Hoyt Ranch, Coachella Valley. Use of water studies in Coachella Valley 800-H-c-5 1932 April 28
See 700-M-b-145 for view of measuring water onto plots at Boyer Date Gardens, Coachella Valley, 1932 800-H-c- undated
See views of atmometer set-up used in use of water studies in Coachella Valley by A.F. Pillsbury. 800-L-a-48-49-50 800-H-c undated
Irrigation of plots at Delhi. Loss of water studies 800-L-a-1 1921 July 7
Loss of water studies, showing depth of mulch. Delhi Exp. Irrigation Tract 800-L-a-2 1922
Sampling plots, Delhi. Loss of water studies 800-L-a-3 1921 August
Prune tree on soil with a water table 2 1/2 feet from the surface. Fall, 1926. Hilgardia. Fig. 23 800-L-a-4 1926
Soil sampling, plots, Santa Clara Valley 800-L-a-5 1921 June 1
Soil sampling, Santa Clara Valley 800-L-a-6 1921 June 1
Soil Sampling, Santa Clara Valley 800-L-a-7 1921 June 1
Mulching plots. Santa Clara Valley 800-L-a-8 1921 June
Cultivation of mulched plots. Santa Clara Valley 800-L-a-9 1921
Evaporation and cultivation experiments near Mountain View 800-L-a-10 circa 1922
Evaporation from the soil surface. Condition of the Yolo clay soil in the cultivated plots at Whittier, two months after irrigation. (Hilgardia, Vol. 2, No. 6, Fig. 37.) 800-L-a-11 1924
Condition of the uncultivated Yolo clay soil in the uncultivated plots at Whittier, two months after irrigation. The place of sampling is indicated by the stake in the foreground and the special tube usedd to take samples in 4-inch depths is shown. (Hilgardia, Fig. 38.) 800-L-a-12 1924
The manner of spacing the holes around the stake indicating the place of sampling for moisture determinations in the field plots used in the evaporation trials. Photograph taken in one of the uncultivated plots at Mountain View two months after irrigation. (Hilgardia, Fig. 39) 800-L-a-13 1924
Evaporation from the soil surface. Irrigation plots in mulching experiment at Whittier, July, 1921 800-L-a-14 1921 July
Evaporation from the soil surface. Leffingwell Rancho, Whittier Tract. Plots after irrigation 800-L-a-16 1921 July 15
Evaporation from the soil surface. Whittier Tract. Plots after irrigation 800-L-a-17 1921 July 15
Irrigated plots at Whittier for loss of water studies. (48 hours after irrigation.) 800-L-a-18 1921 July 15
Evaporation from soil surface studies. Imperial Tract first irrigation 800-L-a-19 1921 July
Evaporation from soil surface. Imperial Tract 800-L-a-20 1921 July
Evaporation from soil surface. Imperial Tract 800-L-a-21 1921 July
Irrigating plots in Imperial Valley. Silt soil 800-L-a-22 1921 July
Irrigation of Imperial Valley plots 800-L-a-23 1921 July
Evaporation from soil surface studies. Sampling Imperial Valley plots 800-L-a-24 1921 August
Evaporation from soil surface. Imperial Valley 800-L-a-25 1921 August
Evaporation from soil surface studies. Sampling mulched and unmulched plots, Imperial Valley. Manner of spacing holes 800-L-a-26 1921
Irrigation of mulched and unmulched plots. Loss of water from soil studies. Imperial Valley 800-L-a-27 1921 August
Evaporation from soil surface. Irrigation of mulched and unmulched plots. Imperial Valley 800-L-a-28 1921 July
Barley and vetch plants growing in tanks irrigated 80 days before the seeds were planted. Rain was prevented from wetting the tanks by means of the wooden frame and a canvas cover 800-L-a-29 1922 March 10
Evaporation from soil surface studies. Vetch plants growing in tanks #36 on soil which had been exposed to evaporation for a period of 80 days after irrigation and before the seeds were planted. The soil in this tank was uncultivated during this period, being in the same conditions that in Fig. 33. (Higardia, Vol. 2, No. 6, Fig. 32.) 800-L-a-30 1922 May 6
Evaporation from the soil surface studies. Vetch plants growing in tank #30 on soil which had been exposed to evaporation for a period of 80 days after irrigation and before the seeds were planted. The soil in tank #30 was cultivated during this period and was in the same condition as that in tank #35, (left in fig. 32.) (Hilgardia, Vol. 2, No. 6, Fig. 33.) 800-L-a-31 1922 May 06
Evaporation from soil surface studies. Tank 26, containing morning glory (Convolvulus arvensis) plants. (Hilgardia, Vol. 2, No. 6, Fig. 35.) 800-L-a-32 1924 August 19
Evaporation from the soil surface studies. Mt. View. Vetch and barley in tanks. Long exposure to evaporation, without additional water being added to soil 800-L-a-33 1922
Evaporation from soil surface studies. Vetch and barley in mulched and unmulched tanks, Mt. View 800-L-a-34 1922 March 10
Evaporation from soil surface studies. Vetch and barley in tanks 800-L-a-35 1922
Evaporation from soil surface studies. Vetch in tank 800-L-a-36 1922
Evaporation from soil surface studies. Vetch growing in tank 800-L-a-37 1922
Evaporation from soil surface studies. Vetch and barley in tanks 800-L-a-38 1922
Evaporation from soil surface studies. Vetch and barley in tanks 800-L-a-39 1922
Evaporation from soil surface studies. Barley in tanks 800-L-a-40 1922
Evaporation from soil surface studies. Vetch in tank 800-L-a-41 1922
Experiments to determine losses of moisture from irrigated soils due to evaporation directly from the surface of cultivated and uncultivated soil. Plots in the Santa Clara Valley immediately after irrigation, cross levees used to insure even distribution of moisture 800-L-a-42 1921 June
Mixing soil for loss-of-water-by-evaporation from water-logged soil experiments, University Farm, Davis 800-L-a-43 1931 August 29
Filling tanks for loss-of-water-by-evaporation from water-logged soil experiments. University Farm, Davis 800-L-a-44 1931
Fig. 30 - Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J.. Loss of water by evaporation directly from the surface of bare soils in tanks at Mountain View, 1921 800-L-a-45 1926
Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J 800-L-a-46 1926
Fig. 36 - Hilgardia Vol. 2, No. 6 800-L-a-47 1926
Atmometer in Blackburn's Thompson Grapes, looking south. Coachella Valley, near Thermal, Calif. Use of water studies 800-L-a-48 1932 May 17
(a) Atmometer at Hoyt ranch - 1 mile North of Myoma (b) Atmometer in Menakher Gardens of R. H. Postlethwaite, Coachella Valley. Use of water studies in Coachella Valley 800-L-a-49 1932 April 26
Atmometers at Government Date Gardens, April 28, 1932. Coachella Valley. Use of water studies 800-L-a-50 1932 April
Wheat tanks 2-7 mc. Tulare wheat experiment 1905, showing effects of varying amounts of water 800-L-a-51 1905
Tank installations, evaporation, and transpiration experiments, Fort Collins, Colorado 800-L-a-51 1932
Soil moisture studies. Fort Collins at 1915 800-L-a-52 1915
Soil moisture studies. Fort Collins 800-L-a-53 1915
