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Francis Gladheim Pease Papers: Finding Aid
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Table of contents What's This?

Collection Contents

Box 1

Correspondence, A – G

Folder 1

Charles Greeley ABBOT (1923-1928). 3 items.

Folder 2

Giorgio ABETTI, recipient (1921-1924). 5 items.

Folder 3

C. E. ADAMS (1915-1916). 2 items.

Folder 4

Walter Sydney ADAMS, recipient (1924, May 1). 1 item.

Folder 5

Robert Grant AITKEN (1915-1932). 10 items.

Folder 6

ALUMINUM CASTING Company, recipient (1925, Feb. 13). 1 item.

Folder 7

ALUMINUM Company of America, recipient (1925-1926). 5 items.

Folder 8

AMALGAMATED PRESS Limited, recipient (1926, Aug. 9). 1 item.

Folder 9

AMERICAN CHEMICAL SOCIETY, recipient (1917, Oct. 2). 1 item.

Folder 10

AMERICAN OPTICAL Company (1919-1920). 3 items.

Folder 11

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (1917-1930). 21 items.

Includes typed copy of talk given by Pease (1923, Apr. 17).
Folder 12

John August ANDERSON (1912-1915). 7 items.

Folder 13

ARMOUR ENGINEER (1920-1925). 10 items.

Includes typed copy of “The Fifty-Foot Interferometer Telescope of the Mount Wilson Observatory” by Pease (1901).
Folder 14

ARMOUR INSTITUTE OF TECHNOLOGY (1922-1926). 2 items.

Folder 15

James Percy AULT (1916-1922). 4 items.

Includes signed, printed copy of "Sailing the Seven Seas in the Interest of Science," by Ault (1922).
Folder 16

S. A. BAGGS, recipient (1929). 2 items.

Folder 17

Solon Irving BAILEY, recipient (1920, Nov. 16). 1 item.

Folder 18

BAKER Iron Works (1923, Mar. 1). 1 item.

Folder 19

Edward Emerson BARNARD (1913-1922). 17 items.

Folder 20

C. F. BARTH (1927). 3 items.

Folder 21

BAUSCH & LOMB Optical Company (1920-1930). 13 items.

Folder 22

Bernard BENFIELD, recipient (1925, June 8). 1 item.

Folder 23

Charles Henry BENJAMIN (1926, Jan. 12). 1 item.

Folder 24

M. A. BLAGG (1921, Sep. 1). 1 item.

Folder 25

Frank Parkhurst BRACKETT (1922). 2 items.

Folder 26

John Alfred BRASHEAR Company, recipient (1920, Mar. 1). 1 item.

Folder 27

Lyman James BRIGGS, recipient (1924, July 3). 1 item.

Folder 28

Paul BROCKETT, Secretary of the National Academy of Sciences Building/Exhibits Committees (1923-1933). 38 items.

Folder 29

Lynn H. BRYANT, recipient (1924, Oct. 17). 1 item.

Folder 30

BUREAU OF STANDARDS, US (1912-1934). 6 items.

Folder 31

C. H. BURNETT, recipient (1927, Nov. 23). 1 item.

Folder 32

William Wallace CAMPBELL (1916-1917). 3 items.

Folder 33

CARNEGIE INSTITUTION OF WASHINGTON (1925-1936). 3 items.

Folder 34

Ford Ashman CARPENTER, recipient (1924, July 30). 1 item.

Folder 35

CHANCE BROTHERS and Company, Limited (1932, Oct. 20). 1 item.

Folder 36

Walter Gordon CLARK (1931). 2 items.

Folder 37

Frederic Edward CLEMENTS (1925). 3 items.

Folder 38

Herbert COATES (1920, Mar. 16). 1 item.

Folder 39

COOKE, Troughton & Simms, Limited (1922-1923). 3 items.

Folder 40

CORNING Glass Works (1922-1935). 43 items.

Folder 41

Francisco COS (1929). 2 items.

Folder 42

Henry CREW (1925). 3 items.

