Raymond Pearl Papers

Mss.B.P312

Date: 1895-1946 | Size: 28.5 Linear feet

Abstract

Raymond Pearl spent the majority of his academic career (1918-1940) at Johns Hopkins University, where he was Professor of Biometry and Vital Statistics and Director of the Institute of Biological Research. Founder of the Quarterly Review of Biology and Human Biology, he made significant contributions in the areas of biology, genetics, eugenics, and statistics. The Pearl Papers includes correspondence as well as notebooks, scrapbooks, diplomas, photographs, and 33 volumes of diaries. There is significant correspondence with his wife, Maud (ca. 500 letters), and mother, Ida May (ca. 300 letters), particularly for the years 1895-1934. Of special note is Pearl's correspondence with his friend, colleague, and fellow Baltimoreian, H. L. Mencken (ca. 500 letters). The collection contains important information on the American Association of Physical Anthropologists, The Baltimore Sun, the Birth Control Federation of America, Dartmouth College, the International Institute of Statistics, Johns Hopkins University, and the National Academy of Sciences. This note is currently under review for revision.

Background note

An early and influential advocate for the importation of statistics into biological analysis, Raymond Pearl was a pioneer in American population biology and ecology. The son of Frank Pearl, a grocery clerk and shoe factory foreman, and Ida May McDuffee, Pearl attended Dartmouth College (A.B., 1899) and the University of Michigan (Ph.D., 1902). Like many students of his generation, Pearl traveled abroad after receiving his doctorate to strengthen his education, studying first at the University of Leipzig in 1905, and then under Karl Pearson at University College London (1905-1906). It was Pearson who quickened Pearl's interests in quantitative analysis and fostered his first efforts to apply statistics to population genetics. He married Maud Mary Dewitt, a fellow student at Michigan, and long his collaborator, in 1903.

Pearl's first academic appointments upon returning to the States were as an instructor of zoology at the University of Pennsylvania (1906-1907) and as chair of the Department of Biology at the Maine Agricultural Experiment Station (1907-1918). Befitting his position in Maine, Pearl was engaged primarily in applied research in the genetics of poultry and cattle. Through studies aimed at increasing the productivity of egg-laying in chickens, he turned from an analysis of the inheritance of individual traits to patterns of inheritance in populations. Recognizing, as Mendelian theory predicted, that individuals often did not express the same traits as their parents, Pearl began to study population-level characteristics such as birth rate, death rate, and population size, and to reconceptualize the genetic and environmental dynamics of evolutionary change. His work took him variously into a reanalysis of Malthus' predictions on population density and into direct conflict with the tendencies of much eugenic research to focus on individual traits and individual couples. By 1915, his reputation had grown widely enough in scientific circles to merit election to the American Philosophical Society and, in 1916, to the National Academy of Sciences.

Leaving Maine to become Professor of Biometry at Johns Hopkins in 1918, Pearl entered into the most productive period of his career. At Hopkins, where he served variously as Professor of Biology (1923-1940) and as statistician at the Johns Hopkins Hospital (1919-1935), Pearl turned a statistical eye toward the dynamics of human populations, producing remarkably accurate and durable estimates of changes in world population based upon the best-guess estimates for birth rate and longevity. More controversially, based upon U.S. Census data from 1920, he and Lowell J. Reed theorized that the logistic (sigmoidal) curve was in effect a law of nature describing population growth: after a slow initial period of expansion, populations enter a phase of exponential growth until the they reach the carrying capacity of the environment and level off. Although recognized as a useful heuristic for exploring population dynamics, Pearl's aggressive promotion of the logistic curve and his truculence in its defence alienated many of his colleagues. In other research, Pearl experimented with the factors influencing population dynamics in Drosophila melanogaster, turned to estimates of life expectancy based upon occupation and personal habits, and entered into various statistical aspects of reproductive behavior. An inveterate opponent of most eugenic policies, and critic of eugenic research, he was nevertheless a strong and vocal supporter of birth control and population planning.