Distribution of water from furrows; Madera sand, after 30 minute run. John Quail, Farm Advisor, Merced County 800-L-b-1 1923
Filling capillary soil columns for studies of the effect of cross sectional area upon capillary rise 800-L-c-1 1924 November 24
Quantitative columns used in capillary rise observation showing extent of rise after 16 days. The columns are square inches reading from left to right 800-L-c-2 1924 November 8
Battery of soil columns used to determine the effect of size of container upon capillary rise. Constant level bottle shown in the foreground 800-L-c-3 1925 November 26
Batteyr of capillary soil columns used in determining the effect of container upon capillary rise. Small sizes in the foreground 800-L-c-4 1925 November 26
Determining the effect of cultivation upon the rate of absorption of irrigation water 800-L-c-5 1925 November 13
Determining the effect of cultivating upon the rate of absorption of irrigation water 800-L-c-6 1925 November 13
Effect of subsoiling in alfalfa plots at Davis 800-L-c-7 1920 September
Effect of subsoiling in Alfalfa plots at Davis, Calif. Subsoiled to depth of 28 inches with different distances in different plots. Plots all irrigated with 1 to 1.5 acres-inches depth immediately and every two days for four or five irrigations. Beckett's work at Davis. Determination of percolation made after each irrigation and noted improvement of permeability a short distance away from subsoil strip due to greater penetration at this place. Illustrates lack of lateral movement. Irregular spots - gopher holes 800-L-c-8 1920 September
Movement of moisture from moist soil to drier soil. Packed column with central section of soil wet. Picture taken before glass front was put in position 800-L-c-9 1922 October
Movement of moisture from moist soils to drier soils. Deciduous Fruit Experiment Station, Mountain View 800-L-c-10 1923 January 13
Movement of soil moisture from moist soils to drier soils. Deciduous Fruit Experiment Station, Mountain View 800-L-c-11 1923 January
Movement of soil moisture from moist soils to drier soils 800-L-c-12 1923 January
Movement of soil moisture from moist soils to drier soils 800-L-c-13 1923 January 13
Movement of soil moisture from moist to drier soils 800-L-c-14 1922
Movement of soil moisture from moist soils to drier soils 800-L-c-15 1923 January 13
Movement of soil moisture. Weighing columns for studies. Irrigated middle section for study of movement of moisture. Mt. View 800-L-c-16 1922 August
Field demonstration in soil moisture distribution for boys club convention 800-L-c-17 1925 October 23
Field demonstration in soil moisture distribution for Boys Club Convention 800-L-c-18 1925 October 23
Hilgardia Vol. 2, No. 6 - Movement of moisture upward and downward 800-L-c-19 1926
Fig. 44 - Hilgardia Vol. 2, No. 6 - Movement of moisture upward and downward 800-L-c-23 1926
Soil permeability to water studies. Plot on Pomology tract, Davis 800-L-c-24 1933 February 2
Quantity of water expressed in surface inches in various parts of the soil mass. Permeability of soil to water studies buy N.E. Edlefsen and G.B. Bodman 800-L-c-27 1933 November 4
Transmission of water through saturated sands and soils. Pressure potential gradient may be written in full as gram centimeters per gram. Note: Pressure potential gradient may be written in full as gram centimeters per gram of water per centimeter of column of soil. Multiply horizontal scale by 5 for all soils. Divide vertical scale by 10 for soils YOL (Yolo Clay Loam) and YFSL (Yolo fine sandy loan). Divide vertical scale by 50 for soil ACL (Aiken Clay Loam) 800-L-c-28 1933 November 10
Quantity of water transmitted through soil planes in surface inches per day as related to depth and time. Soil permeability to water studies 800-L-c-29 1933 November 10
Capillary conductivity curves for, A--a sandy soil, B--Greenville loam soil and C--Preston clat. (After Richards) 800-L-c-30 undated
Curves showing the relation between capillary potential and moisture content for, A--B ennet sandy soil, B--Greenville loam soil and C--Preston clay. (after Richards) 800-L-c-31 undated
See: 790-18 - Diagram showing wet area and moisture contents on Dec. 16, 1925. 790-19 - Diagram showing wet area and moisture contents on Oct. 22, 1925. 790-13 - Diagram showing extent of moisture movement from irrigation furrows. Sandy loam soil. 1, 4, 8, 26, 48, and 72 hrs. after beginning irrig., University Farm. 1925 800-L-c undated
(Pomology negative 4034) Soil sampling in face of trench dug across field capacity plots, Yuba City 800-L-d-1 undated
Moisture equivalent as a measure of the field capacity of soils. Field capacity plot at Yuba City on Madera and Gridley loam 4 days after a depth of 4 inches of water was applied. The hatched area represents the wetted portion of the soil and the numbers are the relative wetness or the ratio of moisture content to the moisture equivalent. (Fig. 1. Soil Sci. 32(3):181-193) 800-L-d-4 1928
Field capacity plot at Yuba City on Madera and Gridley loam, 4 days after a depth of 8 inches of water was applied. The hatched area represents the wetted portion of the soil and the numbers are the relative wetness of the ratio of moisture content to the m.e. M.G. soil, (Soil Sci. 32(3):181-193. 1937, fig.2) 800-L-d-5 1928
Field capacity plot at Hughson on Fresno sandy loam, 6 days after a depth of 6 inches of water was applied. The hatched area represents the wetter portion of the oil and the number are the relative wetness of the ratio of moisture content to the m.e. (See Soil Sci. 32(3):181-193. '31) 800-L-d-7 1928
Field capacity plot of Riverside 5 days after a depth of 6 inches of water was applied. (Fig. 6 of "Mois. Equiv. as a meas. of the f.c. of soils." F.J. Veihmeyer and A.H. Hendrickson. Soil Sci. 32(3):181-193. Sept. 1931.) 800-L-d-9 1928
Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J 800-L-d-10 1926
No Pictures. See lantern slides and negatives. 800-L-d-30 ---- S 600, 800-L-d-12 ---- S 601, 800-L-d-13 ---- S 602, 800-L-d-14 ---- S 603, 800-L-d-15 ---- S 604, 800-L-d-16 ---- S 605, 800-L-d-17 ---- S 606 and S 606A, 800-L-d-18 ---- S 608, 800-L-d-19 ---- S 609, 800-L-d-20 ---- S 610, 800-L-d-21 ---- S 611, 800-L-d-22 ---- S 613, 800-L-d-23 ---- S 614, 800-L-d-24 ---- S 615, 800-L-d-25 ---- S 616, 800-L-d-26 ---- S 796, 800-L-d-27 ---- S 797, 800-L-d-28 ---- S 812, 800-L-d-29 ---- S 607 800-L-d-11-28 undated
A gravelly old valley-fill soil, Corning covered with a dense growth of Manzanita interspersed with some pine and scrub oak. (Fig. 1 of the Permanent Wilting Percentage as a Reference Point for the Measurement of Soil Moisture, by F. J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on Physics of Soil Moisture report, American Geophysical Union, 1947) 800-L-d-32 1947 February