Folder 43

CRUCIBLE STEEL Company of America (1923-1930). 50 items.

Folder 44

Clifford Charles CRUMP (1917-1927). 17 items.

Folder 45

Heber Doust CURTIS (1913-1917). 3 items.

Folder 46

Robert Long DAUGHERTY (1921, Apr. 10). 1 item.

Folder 47

William S. DAVENPORT (1917, Aug. 31). 1 item.

Folder 48

Arthur Louis DAY (1926-1934). 11 items.

Folder 49

Peter DOIG (1925, Sep. 26). 1 item.

Folder 50

DOUBLEDAY, Page & company, recipient (1924, Jan. 9). 1 item.

Folder 51

Donald Wills DOUGLAS (1925). 3 items.

Folder 52

Andrew Ellicott DOUGLASS (1923-1930). 11 items.

Folder 53

Harry L. DUNCAN, recipient (1927, Apr. 12). 1 item.

Folder 54

Gano DUN (1923). 7 items.

Box 2

Correspondence, E – P

Folder 1

Ezra S. EATON (1932). 2 items.

Folder 2

Arthur Stanley EDDINGTON, recipient (1922-1925). 3 items.

Folder 3

W. C. ELLIOT, recipient (1927, Jan. 9). 1 item.

Folder 4

William Le Roy EMMET (1932). 2 items.

Includes typed manuscript "Why the Markings on the Moon's Surface Cannot Be of Volcanic Origin" (1932).
Folder 5

Charles FABRY, recipient (1929-1932). 2 items.

Folder 6

J. W. FECKER Company (1927-1928). 8 items.

Folder 7

FISH-SCHURMAN Corporation (1928-1931). 16 items.

Folder 8

Ernest Harrison FREEMAN, recipient (1921, Aug. 3). 1 item.

Folder 9

Erwin Finlay FREUNDLICH, recipient (1926-1931). 2 items.

Folder 10

W. R. FURLONG, recipient (1922-1925). 3 items.

Folder 11

GAERTNER SCIENTIFIC Corporation (1927). 5 items.

Folder 12

Henry Gordon GALE (1932-1933). 3 items.

Folder 13

Willard Hayes GARRETT (1926, Oct. 18). 1 item.

Folder 14

George F. GEBHARDT, recipient (1917, Nov. 15). 1 item.

Folder 15

GENERAL ELECTRIC Company (1924-1932). 14 items.

Folder 16

Curvin Henry GINGRICH (1924, July 10). 1 item.

Folder 17

M. GOEPPINGER (1927). 2 items.

Folder 18

Walter GOODACRE (1934, Apr. 9). 1 item.

Folder 19

Bertram Grosvenor GOODHUE (1922-1923). 6 items.

Folder 20

K. GRAFF, recipient (1923, Jan. 20). 1 item.

Folder 21

GRIFFITH Machine Works, recipient (1917, Nov. 15). 1 item.

Folder 22

Sir Howard GRUBB, Parsons & Company (1928). 5 items.

Folder 23

Samuel E. W. HAINES, recipient (1927, Feb. 26). 1 item.

Folder 24

George Ellery HALE (1921-1927). 10 items.

Folder 25

Ford W. HARRIS, recipient (1927, June 20). 1 item.

Folder 26

Elwood HAYNES, recipient (1920, June 25). 1 item.

Folder 27

Fred C. HENSON Company (1927). 3 items.

Folder 28

HERCULES Float Works, recipient (1927). 2 items.

Folder 29

Ejnar HERTZSPRUNG (1922-1925). 5 items.

Folder 30

HESS-BRIGHT Manufacturing Company (1905, Nov. 14). 1 item. Includes diagram.

Folder 31

E. M. HEWLETT (1919-1924). 3 items.

Folder 32

H. S. HITCHCOCK [undated]. 1 item.

Folder 33

L. F. S. HOLLAND, recipient (1927). 2 items.

Folder 34

Henry E. HUNTINGTON LIBRARY, recipient (1925, June 4). 1 item.