Using funds provided by the Rockefeller Foundation, Pearl established the Institute for Biological Research at Johns Hopkins in 1925, heading it throughout its five year existence. He was also active in numerous professional organizations, serving as president of the International Union for Scientific Investigation of Population Problems (1928-1931), the American Association of Physical Anthropologists (1934-1936), and the American Statistical Association (1939),and helping to found and edit the Quarterly Review of Biology in 1926 and Human Biology in 1929. An agile and prolific writer, Pearl wrote 17 books and nearly 700 articles during his career on a extraordinary range of subjects.

This note is currently under review for revision.

Scope and content

A major resource for study of American biometry in the first half of the 20th century, the Pearl Papers contain 14 linear feet of the professional correspondence of Raymond Pearl, longtime professor at Johns Hopkins University, 1.5 linear feet of correspondence with his mother, and one linear foot of letters from Pearl to his wife Maud, concentrated in the period before their marriage, 1897-1899. The Pearl Papers are a rich resource for study of the development of population genetics and population biology during the 1920s and 1930s, as well as biological statistics and biometry, and they contain valuable information on both eugenics and birth control.

The collection is divided into six series:

Series ICorrespondence, 1895-194031 boxes; 15.5 linear feet
Series IIFamily Correspondence, 1895-1946 5 boxes, 2.5 linear foot
Series IIIWorks by Pearl, 1900-19413 boxes; 1.5 linear feet
Series IVScrapbooks, Diaries and Norebooks, 1902-194018 boxes.; 9 linear feet
Series VPhotographs, 1897-194015 items, 0.25 linear feet
Series VICertificates, 1903-19402 folders; 0.25 linear feet

This note is currently under review for revision.

Arrangement

Arrangement is for the Reader Copies and Approved for Reader Use materials.

Digital objects note

This collection contains digital materials that are available in the APS Digital Library. Links to these materials are provided with context in the inventory of this finding aid. A general listing of digital objects may also be found here.

Collection Information

Restrictions

Restrictions on Use:

Correspondence from H.L. Mencken may not be consulted without permission of Mencken's estate.

Provenance

Majority of papers acquired, 1973. Some family correspondence donated by Raymond Pearl's granddaughter, Penelope Jencks, sculptor and daughter of Ruth DeWitt Pearl Jencks, 2012 (Accession M2012-13).

Preferred citation

Cite as: Raymond Pearl Papers, American Philosophical Society.

Other finding aids

The printed version of Bentley Glass' A Guide to the Genetics Collections of the American Philosophical Society contains another biography of Pearl and a further description of the Pearl Papers.

Separated material

Photographs are housed with graphic materials.

Related material

A significant quantity of Pearl correspondence appears in the papers of Charles B. Davenport (239 items) and Herbert Spencer Jennings (278 items).

Bibliography

There is a biographical memoir in APS Year Book 1940.

African American History Note

Pearl's opposition to eugenics earned him both friends and adversaries (most notable among the latter, E. M. East), as reflected throughout the Pearl papers. His correspondence with East, Herbert Spencer Jennings, Karl Pearson, the National Association for the Advancement of Colored People, Ira Jewell Williams, Edwin B. Wilson, F. A. E. Crew, the Rockefeller Institute, and William T. Howard (among others) touches frequently on issues of genetics, eugenics, race, and human evolution. The correspondence with the N.A.A.C.P. comprises three folders of materials for the years 1927-1936, primarily concerning a study of Harlem Hospital.

This note is currently under review for revision.

Physiology, Biochemistry, and Biophysics Note

Scholars of physiology, biochemistry, or biophysics may find the following items of interest:

AuthorFormatDateLanguage
Lillie, Frank Rattray, 1870-1947 Correspondence (13 items)1902, 1920-1939English
Loeb, Jacques, 1859-1924 Correspondence (24 items)1900-1923English

Genetics Note

This collection contains materials which relate to the history of genetics.