Aiken loam with an almost pure stand of chamise, but with some Ceanothus and Manzanita. (Fig. 2 of the Permanent Wilting Percentage as a Reference Point for the Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on Physics of Soil Mositure report, American Geophysical Union, 1947) 800-L-d-33 1947 February
Yolo soil, in a mature walnut orchard. (Fig. 3 of The Permanent Wilting Percentage as a Reference for Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on Physics of Soil Moisture, American Geophysical Union, 1947) 800-L-d-34 1947 February
Yolo soil, in a mature prune orchard. (Fig. 4 of The Permanent Wilting Percentage as a Reference for Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on the Physics of Soil Moisture, American Geophysical Union, 1947) 800-L-d-35 1947 February
Yolo soil, in a mature peach orchard. (Fig. 5 of The Permanent Wilting Percentage as a Reference for Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on the Physics of Soil Moisture, report, American Geophysical Union, 1947) 800-L-d-36 1947 February
Yolo soil supporting a growth of soft chess, bur clover, and Nodding stipa. (Fig. 6 of The Permanent Wilting Percentage as a Reference Point in the Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on the Physics of Soil Moisture report, American Geophysical Union, 1947) 800-L-d-37 1947 February
Yolo soil supporting a growth of weedy annuals and Nodding stipa. (Fig. 7 of The Permanent Wilting Percentage as a Reference Point in the Measurement of Soil Moisture, by F.J. Veihmeyer and A.H. Hendrickson, prepared for the Committee on the Physics of Soil Moisture report, American Geophysical Union, 1947) 800-L-d-38 1947 February
Boring for moisture in unirrigated prune orchard near Napa 800-L-e-1 1916
Sampling of plots in Santa Clara Valley 800-L-e-2 1921
Soil sampling 800-L-e-3 undated
Soil sampling with compressor run by auxiliary ford motor 800-L-e-4 undated
Soil sampling with compressor run by auxiliary Ford motor 800-L-e-5 undated
Sampling for soil moisture in a desert brush area, Coachella Valley, east of Beach Date Garden 800-L-e-6 1932 February 29
Sampling for soil moisture in B.S. Boyer Date Garden, Coachella Valley 800-L-e-7 1932 February 29
Apparatus necessary for determining volume weights of soils by rubber tube method. Imperial Valley, Calif 800-L-e-11 1914
Roy Southwick, Assistant Farm Advisor, Ventura county, taking soil samples in citrus grove prior to irrigation to determine whether irrigation is needed. Near Ventura, Calif. Gould Denison, owner 800-L-e-15 1939 June
See also - 800-L-a-6 and 7 800-L-e undated
Aqueous vapor pressure curves of fine sandy, loam, clay loam, and a 50-50 mixture of each, 1932. A- fine sandy loam; B, clay loam; C half and half mixture. (See article in Sci. Instruments, 1933, A glass wool cell for measuring aqueous...) 800-L-f-1 1932 June
A system for demonstrating the colligative properties of soil moisture. A is a chamber with semi-permeable bottom, D, and containing an osmotic solution; B, a vessel filed with soil and having a porous bottom, E; C, a capillary tube; and G, a vessel filled with water under tension. (See neg. file for print showing slight change in drawing) 800-L-f-3 1933 August 11
Typical vapor pressure curves for sand and clay showing permanent wilting percentages and field capacities. (Used in Manuscript on "Soil Moisture System" Am. Soc. Agron. meeting Nov. 1933 by G.B. Bodman and N.E. Edlefsen) 800-L-f-4 1933 November 10
Relation between vapor pressure and capillary potential of water at 20 degrees C 800-L-f-5 1933 November 10
SEE DATA 117.3 Aqueous vapor pressure and density of sulfuric acid solutions as a function of temperature and composition. Photo taken from the Journal of Industrial and Engineering Chemistry 13(4):328, 1921 800-L-f undated
Vapor pressure studies. See - Instruments Pictures 775-38, 39, 40, 41, and 42 of electrical apparatus 800-L-f undated
Variation of dielectric constant of water with temperature (after Lattey, Gatty, and Davies). Fig. 2, "Results of dielectric methods for measuring moisture in materials", Ag. Engineering 800-L-g-1 1932
Variation of dielectric constant of solution with concentration (After Lattey and Davies). Fig. 3, Ag. Engineering article by N.E. Edlefsen 800-L-g-2 undated
Results of moisture determination with Burton-Pitt apparatus compared with Brown-Duval method after (Burton-Pitt). The deflection used should be interrupted as a change in capacity of the condenser used. (Fig. 4, Ag. Eng. article.) 800-L-g-3 1932 December
Dielectric studies. Change in capacity of condenser having sand with varying amounts of moisture as the dielectric medium. Material was ground to different degrees of fineness. Moisture equivalents of these sands are shown at top of graph. (Fig. 5 in Agr. Engineering article) 800-L-g-4 1932 December
Variation of capacity of a condenser, having a dry loam soil between the latest, with variation in amount of water added. (Fig. 6, Ag. Eng. article. "Results of dielectric methods for measuring moisture in materials.") 800-L-g-5 1932
Change in capacity of condenser with moisture content as determined in the field on clay loam. (Fig. 7, Article in Agricultural Engineering, 1933) 800-L-g-6 1933 February
Constant of sands of different sized particles and varying moisture contents 800-L-g-7 1933 March
An electrical circuit containing a leaky condenser that is equivalent to a perfect condenser K in parallel with a resistance X 800-L-g-8 1933
A combination equivalent to a leaky condenser having inductance in its leads 800-L-g-9 1933
Actual circuit used in experiment 800-L-g-10 undated
Circuit equivalent to that used in actual experiment (Fig. 5) 800-L-g-11 1933
Negative only. Curves showing moisture content of Yolo clay loam as a function of time, and electrical resistance of 2-electrode blocks as a function of time, together with the derived curves showing the resistance as a function of moisture content, for three plaster-of-Paris blocks at the 18-inch depth under field conditions. (Fig. 1, Field study of response of the electrical resistance of 2- and 4-electrode plaster of Paris blocks to variations in soil moisture, Soil Sci. 54(4):275-279, 1942, Edlefsen, Andersen, and Marcum) 800-L-g-15 1942
Negative only. Dependence of the 2-electrode plaster of Paris blocl resistance on time after block had been placed in a large body of Yolo fine sandy loam at the uniform moisture contents indicated. (Fig. 2, of "Laboratory study of the response of 2- and 4-electrode plaster of Paris blocks as soil-moisture content indicators", Soil Sci. 53(6):413-428, 1942, by Andersen and Edlefsen.) 800-L-g-16 1942