Folder 35

Albert G. INGALLS (1927). 2 items.

Folder 36

Herbert Eugene IVES, recipient (1920, Aug. 2). 1 item.

Folder 37

James Hopwood JEANS (1917-1923). 4 items.

Folder 38

Lloyd Theodore JONES (1929). 5 items.

Folder 39

Clinton K. JUDY, recipient (1922, Dec. 24). 1 item.

Folder 40

Carl S. KEGLEY, recipient (1923, Feb. 28). 1 item.

Folder 41

Vernon Lyman KELLOGG (1922). 2 items.

Folder 42

Roy James KENNEDY, recipient (1925, July 9). 1 item.

Folder 43

KEUFFEL & ESSER Company, recipient (1924, Aug. 6). 1 item.

Folder 44

William S. KLEIN (1934, Apr. 20). 1 item.

Folder 45

Josef KLEPESTA, recipient (1929, Apr. 4). 1 item.

Folder 46

B. W. LAWTON, recipient (1925, Oct. 9). 1 item.

Folder 47

E. LOHMANN, recipient (1928, Aug. 14). 1 item.

Folder 48

G. H. LUTZ (1927, May 15). 1 item.

Folder 49

A. A. MacCALLUM, recipient (1924, May 16). 1 item.

Folder 50

Edwin Carleton MacDOWELL (1933). 2 items.

Folder 51

J. B. McDOWELL Company (1922-1924). 18 items.

Folder 52

Mentore MAGGINI, recipient (1924, May 19). 1 item.

Folder 53

John E. MELLISH (1927). 2 items.

Folder 54

John Campbell MERRIAM (1926). 2 items.

Folder 55

Albert Abraham MICHELSON (1921- 1930). 3 items.

Folder 56

G. R. MICZAIKA (1935, Nov. 4). 1 item.

Folder 57

Georges MIGNOT (1936). 2 items.

Folder 58

John Anthony MILLER (1921). 4 items.

Folder 59

Robert Andrews MILLIKAN (1917-1928). 3 items.

Folder 60

Edward MITTENDORF (1933, Jan. 6). 1 item.

Folder 61

George Wilber MOFFITT (1922). 2 items.

Includes a letter by Moffitt to George Ellery Hale (1922, Feb. 9).
Folder 62

Forest Ray MOULTON (1924, July 22). 1 item.

Folder 63

Seeley Wintersmith MUDD, recipient (1917-1918). 2 items.

Folder 64

Paul M. MUELLER, recipient (1922). 2 items.

Folder 65

NATIONAL RESEARCH COUNCIL (1918-1922). 5 items.

Folder 66

Alfred N. NEATE (1934-1936). 5 items.

Folder 67

B. B. NICHOLS, recipient (1927). 2 items.

Folder 68

Brian O'BRIEN (1933, Nov. 4). 1 item.

Folder 69

Thomas H. OSGOOD, recipient (1928, June 25). 1 item.

Folder 70

J. H. PARKER (1929, July 13). 1 item.

Folder 71

PARSONS Optical Glass Company (1927-1933). 13 items.

Folder 72

PASADENA (Calif.) (1922, July 6). 1 item.

Folder 73

Fred PEARSON (1926-1932). 3 items.

Folder 74

Charles PENROSE (1924-1925). 9 items.

Folder 75

Charles Dillon PERRINE, recipient (1924, Feb. 28). 1 item.

Folder 76

O. L. PETITDIDIER, recipient (1917, Oct. 27). 1 item.

Folder 77

Theodore E. R. PHILLIPS (1925, Dec. 28). 1 item.

Folder 78

Edward Charles PICKERING (1917, Oct. 31). 1 item.

Folder 79

H. C. PLUMMER, recipient (1923, May 23). 1 item.

Folder 80

POPULAR SCIENCE MONTHLY, recipient (1926, Nov. 20). 1 item.

Folder 81

Henry Smith PRITCHETT (1922-1927). 6 items.

