Series 1. Personal Correspondence
Anderson, George H. 1929, 1932, 1936-1939, undated
Arnold, Ralph 1925-1927, 1931
Balch, Allan C. 1935-1937
Benioff, Hugo 1934, 1938-1939, 1946,
Bush, Vannevar 1939, 1941-1942, undated
Byerly, Perry 1935-1942, 1944-1954
Davis, William Morris 1921, 1925-1928, 1930-1936, 1938, 1962-1963, undated
Day, Arthur L. 1931-1932, 1934-1938, undated
DuBridge, Lee A. 1947
A-D Miscellaneous
Scope and Content Note
Fraser, Horace J. 1934-1936, 1946, undated
Gilbert, Grove Karl 1917-1918, 1921, 1950, undated
Grant, U. S. 1953-1954
Gutenberg, Beno 1929-1930, 1932, 1942, 1945, 1953
Hale, George Ellery 1927, 1929
Hopper, Richard H. 1940-1941, 1944-1947
Jahns, Richard H. 1937-1938, 1943, 1945, undated
E-J Miscellaneous
Scope and Content Note
Martel, R. R. 1925, 1927, 1933, undated
Maxson, John H. 1935, 1937-1938, 1941-1946, 1950, undated
Merriam, John C. 1917-1919, 1924-1931
Merriam, John C. 1932-1939
Merriam, John C. 1940-1942, undated
Millikan, Robert A. 1925, 1927, 1930-1931, 1933-1937, 1939, 1948
Mudd Family 1938-1940, 1942-1943, 1953, undated
K-O Miscellaneous
Scope and Content Note
Ransome, Frederick L. 1923, 1927, 1935-1936, 1939, undated
Ricketts, Louis D. 1926, 1928, 1942, undated
Rieber, Frank 1945-1947
Stock, Chester 1925-1929, 1933, 1936, 1943, 1946-1947, 1950-1952, undated
Weaver, Charles E. 1945, 1950-1951
Willis, Bailey 1926-1928, 1934-1935, 1937, 1940, 1945, 1947
Wood, Harry O. 1923, 1925-1926, 1929, 1933, 1936-1938, 1940-1941, 1949, undated
Woodring, Wendell P. 1927, 1930, 1934, 1937-1938, undated
P-Z Miscellaneous
Scope and Content Note
Series 2. Organizational Correspondence and Documents
Advisory Committee in Seismology--Carnegie Institution 1926-1937, 1948, 1954
American Association for the Advancement of Science 1931
American Association of Petroleum Geologists 1933, 1945
American Geological Institute 1951
American Geophysical Union 1925, 1927-1931, 1933-1934, 1936-1945, 1947, 1951, 1953, undated
American Society of Mechanical Engineers 1933
Building Owners and Managers Association of Los Angeles 1935, undated
Carnegie Institution of Washington 1927-1930, 1932-1935, 1937-1940
Dept. of the Interior: National Parks Service 1928-1929, 1931, 1936, 1940, 1942, 1944, undated
Dept. of the Interior: U. S. Geological Survey 1917-1919, 1921-1922
Earthquake Engineering Research Institute 1951
Geological Council of America 1943
Geological Society of America 1935, 1939, 1951, undated
International Union of Geodesy and Geophysics 1938-1939
Joshua Tree National Monument 1930, 1942, 1949, 1954, undated
Journal of Geomorphology 1937-1938
Journal of Geophysics 1934-1936
Kings Canyon National Park 1938-1939, undated
Los Angeles City Emergency Corps 1940-1941, 1944-1948
National Academy of Sciences 1934
National Parks Association 1926, 1936-1939
National Research Council Shoreline Committee 1923, 1926-1932, 1934-1935, 1938, 1951, undated
Oregon State Parks 1928, 1932, 1939-1942, 1945, undated
Owens Valley Area of California 1929, 1939, undated
Parks 1928, 1938, 1944, 1954
Seismological Society of America 1921-1922, 1924, 1928-1933, 1935-1949, 1951-1954, undated
Sequoia National Park 1937, undated
Southern California Council on Earthquake Protection 1925-1926, undated
Southern California Teachers' Institute 1925
State Board of Registration for Civil and Professional Engineers 1948-1949
U. S. Coast and Geodetic Survey: General 1926, 1928, 1931-1938
U. S. Coast and Geodetic Survey: General 1940-1942, 1945-1953, undated
U. S. Coast and Geodetic Survey: Identification Process 1934
U. S. Navy: Department of 1937
U. S. Navy: Twelfth Naval District 1937
U. S. Navy: U. S. Naval Observatory 1937, 1942
Series 3. Caltech-Related Correspondence and Documents
Alumni Day Seminar 1953