Negative only. Curves showing moisture content of Yolo clay loam as a function of time, and electrical resistance of 2-electrode blocks as a function of time, together with the derived curve showing the resistance as a function of moisture content, for three plaster of Paris blocks at the 18" depth under field conditions. Prepared as figure for "Field study of response of the electrical resistance of 2- and 4-electrode plaster of Paris blocks to variations in soil moisture", by N.E. Edlefsen, A. Andersen, and W.B. Marcum, Soil Sci. 54(4), 1942, but not used in publication 800-L-g-17 1942
Curves showing moisture content of Yolo clay loam as a function of time, and electrical resistance of 2-electrode blocks as a function of time, together with the derived curve showing the resistance as a function of moisture content, for 3 plaster of Paris blocks at the 18" depth under field conditions. Prepared as figure for "Field study of response of the electrical resistance of 2- and 4-electrode plaster of Paris blocks to variations in soil moisture", by N.E. Edlefsen, A. Andersen, and W.B. Marcum, Soil Sci. 54(4), 1942, but not used in publication. Negative only 800-L-g-18 1942
Negative only. Derived curves showing resistance of blocks as a function of moisture content when the blocks are placed in Yolo fine sandy loam upon which plants were growing in the laboratory. The numbers distributed along the curve indicate the cycle from which the data were obtained. Figure 2 of "Methods of measuring soil moisture:, Amer. Soc. Sugar Beet Tech. 1943, by N.E. Edlefsen, A. Andersen, and W.B. Marcum 800-L-g-19 1942
Negative only. Figure 3, Curves showing moisture content of Yolo sandy loam as a function of time and electrical resistance of 2 electrode blocks as a function of time together with the derived curve showing the resistance as a function of moisture content for three plaster of Paris blocks at the 18" depth under field conditions. From "Methods of measuring soil moisture", Amer. Soc. Sugar Beet Tech. 1943, by N.E. Edlefsen, A. Andersen, and W.B. Marcum 800-L-g-20 1942
Bouyoucos block calibration curve showing soil moisture content vs resistance for Yolo clay loam at 6-inch depth with sunflower in No. 5 can 800-L-g-21 1950 Spring
Bouyoucos block calibration 800-L-g-22 1950 Spring
Bouyoucos calibration curve. Relation between PW and Resistance 800-L-g-23 1950 Spring
See Also - 775-43 and 44. 775-43- Electrical circuit used in portable dielectric meter etc. 775-44- Condenser shown in place in the soil; Detail of condenser, Dielectric studies, 1933 800-L-g undated
Strawberries, Davis, 1937, used to study the effect of soil moisture on the plants and show grother relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants." by Veihmeyer, Frank J., Edlefsen, Niels E. and AH Hendrickson. (Fig. 9(a)) 800-L-i-1 1937 June 29
Strawberries, Davis, 1937, used to study the effect of soil moisture on the plants and show growth relative to tensiometer measurements 800-L-i-2 1937 July 2
Strawberries, Davis, 1937, used to study the effect of soil moisture on the plants and show growth relative to tensiometer measurements 800-L-i-3 1937 July 7
Strawberries, Davis, 1937, used to study the effect of soil moisture on the plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants." by FV, Edlefsen, Niels E. and AHH. Fig. 7b 800-L-i-4 1937 July 12
Strawberries, Davis, 1937, used to study the effect of soil moisture on the plants and show growth relative to tensiometer measurements 800-L-i-5 1937 July 15
Strawberries Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants." by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH. Fig. 7c 800-L-i-6 1937 July 23
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "use of tensiometers in measuring availability of water to plants." by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH 800-L-i-7 1937 July 30
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to ooplants." by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH. Fig. 7c 800-L-i-8 1937 August 06
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH 800-L-i-9 1937 August 19
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "use of tensiometers in measuring availability of water to plants." by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH. Fig. 9a 800-L-i-10 1937 August 31
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants." by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH 800-L-i-11 1937 September 16
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements 800-L-i-12 1937 September 22
Strawberries, Davis, 1937, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants" by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH 800-L-i-13 19+37 September 29
Strawberries, Davis, used to study the effect of soil moisture on plants and show growth relative to tensiometer measurements. See paper "Use of tensiometers in measuring availability of water to plants" by Veihmeyer, Frank J., Edlefsen, Niels E., and AHH, Fig. 9b 800-L-i-14 1937 October 7
Piezometer 800-L-i-15 1959
Diagram of water wedge between soil particles indicating regions experiencing forces of different natures 800-L-z-1 1932 April
Effect of method of irrigation on nitrogen content of soils. Experiments by C.B. Lipman, University Farm, Davis 800-L-z-3 1915
Effect of method of irrigation on nitrogen content of soils. Experiments by C.B. Lipman, University Farm, Davis 800-L-z-4 1915
Photograph of Staff at Mt. View, Calif. 785-Z-207 800-L-z undated
Tank yard, Davis, California 800-M-a-1 1927 April
Initial weighing of water jacket soil tanks at Pomona sub-station; showing apparatus for lifting and weighing tanks 800-M-a-2 1903 July 23
Weighing soil tanks at time of installation, Tulare sub-station. Average weight of tanks when filled 375 pounds 800-M-a-3 1903 May 30
Installing soil tanks at Tulare sub-station. 34 soil tanks and one evaporation tank installed 800-M-a-4 1903 May 28-30
Arlington Fruit Company's Ranch, Riverside, Calif 800-M-a-5 undated
Equipment for water relations studies. Excavation of trench for tanks Mountain View 800-M-a-6 1920
Equipment for studying water requirements of prune trees and evaporation losses from soil. Deciduous Fruit Experiment Sta., Mountain View, Cal 800-M-a-7 1921 April
Equipment for water relations studies. Preliminary test on automatic suspended tank. Mountain View, California 800-M-a-8 1921
Equipment for water relations studies. Tank No. 7, Automatically balanced tank. mt. View, California 800-M-a-9 1921
Soil tanjs at Mt. View used to determine the losses of moisture by evaporation directly from the surface of the soil. Later the tanks were further protected from temperature changes by pieces of board sheathings cut to fit around tanks 800-M-a-10 1921