Folder 82

Mary PROCTOR (1926-1930). 4 items.

Box 3

Correspondence, R – Y, Manuscripts and Miscellaneous

Folder 1

Jerome Sixtus RICARD (1926). 2 items.

Folder 2

Charles RIDELL (1928). 2 items.

Folder 3

John L. RIDGWAY (1922, July 17). 1 item.

Folder 4

F. E. ROGERS (1926). 2 items. Includes printed pamphlet, "Our Solar System," by Rogers (1926).

Folder 5

Frank Elmore ROSS (1921-1934). 36 items.

Folder 6

ROSS Limited, recipient (1923, May 4). 1 item.

Folder 7

Henry Norris RUSSELL (1922-1927). 8 items.

Folder 8

SCIENCE SERVICE, recipient (1925). 2 items.

Folder 9

SCIENTIFIC AMERICAN (1917-1930). 5 items.

Folder 10

Harlow SHAPLEY (1922-1925). 5 items.

Folder 11

Donald Ellsworth SHARP, recipient (1928). 2 items.

Folder 12

John Cutler SHEDD, recipient [undated]. 1 item.

Folder 13

Alexander SILVERMAN, recipient (1918, Dec. 26). 1 item. Co-addressee R. M. Howe.

Folder 14

SKF Industries of California Incorporated, recipient (1926). 2 items.

Folder 15

W. T. SKILLING (1937, Jan. 10). 1 item.

Folder 16

Vesto Melvin SLIPHER (1916-1922). 2 items.

Folder 17

Herbert L. SMITH, recipient (1917, Oct. 31). 1 item.

Folder 18

SMITHSONIAN INSTITUTION (1923-1928). 5 items.

Folder 19

SOUTHERN CALIFORNIA EDISON Company, recipient (1929, Aug. 2). 1 item.

Folder 20

SPENCER Lens Company (1921-1927). 33 items.

Folder 21

SPERRY GYROSOCOPE Company, recipient (1924). 2 items.

Folder 22

Julius SPRINGER Verlag , recipient (1931, Oct. 20). 1 item.

Folder 23

Joel STEBBINS, recipient (1924-1925). 2 items.

Folder 24

STEEL TANK AND PIPE Company, recipient (1929). 2 items.

Folder 25

Harlan True STETSON (1922-1930). 3 items.

Folder 26

De Lisle STEWART (1922-1923). 5 items.

Includes letter by Stewart to George Ellery Hale (1922, June 9).
Folder 27

R. P. STINEMAN, recipient (1926-1927). 2 items.

Folder 28

James STOKLEY (1933). 2 items.

Folder 29

P. W. STONER, recipient (1929, Feb. 4). 1 item.

Folder 30

Otto STRUVE (1933). 3 items.

Folder 31

Kenneth E. STUART (1925). 2 items.

Folder 32

Ambrose SWASEY (1925-1935). 2 items.

Folder 33

TAYLOR, Taylor & Hobson, recipient (1921, Sep. 19). 1 item.

Folder 34

Carl Clapp THOMAS (1929). 2 items.

Folder 35

TRUSCON Steel Company, recipient (1925, Sep. 26). 1 item.

Folder 36

Herbert Hall TURNER (1921-1925). 5 items.

Folder 37

UNITED STATES NAVAL OBSERVATORY (1933-1935). 2 items.

Folder 38

UNIVERSITY OF CALIFORNIA Press, recipient (1923, Dec. 5). 1 item.

Folder 39

Wilbur Rice VAN AUKEN (1921, Jan. 22). 1 item.

Folder 40

George VAN BIESBROECK (1926, Mar. 29). 1 item. 41. J. VAURIE (1922-1929). 18 items.

Folder 42

H. C. WILLIAMS, recipient (1923, Nov. 5). 1 item.

Folder 43

Latimer J. WILSON (1925-1936). 19 items. Includes 9 photographs of the moon.

Folder 44

John C. WINSTON Company, recipient (1922, June 23). 1 item.