AuthorFormatDate
Adelmann, Howard B. Correspondence (23 items)1932-1936
Alpatov, Vladimir Vladimirovich Correspondence (52 items)1926-1940
Alvarez, Walter C. Correspondence (40 items)1925-1942
American Association of Physical Anthropologists Records (8 folders)1937-1940
American Scientific Congress. Eighth Congress Records (6 folders)1939-1940
American Statistical Association Records (4 folders)1921-1925
Ames, Joseph S. Correspondence (22 items)1926-1932
Association against the Prohibiton Amendment Correspondence (26 items)1922-1930
Association for the Defense of the Constitution Correspondence (2 folders)1935-1936
Baily, Joshua L., Jr. Correspondence (36 items)1926-1940
Baltimore Sun Correspondence (46 items)1928-1939
Bateson, William N. Correspondence (21 items)1905-1924
Bell, James F. Correspondence (11 folders)1919-1939
Berkson, Joseph Correspondence (4 folders)1926-1940
Bernard, Leon Correspondence (66 items)1928-1931
Biological Abstracts Correspondence (71 items)1925-1938
Birth Control Federation of America Correspondence (3 folders)1931-1940
Campbell, James A. Correspondence (76 items)1906-1940
Clark, George G. Correspondence (34 items)1913-1929
Cobb, W. Montague Correspondence (37 items)1937-1940
Cole, Leon Jacob Correspondence (230 items)1900-1929
Cox, Eugene A. Correspondence (46 items)1929-1940
Crew, Francis Albert Eley Correspondence (51 items)1921-1938
Dartmouth College Correspondence (2 folders)1933-1940
Darwin, Leonard Correspondence (13 items)1918-1924
DeKruif, Paul H. Correspondence (102 items)1913-1940
DePorte, Joseph V. Correspondence (52 items)1925-1940
Dial Correspondence (35 items)1904-1920
East, Edward Murray Correspondence (270 items)1911-1931
Embree, Edwin R. Correspondence (167 items)1924-1930
Encyclopedia Britannica Correspondence (2 folders)1925-1927
Fisher, Arne Correspondence (76 items)1925-1939
Friede-Andreeff, Margaret Correspondence (49 items)1909-1928
Gaskell, Augusta Correspondence (44 items)1928-1939
Gause, Georgii Frantsevitch Correspondence (37 items)1930-1941
Gini, Corrado Correspondence (124 items)1927-1931
Gowen, John W. Correspondence (67 items)1930-1940
Greenwood, Major Correspondence (506 items)1921-1944
Harrison, Ross Granville Correspondence (133 items)1916-1941
Henderson, Lawrence J. Correspondence (279 items)1914-1940
Hoover, Herbert Correspondence (21 items)1917-1940
Howard, William T. Correspondence (103 items)1919-1939
Huhn, Rudolf von Correspondence (58 items)1919-1929
Hurst, Fannie Correspondence (46 items)1923-1934
Indiana University Correspondence (61 items)1937-1940
International Institute of Statistics Records (249 items)1937-1940
International Union for the Scientific Investigation of Population Problems Correspondence (398 items)1925-1939
Jackson, Stuart W. Correspondence (56 items)1934-1939
Jennings, Herbert Spencer Correspondence (249 items)1899-1929
Johns Hopkins University Correspondence (55 items)1919-1929
Jones, Bassett Correspondence (105 items)1932-1940
Kelly, Fred C. Correspondence (124 items)1919-1940
LeBlanc, Thomas J. Correspondence (60 items)1925-1933
Lotka, Alfred J. Correspondence (318 items)1921-1940
Mallet, Sir Bernard Correspondence (333 items)1927-1931
Mencken, Henry Louis Correspondence (509 items)1923-1948
Morgan, Thomas Hunt Correspondence (64 items)1911-1931
National Academy of Sciences Correspondence (135 items)1919-1924
National Association for the Advancement of Colored People Correspondence (85 items)1927-1933
National Research Council Correspondence (57 items)1923-1925
Pearl, Ida May McDuffee Correspondence (138 items)1895-1934
Pearl, Maud Mary DeWitt Correspondence (527 items)1901-1929
Pearl, Penelope Correspondence (40 items)1930-1942
Pearl, Raymond -- Aims and problems of the Department of Biology and their development Manuscripts (1 folder)1935
Pearl, Raymond -- Diaries Diaries (44 volumes)1902-1940
Pearl, Raymond -- Laboratory notebooks Notebooks (2 volumes)1930-1931
Pearl, Raymond Scrapbooks (10 volumes)1919-1940
Pearson, Karl Correspondence (141 items)1901-1937
Population Association of America Correspondence (61 items)1934-1936
Quarterly Review of Biology Correspondence (47 items)1927-1940
Rockefeller Foundation Correspondence (55 items)1930-1936
Rockefeller Institute of Medical Research Correspondence (74 items)1931-1934
Russell, Edward Stuart Correspondence (64 items)1934-1944
Saint John's College Correspondence (229 items)1928-1936
Sanger, Margaret Correspondence (390 items)1921-1935
Social Science Research Council Correspondence (132 items)1928-1930
Social Science Research Council. Advisory Committee on Population Correspondence (36 items)1928-1930
Stefansson, Vilhjalmur Correspondence (299 items)1919-1939
Surface, Frank M. Correspondence (51 items)1910-1923
Sweeney, James Shirley Correspondence (67 items)1923-1932
Thomas, Charles C. Correspondence (156 items)1927-1932
Walcott, Frederic C. Correspondence (63 items)1919-1938
Welch, William H. Correspondence (141 items)1916-1932
Wheeler, William Morton Correspondence (243 items)1910-1937
Willcox, Walter F. Correspondence (158 items)1922-1940
Williams, Ira Jewell, Jr. Correspondence (143 items)1925-1941
Wilson, Edwin Bidwell Correspondence (242 items)1922-1936
Wing, Leonard W. Correspondence (45 items)1939
Winsor, Charles P. Correspondence (66 items)1926-1936
Wislocki, George B. Correspondence (54 items)1931-1940
Woods, Charles D. Correspondence (110 items)1906-1925
Yerkes, Robert M. Correspondence (86 items)1903-1929
Yule, George Udny Correspondence (155 items)1903-1944