Equipment for water relations studies. Mt. View, California 800-M-a-11 1921
Equipment for water relations studies. Tree 22, in a tank automatically balanced so that small losses of moisture by transpiration could be measure. Photograph taken May, 1921, just after the apparatus had been moved from Davis to Mt. View. Later the tank was fitted with a cover and a wider rim and a low protecting wall was built around the apparatus to protect it from winds. (Hilgardia, Fig. 26.) 800-M-a-12 1921 May
Tank automatically balanced so that small losses of moisture by transpiration could be measure. Mountain View 800-M-a-14 1921
Automatically balanced tank for measuring small losses of moisture by transpiration, Mt. View 800-M-a-15 1921
Automatically balanced tank for measuring small losses of moisture by transpiration, Mountain View 800-M-a-16 1921
Installing water-jacket soil tanks for irrigation investigation at Pomona sub-station 800-M-a-17 1903 June 20
Preliminary trial with automatic balanced tank, Davis 800-M-a-18 1919
Preliminary trial with automatic balanced tank, Davis, Cal 800-M-a-19 1919
(Data files 573.2.2) general view of tank equipment for water-relations and evaporation studies at Davis. (Picture too large for photograph files.) 800-M-a-20 1923
Tanks and weighing equipment used in alfalfa studies 800-M-a-21 1929
Soil moisture tanks being installed in lower unit of Reclamation District 999 for planting of sugar beets. This study was for the purpose of studying effects of water table and also the water requirements of beets. Results are reported in Project 747 800-M-a-22 1926
Two-compartment tanks used for studies on use of water by field crops in Reclamation District 999 800-M-a-23 1927
View of tank equipment for water relations studies looking south. Branch of the College of Agriculture, Davis, Calif 800-M-a-24 1927
View of tank yard, Davis, 1927, FJ Veihmeyer 800-M-a-25 1927
Photographs taken by Augusto Alfani of Florence, Italy when on a visit here in 1936. Views of tanks used in soil moisture studies, University Farm, Davis, Calif 800-M-a-26 undated
Automatic irrigator and recorder with cotton plant 800-M-a-28 1938 April 26
Tank yard, Davis. Equipment to study relation of water, soils and plants. 1926 800-M-a-29 1926
A. Tank yard. University Farm, Davis. F.J. Veihmeyer. b. Tank yard,, University Farm, Davis. c. A.W. Sampson's tanks. Lysimeter experiment. Berkeley, Calif 800-M-a-30a 1937
Wilting coefficient. Rate of transpiration experiments, illustrating narrow range of moisture in which wilting occurs. Cans 102, 104, plants fully turgid 800-M-b-1 1929 March 26
Pomology 3820 800-M-b-3 1928 February 10
Pomology No. 3823. Cans and equipment for determination of permanent wilting percentage. Note sealed tops with opening for plants 800-M-b-6 1929
Wilting of plants: 800 cans with 32 kinds of plants 800-M-b-7 1929
(Pomology Neg. No. D-4096) Small negative in our files and extra print. Wilting of plants on continuously moving turn table with constant environmental conditions 800-M-b-8 1929 March 21
Sunflower plants permanently wilted. This picture and the one following are shown in picture 800-M-b-9. Plants O-39, O-44, and O-67 were wilted in the open. Plants O-38, O-47, and O-32 were wilted in glass moisture chamber 800-M-b-10 1928 May 29
Dwarf sunflower plants revived approximately 60 minutes after wilting. These are the same plants shown in preceding picture. Plants 39, 44, and 67 were wilted in the open; plants 38, 47, and 32 were wilted in a glass moisture chamber 800-M-b-11 1928 May 29
Wilting experiments, 1926, showing cloth shelter 800-M-b-12 1926
Wilting of plant experiments according to the Caldwell method. 1926 800-M-b-13 1926
Wilting of plants according to the Caldwell method 800-M-b-14 1926
Wilting of plants according to Caldwell method 800-M-b-15 1926
Wilting experiments with sunflowers, Davis 800-M-b-16 1927
Wilting experiments with sunflowers 800-M-b-17 1927
Wilting experiments, 1927, showing corn plants 800-M-b-18 1927
Sunflower plants wilted on soil mixtures, combination of Yolo clay, Fresno sand, Aiken loam, and Oakley fine sand 800-M-b-19 1931 July
Cactus growing about 100 yards west of Apricot Schoolhouse 2 miles west of Winters on Monticello road. Umbrella tree showed no signs of wilt. When seen on December 9, 1931, cactus had fully recovered and was turgid 800-M-b-20 1931 September
Same cactus as shown in preceding view, revived after winter rains 800-M-b-21 1932 January
Showing sunflower plants used for permanent wilting percentage of soils from Firebaugh area growing in greenhouse, Davis 800-M-b-22 1932 June
Hilg. 2(6):125-291. Jan., 1927. Some factors affecting the irrigation requirements of deciduous orchards. By F.J. Veihmeyer. Fig. 17. Wilting and partial defoliation of trees in the unirrigated row 9 caused by drought, Aug. 18, 1920 800-M-b-23 1920 August 18
Hilg. 2(6):125-291. Jan., 1927. Some factors affecting the irrigation requirements of deciduous orchards. By F.J. veihmeyer. Fig. 18. Conditon of trees in the unirrigated row 9 on Aug. 2, 1919. Much less wilt is shown than in fig. 17 800-M-b-24 1919 August 2
Hilg. 2(6):125-291. Jan., 1927. Some factors affecting the irrigation requirements of deciduous orchards. By F.J. Veihmeyer. Fig. 19. Condition of trees in irrigated row 3 on Aug. 2, 1919. The heavier foliage and absence of wilting is evident when this figure is compared with figures 17 and 18 800-M-b-25 1919 August 2
Fig. 6 Relation of soil moisture to cultivation and plant growth. F.J. Veihmeyer. First Internat. Cong. Soil Sci., Proc. and Papers 3:498-513. 1928 800-M-b-26 1928
No Neg. Soil moisture studies. View of tanks, Branch of the College of Agriculture, Davis, California, with F.J. Veihmeyer and Roy Wray in the center. Taken by Sadao Yasuda, Professor of Plant Breeding, Taihoku Imperial University, Taihoku, Japan, when on a visit to Davis April 7, 1937 800-M-b-27 1937 April 7
Lantern slide negative. (Pom. Div. has print neg. D-4247, 4248) Hopi Indian corn plant wilted (left); revived 75 minutes after water was added to soil (right) 800-M-b-27 1930 March 1
Thistle plants in YC soil; lower, wilted; Upper, revived two hours after water was added. Pomology negative - D4245, D4246 800-M-b-28 1930 March 1
Strawberry plant growing in Madera silt loam in double walled pot, inner wall of which is a porous. Plant is extracting water under a suction of 23 1/2 inches of mercury. Note plant is completely turgid. (M.E. 16.83; PWP 6.97) See also 800-M-b-31 800-M-b-30 1937 June 14
Same strawberry plant as in previous view. Plant was irrigated and allowed to stand one hour before photograph was taken. Note soil is wet with 0 "suction) 800-M-b-31 1937 June 14