Folder 45

John Eliot WOLFF, recipient (1928, May 4). 1 item.

Folder 46

Robert Williams WOOD (1920-1924). 5 items.

Folder 47

Charles William WOODWORTH (1926). 3 items.

Folder 48

Frederick Eugene WRIGHT (1922-1936). 49 items.

Folder 49

William Hammond WRIGHT (1917-1937). 24 items.

Includes 5 photographs of Mars and 2 photographs of Jupiter.
Folder 50

Ch'ing-Sung YU (1926). 2 items.

Folder 51

"Astronomical Telescopes: lecture" [c.1925]. 1 item. Autograph manuscript, 22 p., by Pease.

Folder 52

"On Increased Telescopic Penetration:” [manuscript] (1926, May 26). 1 item.

Typed manuscript, 18 p., by Pease. Corrections and comments in pencil by Frederick Hanley Seares.
Folder 53

"Measurement of the Velocity of Light in a Partial Vacuum:" [manuscript] (1923, Sep. 30). 7 items.

Typed manuscript, 45 p. with 6 photographs for use as figures, by Albert Abraham Michelson, Pease, and Fred Pearson, published in Astrophysical Journal, vol. 82, 1935.
Folder 54

"Measurement of the Velocity of Light in a Partial Vacuum:" [copy proof] (1935). 1 item.

15 p., by Albert Abraham Michelson, Pease, and Fred Pearson, published in Astrophysical Journal, vol. 82, 1935.]
Folder 55

Miscellaneous photographs (1877-1919). 4 items.

  • (1) Letter Elisha Gray to Alexander Graham Bell, March 5, 1877 [2 prints total]
  • (2) Gibbous Moon [undated]
  • (3) Southern portion of the Moon at last quarter, made with the 100-inch Hooker Telescope (1919, Sep. 15)
Folder 56

Loose Pages [undated]. 2 items.

Box 4

Velocity of Light Records

Folder 1

Velocity of Light Records (2): Correspondence & Miscellaneous: Correspondence with U. S. Coast and Geodetic Survey (1928-1937). 59 items.

Folder 2

Velocity of Light Records (2): Correspondence & Miscellaneous: Other Correspondence (1924-1934). 37 items.

Folder 3

Velocity of Light Records (2): Correspondence & Miscellaneous: Notes, Sketches, Pamphlets, Photograph (negative), etc. (1920-1934). 44 items.

Folder 4

Velocity of Light Records (2): Manuscripts (1931-1934). 8 items.

Folder 5

Velocity of Light Records (2): Time Signals and Corrections (1932-1933). 241 items.

Folder 6

Velocity of Light Records (2): Survey Notebooks, Vols. 1-3 (1933). 3 items.

Box 5

100” Coudé Spectrograph – Miscellaneous #2

Folder 1

100” Coudé Spectrograph (1921-1934). 21 items.

Folder 2

Snow Telescope (1905-1929). 36 items.

Folder 3

Hale Solar Lab (1924-1927). 71 items.

Folder 4

Interferometer (1925-1937). 12 items.

Folder 5

50’ Interferometer (1922-1931). 37 items.

Folder 6

Mechanical and Optical Devices (1920-1937). 31 items.

Folder 7

General Notes: bound together (1910-1926). 1 item.

Folder 8

Miscellaneous #1 (1920-1936). 47 items.

Folder 9

Miscellaneous #2 (1918-1927). 60 items.

Box 6

Miscellaneous Correspondence, Manuscripts, Notes, Stellar Diameters

Folder 1

Miscellaneous Correspondence #1 (1927-1935). 29 items.

Folder 2

Miscellaneous Correspondence #2 (1923-1934). 59 items.

Folder 3

Miscellaneous Correspondence #3 (1922-1934). 84 items.

Folder 4

Manuscripts ([1934]-(1935). 7 items.

Folder 5

Notebook: notes from class lectures by Paul Epstein & H. A. Lorentz on quantum theory given at California Institute of Technology (1922). 1 item.