Assistantships 1926-1928, 1931, 1934-1935
Associates Symposium 1952-1953
Branner Club 1935, 1937, 1956
Committees 1927-1934, 1938-1941, 1943-1947, 1949, 1951-1954, undated
Dormitories 1923, 1928-1929, 1945, undated
Executive Committee 1946
Curriculum Planning 1917, 1925-1927, 1929, 1935, 1937-1938, 1948, 1953, undated
Dedication of Palomar Observatory 1948, 1953
Department Finances 1926, 1932, 1936-1939
Employment of Faculty 1928, 1934-1935, 1937-1938, 1941, 1945, 1947, 1952
Foreign Students at Caltech 1927-1932, 1934, 1938, 1940, 1943-1947, 1949-1951, 1953-1954, undated
Geology Division: Annual Reports 1927-1929, 1942, 1953
Geology Division: Meteorology/Post-War Adjustment 1945-1948, undated
Geology Division: General 1935
Geology Division: General 1940-1945, undated
Geology Division: General 1946, 1951, undated
Geology Field Trips 1922, 1926-1928, 1930, 1937-1939, 1943-1944, undated
Geology Instruction 1941
Geology Library 1925-1928, 1938, 1940-1941, 1943, 1946-1947, undated
Graduate Students 1926, 1942-1943, undated
Lectures and Speakers 1925-1926, 1940
New Geology Building 1929-1931, 1933, 1935-1939, 1941, 1945, undated
Rift Club 1925-1940, 1946-1947, 1952, undated
Seismological Laboratory: Industrial Sponsors 1932, 1938-1939, 1942, 1944-1946, 1952, 1956, undated
Seismological Laboratory: Background 1926, 1930-1933, undated
Seismological Laboratory: Reports 1934, 1938-1942
WPA Projects 1935-1936, undated
Series 4. Technical Correspondence and Notes
Building Safety 1925, 1934-1936, 1952, 1954
Conservation 1890, 1928-1929, 1936, 1940-1942, 1947, 1953, 1956
Crystallography 1930, undated
Determining the Age of Rocks 1929, 1932-1935, 1944, undated
Earthquake Activity in the Pacific Northwest 1932, 1934, 1936, 1939, 1942, 1952-1953, undated
Earthquake Hazard in Mojave 1953
Earthquake Levelling 1933
Earthquake Risk 1934, 1940, 1944-1945
Engineering Geology 1937, 1939-1941, 1948-1951, 1954
Engineering Seismology 1938, 1948, 1951-1952, undated
Fort Tejon 1859
Frazier Mountain 1929, 1935-1936, 1938, 1954
Gardena Earthquake 1941, undated
Geology of Petroleum 1919, 1921, 1925-1930, 1936, 1939-1942, 1945-1948, 1955, undated
Geology of the Ridge Route Region (Hwy. 99) undated
Geophysics 1932, 1939, 1941, 1945
Geophysics and Oil 1932, 1936, 1950
Glaciers 1927, 1932
Gravimetric Profile Project 1934, 1940
Haywards Rift 1925, undated
Historical Earthquakes 1857, 1927, 1933, 1940, 1952-1953, undated
Long Beach Earthquake 1933
Maps/Charts 1913, 1928, 1932-1933
Memos to Buwalda 1940-1941, 1956, undated
Mineralogy 1919, 1927-1928, 1930-1931, 1933, 1936-1940, 1944-1946, undated
"Nut" Letters 1924, 1928, 1931-1937, 1940-1942, 1944, 1946, 1952, undated
Press Releases 1927, 1934, 1952, 1954, undated
Paleontology: General 1926-1927, 1930-1932, 1934-1935, 1937-1939, 1942, 1944, 1949-1950, 1954
Paleontology: Invertebrate 1919, 1927-1928, 1937, 1939, 1941
Paleontology: Vertebrate 1918-1924, 1926-1928, 1930, 1932, 1935-1936, 1938-1940, 1943-1944, 1948, 1951-1953, undated
Research: General 1917, 1927-1928, 1930-1931, 1937, 1941-1942, 1945, undated
Research: Specific 1919, 1930-1932, 1934-1936, 1947-1948, undated
San Andreas Fault 1952
San Francisco-Oakland Bay Bridge 1938,
Santa Barbara Earthquake 1925
Sedimentary Petrography 1919, 1938, undated
Seismic Reflection Prospecting 1936
Seismological Station 1938-1939, 1942, 1944-1945, 1947
Site for San Diego Civic Center 1933-1934
Smog 1954, undated
Stress Research 1925, 1929, 1931, 1951-1952, undated
Subsidence-Long Beach 1932, 1935, 1941, 1945-1946, 1950, undated
Tehachapi Region 1934, 1939, 1946, 1951-1954
Transmutation of Elements 1935
Trip to Mexico 1944-1945, undated
Volcanoes 1936, 1938, 1944, 1947, 1952, 1956-1957, undated
Yellowstone-Beartooth-Bighorn Project 1932-1937, undated