Later photograph of strawberry plant shown in 800-M-b-30 and 31 800-M-b-32 1937 June 21
Strawberry in double walled pot, extracting water under a suction of 21 inches of mercury 800-M-b-33 1937 July 12
Strawberry in double-walled pot 800-M-b-34 1937 June 3
Transpiration studies. Prune trees in tanks used to determine the loss of moisture by evaporation from bare twigs and branches during the dormant season. Tree 1 is on the right, tree 3 is in the center, and tree 6 is on the left. (Hilgardia, Vol. 2, No. 6, Pl. 3, Fig. 2) 800-M-c-1 1922
Transpiration studies. Prune trees growing in tanks to determine loss of moisture by evaporation 800-M-c-2 1922
Transpiration studies. Prune trees growing in tanks to determine loss of moisture by evaporation 800-M-c-3 1922
Transpiration studies. Prune trees in tanks 800-M-c-4 1922
Transpiration studies. Prune trees in tanks 800-M-c-5 1922
Transpiration studies. Prune trees in tanks 800-M-c-6 1922
Transpiration studies. Prune trees growing in tanks 800-M-c-7 1922
Transpiration studies. Prune trees in tanks 800-M-c-8 1922
Transpiration studies. Prune trees in tanks 800-M-c-9 1922
Transpiration studies. Prune trees in tanks 800-M-c-10 1922
Transpiration studies. Prune trees in tanks 800-M-c-11 1922
Transpiration studies. Prune trees in tanks. The effect of differences in soil moisture on the condition of prune trees. Tree 3 on the left, and tree 5 on the right on soil below wilting coefficient. Tree 4 in the center on soil with moisture content near the wilting coefficient. (Hilgardia, Vol. 2, No. 6, Pl. 1, Fig. 1.) 800-M-c-12 1922
Transpiration studies. (Hilgardia, Vol. 2, No. 6, Pl. 1, Fig. 2., p. 286.) Effect of differences in soil moisture on the condition of prune trees. Oct. 28, 1922. Tree 3 on the left, and tree 5 on the right on soil below wilting coefficient. tree 4 in the center on soil with moisture content near the wilting coefficient 800-M-c-13 1922
Transpiration studies. (Hilgardia, Vol. 2, No. 6, Pl. 3, Fig. 1.) Fall condition of prune trees on water-logged soil, compared to that of a tree on soil near the wilting coefficient. The soil on which tree 12, on the left, and tree 14, on the right, were growing was water-logged throughout the growing season. tree 13, in the center, was reduced nearly to the wilting coefficient; moisture content of soil being near wilting coefficient 800-M-c-14 1922 October 18
The effect of soil moisture on the condition of prune trees in the fall. Tree 15, on the left, and tree 17, on the right, on soil with moisture content below the wilting coefficient. Tree 16, in the center on soil with moisture content near the wilting coefficient, (Hilgardia, Vol. 2, No. 6, Pl. 2, Fig. 1.) 800-M-c-15 1922 October 7
The effect of soil moisture on the condition of prune trees in the fall. Tree 19, in the center, and tree 20, on the right, on soil kept continuously above 16% moisture content. Tree 18 on left, on soil kept above 16% moisture content until the last week in Aug. when it was allowed to wilt but was revived, and the soil moisture content thereafter allowed to fluctuate between the max. field cap. and the wilting coefficient. tree 18 on soil near wilting coefficient. (Hilgardia, Vol. 2, No. 6, Pl. 2, Fig. 2.) 800-M-c-16 1922 October 18
Transpiration studies. Prune trees in tanks 800-M-c-17 1922
Transpiration studies. Prune trees growing in tanks 800-M-c-18 1922
Transpiration studies. Prune trees in tanks 800-M-c-19 1922
Transpiration studies. Prune trees in tanks 800-M-c-20 1922
Transpiration studies. Prune trees in tanks 800-M-c-21 1922
Transpiration studies. Prune trees in tanks 800-M-c-22 1922
3-yr. old prune tree in tank weighing 1200 lbs. Lost 1250 lbs. water during 1921 season. Uncropped tank with same kind of soil lost 28 lbs. Mt. View 800-M-c-23 1921
3-yr. old prune tree in tank weighing 1200 lbs. Lost 1250 lbs. water during 1921 season. Uncropped tank with same kind of soil lost 28 lbs. Mt. View 800-M-c-24 1921
Preliminary trials to automatically determine use of water by deciduous trees. Davis, Calif. Automatic weighing and recording device to determine rate of transpiration - total amt. of water required. Outer tank contains water with film of oil to prevent evaporation - inner tank balanced. Loss of moisture from soil through transpiration causes outser tank to rise sufficiently to come to balance. Surface of soil covered with parafine and coarse gravel 800-M-c-25 1919
Transpiration studies. Prune trees in tanks 800-M-c-26 1922
Water requirements of deciduous fruit trees, work under project 633. See No 800-M-c-27 1920 September
Water requirements of deciduous fruit trees. Project 633. Tanks containing trees covered with parafine and coarse gravel. No loss of moisture except through transpiration. Blank tank as a check 800-M-c-28 1920 September
Water requirements of deciduous fruit trees. See Nos 800-M-c-29 undated
Water requirements of deciduous fruit trees. See Nos 800-M-c-30 undated
Section of Lipman's moisture percentage experiment at Limonera Orchard, Santa Paula. Beginning at left, tanks 1, 2, and 3 maintained at 30 percent moisture, tanks 4, 5, and 6 at 28 percent moisture; and tank 7 at 26 percent moisture 800-M-c-31 undated
Section of Lipman's moisture percentage experiment at Limonera Orchard, Santa Paula. Beginning at left, counting the portion of tank shown as 1, tank 1 maintained at 22 percent moisture; tanks 2, 3, and 4 at 20 percent moisture and tanks 5, 6, and 7 at 18 percent moisture 800-M-c-32 undated
Section of Lipman's moisture percentage experiment at Limonera Orchard, Santa Paula. Beginning at left tanks 1, 2, and 3 maintained at 16 percent moisture; tanks 4, 5, and 6 at 14 percent moisture 800-M-c-33 undated
Section of Lipman's moisture percentage experiment at Limonera Orchard, Santa Paula. Beginning at left, tanks 1, 2, and 3 maintained at 12 percent moisture; tanks 4, 5, and 6 at 10 percent moisture 800-M-c-34 undated
Tank experiment carried under the direction of Dr. C.B. Lipman near Santa Paula. In this experiment soil moisture percentages varying from 10 to 30 per cent are maintained, there usually being three trees for each moisture percentage, and with intervals of 2 percent between the groups. In the tanks on the right a moisture content of 10 percent is maintained and on the extreme left a moisture content of 30 percent 800-M-c-35 undated
Section of Lipman's moisture percentage experiment at Limonera Orchard, Santa Paula. Beginning at left, tanks 1 and 2 maintained at 26 percent moisture; tanks 3, 4, and 5 at 24 percent moisture and tanks 6 and 7 at 22 percent moisture 800-M-c-36 undated