Folder 6

Blueprints & Reprint relating to the Solar Tower at Arcetri, Italy (1921). 8 items.

Folder 7

Stellar Diameters (1920-1931). 69 items.

Box 7

Nebulae and Interferometer Observations

Folder 1

Nebulae: Observations & Notes # 1 (1899-1919). Approximately 100 items.

Folder 2

Nebulae: Observations & Notes # 2 (1895-1919). Approximately 100 items.

Folder 3

Nebulae: Observations & Notes # 3 (1913-1919). Approximately 100 items.

Folder 4

Nebulae: Observations & Notes # 4 (1902-1919). Approximately 100 items.

Folder 5

Interferometer Observations (1906-1935). 24 items.

Box 8

Observations, Ether Drift, Lens, Optics and Reprints of Articles by Pease

Folder 1

Observations with the 100” (1924-1933). Approximately 100 items.

Cataloger’s Note: Other notes are included here, from other telescopes.
Folder 2

Notebook: Ether Drift Data (1927, Dec.-1928, Mar.). 1 item.

Folder 3

Lens Calculations (1930-1932). 6 items.

Folder 4

Articles on Glass & Telescopes (1850-1935). 13 items.

Folder 5

Notes: Optics [undated]. 2 items.

Cataloger’s Note: Negative is missing.
Folder 6

Reprints of Articles by Pease #1 (1914-1935). 7 items.

Folder 7

Reprints of Articles by Pease #2 (1915-1935). 11 items.

Box 9

Ether Drift Data and Estimated Telescope Weights

Folder 1

Ether Drift Ring Binder: Velocity of Light Materials #1 (1926-1933). Approximately 50 items.

Folder 2

Ether Drift Ring Binder: Velocity of Light Materials #2 (1926-1933). Approximately 50 items.

Folder 3

Ether Drift Ring Binder: Materials on Ether Drift (1926-1933). Approximately 50 items.

Folder 4

Ether Drift Data Dec. 1927-Mar. 1928: Notebook (1927-1928). Approximately 50 items.

Folder 5

Notebook: 100-inch Estimated [Telescopes] Weights #1 (1913-1914). Approximately 50 items.

Folder 6

Notebook: 100-inch Estimated [Telescopes] Weights #2 (1913-1914). Approximately 50 items.

Box 10

Velocity of Light Records: Data Cards & Sheets and Experiment Record Books

Folder 1

Velocity of Light Records (2): Data Cards & Sheets, Group A (1931-1933). Approximately 50 items.

Folder 2

Velocity of Light Records (2): Data Cards & Sheets, Group B (1932). Approximately 50 items.

Folder 3

Velocity of Light Records (2): Data Cards & Sheets, Group C (1932). Approximately 50 items.

Folder 4

Velocity of Light Records (2): Data Cards & Sheets, Group D (1932-1933). Approximately 50 items.

Folder 5

Velocity of Light Records (2): Data Cards & Sheets, Group E (1931-1933). Approximately 50 items.

Folder 6

Velocity of Light Records (2): Data Cards & Sheets, Group F (1931-1932). Approximately 20 items.

Folder 7

Velocity of Light Records (2): Volume 1: Record Book of Velocity of Light Experiments, Irvine Ranch (1931). 1 item.

Folder 8

Velocity of Light Records (2): Volume 2: Record Book of Velocity of Light Experiments, Irvine Ranch (1931). 1 item.

Folder 9

Velocity of Light Records (2): Volume 3: Record Book of Velocity of Light Experiments, Irvine Ranch (1932). 1 item.

Folder 10

Velocity of Light Records (2): Volume 4: Record Book of Velocity of Light Experiments, Irvine Ranch (1932). 1 item.

Folder 11

Velocity of Light Records (2): Volume 5: Record Book of Velocity of Light Experiments, Irvine Ranch (1932-1933). 1 item.

Folder 12

Velocity of Light Records (2): Volume 6: Record Book of Velocity of Light Experiments, Irvine Ranch (1933). 1 item.