Yosemite National Park 1930, 1932-1933, 1935, 1937-1942, 1952, undated
Yosemite National Park: Brochures and Photos 1950-1954, 1956, undated
Yosemite National Park: Yosemite Valley Geophysical Investigation 1931, 1934-1939, undated
Series 5. Lectures, Manuscripts, Talks
Abstracts and Outlines 1923, 1928, undated
Articles 1924, 1934-1935, 1939, 1948-1949, 1954, undated
Lectures 1930, 1933-1936, 1938, undated
Lectures and Talks 1922, 1925, 1927-1929, 1931, 1952, 1957, undated
Manuscript: "Exploring and Depths of the Earth" undated
Manuscripts 1933, 1942, undated
Merriam: Synopsis of Lectures in Palaeontology 1 and Eight Lectures, "The History of Life" 1922, 1928, 1942
News Clippings 1933-1935, 1940, 1948-1949, 1955-1957, undated
News Clippings and Articles 1915, 1923, 1936-1937, 1940, 1947, 1949-1950, 1953-1954, 1957-1958, 1964, 1966, 1971-1972, undated
Printed Matter 1914, 1929, 1931, 1933, 1938-1939, 1941, 1952, 1954-1956, 1958, 1962, undated
Publications 1952, 1957
Reports: "Earthquake Hazard and Earthquake Protection" 1933
"Seismic-Acoustic Experiments, San Francisco Bay, 1937-1939" 1939, undated
Reports/Statements 1930, 1935, 1938, 1941, undated
Reprints by Others 1923, 1949, 1952
Richter, Charles F.: "Seismic History" undated
Speeches by Others 1927
Series 6. Personal
Balch Correspondence 1941, 1943, undated
Biographical and Personal Information 1917-1918, 1945, 1948, 1955-1956, undated
Buwalda's Retirement as Division Chairman 1946-1947, undated
Correspondence with Family Members 1914-1915, 1917-1922, 1937, 1943-1944, 1946, undated
Hiring of Buwalda 1925, undated
Sale of Personal Library 1955
Radio Broadcasts 1935-1937, 1942,
Series 7. Notebooks
Notebooks and Field Notes 1918-1919, undated
Notebooks
Scope and Content Note
Series 8. Miscellaneous
Photographs undated
Book: Earthquakes in Kern County, California During 1952 undated
Series 9. Imra Wann Buwalda
"The Roots of the California Institute of Technology": Chapters 1-8 1963, undated
"The Roots of the California Institute of Technology": Chapters 9-19 undated
"The Roots of the California Institute of Technology": Chapters 20-25 undated
"The Roots of the California Institute of Technology": Chapters 26-Epilogue undated
"The Roots of the California Institute of Technology, 1891-1929" (second version) undated
"Caltech from the Wings" undated
"Throop Institute of Technology, 1908-1913" undated
"The Scherer Years, 1908-1920" undated
"Phantasmagoria" undated
"Caltech, the Community, and the Arts" undated
Earthquake manuscript: first version undated
Earthquake manuscript: second version undated
"Earthquakes and Other Growing Pains" undated
Correspondence related to "Earthquakes" manuscript 1957-1960, 1962, undated
Permissions to quote re: "Earthquakes" 1959, undated
"Earthquake: Could It Happen Here?" 1975, undated
"Afraid of Earthquakes? Who Isn't?" undated
"A Ship to Ride the Quakes" undated
"Thank God for Earthquakes" undated
"William Money, Earthquakes, and Seismological Engineering in San Gabriel, CA in the Mid-Nineteenth Century" undated
Partial Manuscripts and Miscellaneous Material undated
Biographical Material and Family Correspondence 1917, 1921, 1927, 1938, 1952, undated
California Institute for Cancer Research 1955-1956
City of Pasadena 1927, 1930, 1935, 1939-1941, undated
Correspondence: General 1917, 1939, 1942, 1950, 1952, 1954-1955, 1959-1963, 1965-1966, 1969, undated
Correspondence: Wu, Chien-Shiung 1959, 1966, 1969, 1971, 1974, undated
McKenzie, R. Tait: Printed Matter 1923, 1926, 1928, undated
Police Work 1929, 1935-1936, 1944-1945, 1974-1976, undated
Throop Universalist Church: Correspondence and Printed Matter 1961, 1964-1966
Imra Buwalda Oral History by Betty Lowenstam 1980-1981, undated