Transpiration studies. Tree No. 1, French prune on Myrobalan root, grown with a water table 2 1/2 ft. from surface. Lower matted mass of roots grew below the water surface. Trunk and branches weighed 3 3/4 lbs. roots, 4 1/2 lbs. Tree planted in tank 4/15/19. (Hilgardia, Vol.2, No. 6, Fig. 24.) 800-M-c-37 1923 January 3
Transpiration studies. Development of roots of prune trees in tanks. Tree No. 6 800-M-c-38 1923 February
Transpiration studies. Development of roots of prune tree in tanks. Tree No. 9 800-M-c-39 1923
Transpiration studies 800-M-c-40 1923 January 30
Transpiration studies. Development of roots of prune trees in tanks 800-M-c-41 1923
Transpiration studies. Development of roots of prune trees in tanks 800-M-c-42 1923
Apricot tress in automatically balanced tank for study of rate of transpiration. Davis, California 800-M-c-43 1932 September 8
Hilgardia Vol. 2, No. 6 800-M-c-44 1926
Hilgardia, Vol. 2, No. 6 800-M-c-45 1926
Hilgardia Vol. 2, No. 6 800-M-c-46 1926
Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J 800-M-c-47 1926
Hilgardia Vol. 2, No. 6, Veihmeyer, Frank J 800-M-c-48 1926
Hilgardia Vol. 2, No. 6 800-M-c-49 1926
Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J 800-M-c-50 1926
Hilgardia Vol. 2, No. 6 800-M-c-51 1926
Hilgardia - Vol. 2, No. 6, Veihmeyer, Frank J 800-M-c-52 1926
Hilgardia, Vol. 2, No. 6 - Veihmeyer, Frank J 800-M-c-53 1926
Fig. 6, Hilgardia Vol. 2, No. 6 - Soil moisture conditions in Santa Clara Valley prune orchard No. 2 during 1919 and 1920. Rainfall indicated by the heights of solid black rectangles, and the amt. of irrigation is represented by the cross hatched rectangles 800-M-c-54 1926
Fig. 9, Hilgardia Vol. 2, No. 6. Soil moisture conditions in Santa Clara Valley prune orchard No. 3 during 1921 and 1922 800-M-c-55 1926
Fig. 10, Hilgardia Vol. 2, No. 6 - Soil moisture conditions in the Santa Clara Valley prune orchard No. 4 during and 1919 and 1920 800-M-c-56 1926
Fig. 12, Hilgardia Vol. 2, No. 6. Soil moisture conditions in Santa Clara Valley prune orchard No. 5 during 1919 and 1920. Rainfall shown by black rectangles; amount of irrigation water by cross-hatched rectangles 800-M-c-57 1926
Fig. 15 of Hilgardia Vol. 2, No. 6, 1927. Soil moisture conditions in the Santa Clara Valley prune orchard No. 6 during 1921 and 1922. Rainfall is shown by black rectangles and amount of irrigation water by cross-hatched rectangles 800-M-c-58 undated
Untitled 800-M-c-60 undated
Transpiration studies, constant temperature room, Davis. Sunflower plants from turn table grown in nutrient solution 800-M-c-61 1934 November 28
Sunflower plants grown in Yolo loam from sugar beet plots, Davis. Plants grown in constant temperature room on turntable, study of transpiration losses 800-M-c-62 1934 November 28
Sunflower plants grown in Aiken loam in constant temperature room, turntable. Study of transpiration losses 800-M-c-63 1934 November 28
Sunflower plants wilted under constant temperature environment conditions on turn table, Davis. Plants growing in Aiken loam. See view 800-M-c-63, same plants two days earlier 800-M-c-64 1934 November 30
Plants wilted under constant temperature environmental conditions on turntable, Davis. Plants growing in Yolo loam from sugar beet plots. See view 800-M-c-62 taken two days earlier 800-M-c-65 1934 November 30
Sunflower plants grown in Aiken loam, Davis. Plants grown in constant temperature room on turntable study of transpiration losses. See views 800-M-c-63 and 800-M-c-64 800-M-c-66 1934 December 4
Sunflower plants wilted under constant temperature environmental conditions on turntable, Davis. Plants growing in Aiken loam. See views 800-M-c-63 and 800-M-c-64. Also 800-M-c-66 800-M-c-67 1934 December 4
Sunflower plants grown in Yolo loam from sugar beet plots, Davis. Plants grown in constant temperature room on turntable, study of transpiration losses. See views 800-M-c-62,65, and 66 800-M-c-68 1934 December 5
Sunflower plants wilted under constant temperature environmental conditions on turntable, Davis. Plants growing in Aiken loam. See views 800-M-c-63, 64, 66, and 67 800-M-c-69 1934 December 9
Sunflower plants grown in Yolo loam from sugar beet plots, Davis. Plants grown in constant temperature room on turntable, study of transpiration losses. See views 800-M-c-62, 65, 66, and 68 800-M-c-70 1934 December 9
Test of automatic irrigators in constant temperature room, developed for use in transpirations studies 800-M-c-83 1937 May 27
Soil fully wet. Panel 5, Photo 1. Irrigation Exhibit, Golden Gate International Exposition, Treasure Island 800-M-c-84 1939
Half the available water is gone. Panel 5, photo 2. Irrigation Exhibit. Golden Gate International Exposition, Treasure Island 800-M-c-85 1939
Only one tenth of the available water remains yet the plant shows no distress. Panel 5, Photo 3. Irrigation Exhibit, Golden Gate International Exposition, Treasure Island 800-M-c-86 1939
All available water is exhausted. The plant is at the P.W.P. Panel 5, photo 4. Irrigation Exhibit, Golden Gate International Exposition, Treasure Island 800-M-c-87 1939
Transpiration rates in relation to moisture content of the soil. C.A. Taylor residence, Monroe St., Pomona, Calif 800-M-c-88 1934 Summer
With any given soil all plants wilt at the same moisture content, the P.W.P. Panel 5, upper. Photo 5. Irrigation Exhibit, Golden Gate International Exposition, Treasure Island, 1939 800-M-c-89 1939
Scalding Study - Dead trefoil plant found in irrigated pasture on Conway Ranch, NE of Davis. The soil is a heavy, impermeable clay, and had been irrigated 2-3 days previously. Throughout the border there were visible dead trefoil plants in small depressions where water might have stood longer, and usually there were bald spots of bare earth surrounding these dead plants, where other fescue grass, quite vigorous, and trefoil, which scalded pretty badly, though it seems to be more tolerant than alfalfa. The week during which these events occurred had maximum air temperatures of 105 to 112 degrees F. Irrigation water from Sacramento River 800-M-d-1 1950 August 19
Scalding study - dead alfalfa plants found in irrigated pasture on Conway Ranch, NE of Davis. The soil is heavy impermeable clay, and was still soggy from an irrigation one or two days previously. The dead alfalfa was very noticeable throughout the border, surrounded by vigorous growth of fescue grass, trefoil, and ladino clover. The alfalfa scalded out especially in localized low spots in the field. The week during which these events took place had maximum air temperature of 105 to 112 degrees F. Irrigation water is Sacramento River Water 800-M-d-2 1950 August 19