Box 11

Velo cit y of Light Records: Tidal Force Curves and Original Chronograph Records

Folder 1

Velocity of Light Records (2): Tidal Force Curves, Series A: Vertical Component, Roll 3 (1933, Jan. 1-Mar. 15). 1 item.

Folder 2

Velocity of Light Records (2): Tidal Force Curves, Series B: Horizontal Component in Direction of Tube, Roll 6 (1933, Jan. 1-Mar. 15). 1 item.

Folder 3

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 7 (1931, Feb. 1-Dec. 31). 1 item.

Folder 4

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 8 (1932, Jan. 1-Dec. 31). 1 item.

Folder 5

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 9 (1933, Jan. 1-Mar. 15). 1 item.

Folder 6

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 10: Diurnal Constituents Only (1932, Dec. 1-1933, Mar. 1). 1 item.

Folder 7

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 11: Semidiurnal Constituents Only (1932, Dec. 1-1933, Mar. 1). 1 item.

Folder 8

Velocity of Light Records (2): Tidal Force Curves, Series C: Horizontal Component Perpendicular to Tube, Roll 12: Long-period Constituents Only (1932, Dec.1-1933, Mar. 1). 1 item.

Folder 9

Velocity of Light, Irvine Ranch: Original Chronograph Records, Radio Time Signals: roll tube (1931-1933). 1 item. With note about records.

Box 12

20-foot Interferometer and 100-inch Telescope

Folder 1

20-foot Interferometer Notebook (1920-1931). 52 items.

Folder 2

Notebook on Construction of 100-inch Telescope #1 (1913-1914). 4 items.

Folder 3

Notebook on Construction of 100-inch Telescope #2 (1913-1916). 34 items.

Folder 4

Sketch Sheets for 100-inch Telescope (1916-1919). 196 items.

Folder 5

Sketch Sheets for 100-inch Telescope (1917-1918). 8 items.

Folder 6

Notebook: 100-inch Reflector [undated]. 1 item.

Folder 7

Notebook: Polar Axis [100-inch Reflector] [undated]. 1 item.

Box 13

Stellar Diameter Note Cards, Notebook on Optical Glass

Folder 1

Stellar Diameter Note Cards – A (1935). 11 items.

Folder 2

Stellar Diameter Note Cards – B (1935). 3 items.

Folder 3

Stellar Diameter Note Cards – C (1900-1937). 20 items.

Folder 4

Stellar Diameter Note Cards – D (1921-1935). 2 items.

Folder 5

Stellar Diameter Note Cards – E (1900-1935). 6 items.

Folder 6

Stellar Diameter Note Cards – G (1920-1935). 5 items.

Folder 7

Stellar Diameter Note Cards – H (1900-1937). 4 items.

Folder 8

Stellar Diameter Note Cards – L (1900-1935). 11 items.

Folder 9

Stellar Diameter Note Cards – O (1920-1935). 7 items.

Folder 10

Stellar Diameter Note Cards – P (1920-1935). 11 items.

Folder 11

Stellar Diameter Note Cards – S (1921-1935). 4 items.

Folder 12

Stellar Diameter Note Cards – T (1900-1936). 2 items.

Folder 13

Stellar Diameter Note Cards – U (1900-1935). 10 items.

Folder 14

Stellar Diameter Note Cards – V (1900-1935). 3 items.

Folder 15

Stellar Diameter Note Cards – W [undated]. 2 items.

Folder 16

Notebook on Optical Glass (1895-1922). 1 item.

Box 14

Optical work at Yerkes Observatory and Photographs

Folder 1

Notebook of Optical Work at Yerkes Observatory (1901-1902, 1904). 1 item.

Folder 2

Notebook of Optical Work at Yerkes Observatory (1903). 1 item.

Folder 3

Brochures: Mount Wilson Observatory and Yerkes Observatory (1931-1933). 2 items.