Indexing Terms


Corporate Name(s)

  • American Association of Physical Anthropologists
  • Baltimore Sun
  • Birth Control Federation of America
  • Dartmouth College
  • International Statistical Institute.
  • National Academy of Sciences (U.S.)
  • The Quarterly Review of Biology

Genre(s)

  • Diaries.

Personal Name(s)

  • Bell, James F.
  • Berkson, Joseph, 1899-1982
  • Bernard, Léon, b. 1877
  • Campbell, James A.
  • Cox, Eugene A.
  • East, Edward M. (Edward Murray), 1879-1938
  • Embree, Edwin R. (Edwin Rogers), 1883-1950
  • Fisher, Arne
  • Gini, Corrado, 1884-
  • Greenwood, Major, 1880-
  • Harrison, Ross G. (Ross Granville), 1870-1959
  • Jones, Bassett, 1877-1960
  • Mallet, Bernard, Sir
  • Mencken, H. L. (Henry Louis), 1880-1956
  • Morgan, Thomas Hunt, 1866-1945
  • Pearl, Ida May McDuffee
  • Pearl, Maud Mary DeWitt
  • Pearl, Raymond, 1879-1940
  • Pearson, Karl, 1857-1936
  • Ritter, William Emerson, 1856-1944
  • Russell, E. S. (Edward Stuart), 1887-1954
  • Sanger, Margaret, 1879-1966
  • Stefansson, Vilhjalmur, 1879-1962
  • Sweeney, James Shirley, 1896-
  • Thomas, Charles C., 1925-
  • Walcott, Frederic Collin, 1869-1949
  • Wheeler, William Morton, 1865-1937
  • Willcox, Walter Francis, 1861-1964
  • Wilson, Edwin Bidwell, 1879-1964
  • Yerkes, Robert Mearns, 1876-1956
  • Yule, G. Udny (George Udny), 1871-1951

Subject(s)