Scalding Study - Dead Alfalfa plants found in irrigated pasture on Conway Ranch, NE of Davis. The soil is a heavy impermeable clay, and was still soggy from an irrigation one or two days previously. The dead alfalfa was very noticeable throughout the border, surrounded by vigorous growth of fescue grass, trefoil, and ladino clover. the alfalfa scalded out especially in localized low spots in the field. The week during which these events took place had maximum air temperatures of 105 to 112 degrees F. Irrigation water is Sacramento River water 800-M-d-3 1950 August 19
Root extension of prune tree into post hole during growing season. Ellis place, Marysville 800-M-e-1 1924
(Pom. Neg. D-4270) The accumulation of roots of plants in the moist soil in the immediate vicinity of the porous clay auto-irrigators 800-M-e-2 1930 May 1
Sunflower and bean plants in waxed wire basket surrounded with dry soil. The wilting of the plants indicates that the roots have permeated the soil inside the basket 800-M-e-3 1930 April 30
Influence of dry soil on root extension. Roots pushed through the holes in the bottom plate of the waxed wire basket and grew into the moist soil. This is a bottom view of the basket shown in Picture no. 800-M-e-3 800-M-e-4 1930 August 1
(Pom. Neg. 4365) Penetration of roots through the waxed partition when there was moist soil on both sides 800-M-e-5 1930 May 1
(Pom. Neg. D-4263) Sunflower plants grown in galvanized iron troughs, divided into three sections which are separated by waxed partitions and contain wet and dry soil. Center section covered with glass contains the dry soil 800-M-e-7 1930 April 30
(Pom. Neg. D-4262) Sunflower plants grown in troughs to determine root growth in moist and dry soil 800-M-e-8 1930 April 30
(Pom. Neg. D-4272) The waxed wire basket with sunflower and bean plant which had been surrounded with dry soil for 47 days 800-M-e-10 1930 May 1
(Pom. Neg. 4365) The can containing the waxed wire basket with the plants, sunflower and soy benas, was cut to expose the soil 800-M-e-11 1930 August 1
View showing extent of root distribution of mature apricot tree, University Farm, Davis. Excavated in 1924 (several views) 800-M-e-13 1924 January 29
Another view of root distribution of mature apricot tree shown in preceding picture 800-M-e-14 1924 January 29
View of mature apricot tree, University Farm, on which observations were made of the root distribution. Pictures 800-M-e-13 and 14 show the extent of distribution 800-M-e-15 1924 January 29
Extension of root growth of cotton plants, San Joaquin Valley. See 800-C-c-32, 33, 34, 35, 36, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 51 800-M-e 1931
Fig. 20-Areas of cross-section of trunks of Muir Peach trees, Davis. --Hilgardia Vol. 2, No. 6 - Veihmeyer, Frank J 800-M-f-1 1926
Soil-moisture conditions in the prune orchard in 1928. Fig. 5. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. A.H.H. and Veihmeyer, Frank J 800-M-f-2 1929
Soil-moisture conditions in the prune orchard in 1930. Fig. 6. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. A.H.H. and Veihmeyer, Frank J 800-M-f-3 1931
Soil-moisture conditions in the prune orchard in 1932. Fig. 7. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. A.H.H. and Veihmeyer, Frank J 800-M-f-4 1933
Average soil-moisture conditions in the top 6 feet in 1932. Fig. 7. Calif. Agr. Exp. Sta. Bul. 573. Irrig. Exper. with Prunes. A.H.H. and Veihmeyer, Frank J 800-M-f-5 1933
Average growth of the prune trees from 1919 to 1932, inclusive. Fig. 9. Calif. Agr.Exp.Sta.Bul. 573. Irrig. Exp. with Prunes. By A.H.H. and Veihmeyer, Frank J 800-M-f-6 1933
A typical prune tree in treatment A; February 1, 1933. Fig. 10. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. By A.H.H. and Veihmeyer, Frank J 800-M-f-7 1933 February 01
A typical prune tree in treatment D; Feb. 1, 1933. Fig. 11, Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. By A.H.H. and Veihmeyer, Frank J 800-M-f-8 1933 February 01
Average cumulative yields from 1927 to 1932, inclusive. Fig. 12. Calif. Agr. Exp. Sta. Bul. 573. 1934. Irrig. Exp. with Prunes. By A.H.H. and Veihmeyer, Frank J 800-M-f-9 1933
Growth of the prunes in 1932. Fig.13. Calif. Agr. Exp. Sta. Bul. 573. Irrig. experiments with prunes. By A.H.Hendrickson and Veihmeyer, Frank J. 800-M-f-10 1933
Imperial Valley. Experiment Farmer, University of California. These trees all planted same time. End trees receive sufficient water. Those in middle dying for want of water. Grade of irrigating furrow too steep with insufficient penetration of water 800-M-f-14 1917 July 5
Availability of water to plants; sunflowers in Yolo clay soil, moisture contents 30, 23, 20, 16, 15, 14.5% on successive dates 800-M-f-16 undated
Wet and dry plots, Babera grapes, Pattey vineyard. Asti Sonoma County. Mr. Hendrickson standing in vineyard 800-M-f-17 1938 August 23
Tanks and weighing equipment used in alfalfa studies (See 800-M-a-21) 800-N-a undated
Sugar beets growing in tanks in use of water studies. Reclamation Dist. 999 (See 800-D-a-15) 800-N-d undated
Water requirement studies. Prune orchard No. 2, Santa Clara Valley, Calif. showing condition of soil and trees. (Hilgardia, Vol. 2, No. 6, Fig. 1) 800-N-e-1 1920 October 4
Irrigated and unirrigated orchards. The irrigated allows early starting of cover crop which probably justifies the expense of irrigation even if no other benefit were derived from the application of water 800-N-e-2 1920 October
Irrigation of orchard No. 4. The same amount of water is applied in basins around each tree, insuring a uniform distribution of moisture. (Hilgardia, Vol. 2, No. 6, Fig. 3.) 800-N-e-3 1920 November 1
Water requirements of deciduous orchards. Condition of trees, orchard No. 5 on Nov. 1, 1920. Santa Clara Valley, Cal. (Hilgardia, Vol. 2, #6, F.2.) 800-N-e-4 1920 November 1
Water requirement studies. View from Bowden's tank house, Santa Clara Valley. Experimental prune orchard, showing line of demarcation between the two orchards, one irrigated and the other unirrigated 800-N-e-5 1921
Water requirement studies. View from Bowden's tank house, Santa Clara Valley. Experimental prune orchard, showing line of demarcation between the two orchards, one being irrigated and the other unirrigated 800-N-e-6 1921
Water requirement studies. View from Bowden's tank house, Santa Clara Valley. Experimental prune orchard, showing line of demarcation between the two orchards, one being irrigated and the other unirrigated 800-N-e-7 1921
Irrigating "A" treatment plots, experimental prune orchard University Farm, Davis 800-N-e-8 1931 August 29
Row 1, Tree 7 in Experimental Prune orchard, Davis at 12 years of age 800-N-e-9 1929 January 15
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