Folder 4

Photographs: Galaxies, Stars and Nebulas (1910-1921). 21 items.

Folder 5

Photographs: Jupiter (1920). 2 items.

Folder 6

Photographs: Moon (1919). 5 items.

Folder 7

Photographs: Mount Wilson Observatory and Yerkes Observatory (1937). 16 items.

Folder 8

Photographs: People (some with telescopes) (1934). 10 items.

Folder 9

Photographs: Spectrums [undated]. 3 items.

Folder 10

Photographs: Sun (1917). 4 items.

Folder 11

Photographs: Telescopes and equipment (1930-1935). 56 items.

Box 15

Engineering Drawings & Notes, folders 1 – 5

Folder 1

Engineering Drawings & Notes #1 (1915-1918). 50 items.

Folder 2

Engineering Drawings & Notes #2 (1917-1922). 50 items.

Folder 3

Engineering Drawings & Notes #3 (1918). 51 items

Folder 4

Engineering Drawings & Notes #4 (1914-1935). 15 items.

Folder 5

Engineering Drawings & Notes #5 (1893-1927). 68 items.

Box 16

Engineering Drawings & Notes, folders 6 – 11

Folder 1

Engineering Drawings & Notes #6 (1904-1935). 50 items.

Folder 2

Engineering Drawings & Notes #7 (1915-1918). 50 items.

Folder 3

Engineering Drawings & Notes #8 (1916). 60 items.

Folder 4

Engineering Drawings & Notes #9 (1916-1919). 50 items.

Folder 5

Engineering Drawings & Notes #10 (1919-1920). 70 items.

Folder 6

Engineering Drawings & Notes #11 (1915-1931). 60 items.

Box 17

Engineering Drawings & Notes, folders 12 – 13

Folder 1

Engineering Drawings & Notes #12 (1916-1930). 15 items.

Folder 2

Engineering Drawings & Notes #13 (1904-1930). 56 items

Box 18

Articles, Manuscripts, Notes, Publications and Reprints

Folder 1

Articles: Witmer, Samuel (1933). 1 item.

Folder 2

Manuscripts: Pease, Francis G. (1907). 1 item.

Folder 3

Miscellaneous Notes and Letter (1899-1934). 4 items.

Folder 4

Miscellaneous Printed Items (1906-1915). 5 items.

Folder 5

Notes: Clusters (1913-1915). 13 items.

Folder 6

Notes: Jupiter (1899-1925). 5 items. 7. Notes: Novae (1901-1931). 23 items.

Folder 8

Notes: Photography (1909). 10 items.

Folder 9

Publications: Auerbach, Felix (1904). 1 item.

Folder 10

Reprints: Astronomical Institutes of the Netherlands (1920-1922). 6 items.

Folder 11

Reprints: Barnard, E. E. (1895, Aug.). 1 item.

Folder 12

Reprints: Cage, John M. (1930). 1 item.

Folder 13

Reprints: Campbell, W. W. (1900, Nov.). 1 item.

Folder 14

Reprints: Chamberlin, Thomas C. (1919-1927). 10 items.

Folder 15

Reprints: Coffin, J. H. C. (1873, Apr. 16). 1 item.

Folder 16

Reprints: Frost, Edwin B. (1902-1924). 2 items.

Folder 17

Reprints: Gould, B. A. (1895, Apr.). 1 item.

Folder 18

Reprints: Hertzsprung, Ejnar (1912-1923). 5 items.

Folder 19

Reprints: Jeans, J. H. (1924-1929). 4 items.

Folder 20

Reprints: Jeffries, Harold (1924, Dec.). 1 item.

Folder 21

Reprints: Kapteyn, J. C. (1906). 1 item.

Folder 22

Reprints: Mitchell, S. Alfred (1898). 1 item.

Folder 23

Reprints: Peirce, Benjamin [1880]. 1 item.

Folder 24

Reprints: Pickering, Edward C. (1882). 1 item.

Folder 25

Reprints: Ritchey, G. W. (1901, Nov.). 1 item.