  • Biology
  • Biology -- Periodicals
  • Biology publishing
  • Biology, genetics, eugenics
  • Biometry
  • Birth control.
  • Culture, community, organizations
  • Eugenics
  • Evolution (Biology)
  • Genetics
  • Human evolution
  • Population biology
  • Race, race relations, racism
  • Science publishing.
  • Social conditions, social advocacy, social reform
  • Statistics
  • World War, 1914-1918

Collection overview

1895-1940 Box 1-31

Reflecting Pearl's interests in the biometric study of human populations, the collection includes abundant correspondence relating to statistics, human evolution, demography, longevity, and birth control, but the topics covered in correspondence are very diverse. Among the most prolific correspondents were his antagonist, E. M. East (1879-1938), Leon J. Cole (b. 1877), Herbert Spencer Jennings (1868-1947), Alfred J. Lotka (1880-1949), Major Greenwood (b. 1880), T.H. Morgan, Margaret Sanger (1879-1966), Vilhjalmur Stefansson (1879-1962), William Henry Welch (1850-1934), E. B. Wilson, William Morton Wheeler (1865-1937), Corado Gini (b. 1881), Karl Pearson (1857-1936), Bernard Mallet (1859-1932), Robert Mearns Yerkes (1876-1956), and George Udny Yule (b.1871). The series of letters between Pearl and his friend H. L. Mencken (1880-1956), including several written at the time of the Scopes "monkey trial," are of particular interest.

Pearl's opposition to eugenics earned him both friends and adversaries (most notable among the latter, E.M. East), as reflected throughout the collection. His correspondence with East and Cole, Jennings, Pearson, the National Association for the Advancement of Colored People, I.J. Williams, E.B. Wilson, F.A.E. Crew, the Rockefeller Institute, and W.T. Howard (among others) touches frequently on issues of genetics, eugenics, race, and human evolution.

1895-1946 Box 31-35

Correspondence to his mother, Ida May, his wife, Maud, and a small number of letters to family and friends. Plus, letters to his daughter, Penelope Pearl. Includes postcards written to Raymond Pearl from scientists all over Europe.

1900-1941 Box 36-38

Primarily research notes, with some originals of printed works.

1902-1940 Box 39-56

Diaries, manuscripts, notebooks, scrapbooks, and scientific "commonplace books". The diaries consist of very brief daily entries with relatively little detail.

1897-1940 1 folder Box 57
Originals can be found in the oversize flat-file drawers.

Miscellaneous formal and informal photographs depicting Pearl and his associates throughout his career. In addition to a few portraits of Pearl there is an image of researchers at the Maine Biological Laboratory, 1897, and one taken at the dinner at the 10th Annual Meeting of the American Association of Physical Anthropologists held in honor of the 70th birthday of Ales Hrdlicka.

1903-1940, n.d. 2 folders Box 57
Originals can be found in the oversize flat-file drawers.


Detailed Inventory

 Series I. Correspondence
1895-1940 Box 1-31

Reflecting Pearl's interests in the biometric study of human populations, the collection includes abundant correspondence relating to statistics, human evolution, demography, longevity, and birth control, but the topics covered in correspondence are very diverse. Among the most prolific correspondents were his antagonist, E. M. East (1879-1938), Leon J. Cole (b. 1877), Herbert Spencer Jennings (1868-1947), Alfred J. Lotka (1880-1949), Major Greenwood (b. 1880), T.H. Morgan, Margaret Sanger (1879-1966), Vilhjalmur Stefansson (1879-1962), William Henry Welch (1850-1934), E. B. Wilson, William Morton Wheeler (1865-1937), Corado Gini (b. 1881), Karl Pearson (1857-1936), Bernard Mallet (1859-1932), Robert Mearns Yerkes (1876-1956), and George Udny Yule (b.1871). The series of letters between Pearl and his friend H. L. Mencken (1880-1956), including several written at the time of the Scopes "monkey trial," are of particular interest.

Pearl's opposition to eugenics earned him both friends and adversaries (most notable among the latter, E.M. East), as reflected throughout the collection. His correspondence with East and Cole, Jennings, Pearson, the National Association for the Advancement of Colored People, I.J. Williams, E.B. Wilson, F.A.E. Crew, the Rockefeller Institute, and W.T. Howard (among others) touches frequently on issues of genetics, eugenics, race, and human evolution.

 Abbott, E.A.
1909 Box 1
 Abel, J.J.
1926 Box 1
 Acta Biotheoretica
1935-1938 Box 1
 Adams, Charles C.
1909 Box 1
 Adams, Samuel Hopkins
1927, 1940 Box 1
 Adams, Thomas
1926 Box 1
 Adelmann, Howard B.
1932-1936 Box 1
 Agar, W.E.
1927, 1937-1938 Box 1
 Allard & Sons, Printers
1902 Box 1
 Allee, W.C.
1940 Box 1
 Allen, Bennet M.
1937 Box 1
 Allen, Glover M.
1911 Box 1
 Alpatov, W.W.
1926-1940 2 folders Box 1

Vladimir Vladimirovich

 Alvarez, Walter C.
1925-1942 2 folders Box 1
 American Adding Machine Company
1903 Box 1
 American Association for the Advancement of Science
1925 Box 1

Committee of One Hundred

 American Association of Physical Anthropologists
1937-1940 8 folders Box 1
 American Birth Control League, Inc.
1926 Box 1
 American Book Company
1938 Box 1
 American Breeders' Association
1910 Box 1
 American Committee for Democracy and Intellectual Freedom
1939-1940 Box 1
 American Express Company
1903 Box 1
 American Journal of Botany
1926-1937 Box 1
 American Journal of Science
  Box 1
 American Medical Association
1925-1936 Box 1
 American Physicians' Art Association
1938 Box 1
 American Society of Ichthyologists and Herpetologists
1937 Box 1
 American Statistical Association
1921-1925 4 folders Box 1
 Ames, Joseph S.
1926-1932 Box 1
 Andrews, E.A.
1929-1937 Box 1
 Andrews, Eliza Frances
1921 Box 1
 Andrews, James M.
1936-1940 Box 1
 Andrews, Justin
1935 Box 1
 Angon, J.B.
1903-1904 Box 1
 Ann Arbor Printing Company
1902 Box 1
 Annals of Eugenics
1938 Box 1
 Annals of the American Academy of Political and Social Sciences
1937 Box 2
 Annual Review of Biochemistry
1938 Box 2
 Anthonisen, Margaret R.
1938 Box 2
 Anthropologischer Anzeiger
1926-1936 Box 2
 Appel, Fred and Elizabeth
1940 Box 2
 Ark, P.A.
1939 Box 2
 Armsty, H.P.
1917 Box 2
 Association Against the Prohibition Amendment
1922-1930 Box 2
 Association for the Defense of the Constitution
1935-1936 2 folders Box 2
 Athenaeum of London
1927-1931 Box 2
 Atkinson, Reginald
1920 Box 2
 Atterbury, Howard
1935, 1940 Box 2
 Atwood, William T.
1906 Box 2
 Austrian, Charles R.
1939 Box 2
 Aznoe's National Physicians' Exchange
1928-1929 Box 2
 Bachelder, Frank S.
1900 Box 2
 Bachmetjen, P.
1909 Box 2
 Bacon, Clara L.
1940 Box 2
 Baerg, W.J.
1928-1936 Box 2
 Baetjer, Edward G.
1935 Box 2
 Bailey, Frank W.
1929 Box 2
 Bailey, Irving W.
1924-1937 Box 2
 Baily, Joshua L., Jr.
1926-1940 Box 2
 Baily, Ruth Ingersoll
1940 Box 2
 Baker, Lawrence H.
1926-1928 Box 2
 Baker, Mary W.
1934 Box 2
 Balamuth, William
1938-1940 Box 2
 Balfour, Andrew
1928 Box 2
 Balinsky, B.I.
1937 Box 2
 Baltimore Sun
1928-1939 2 folders Box 2
 Barbour, Thomas
1929-1939 Box 2
 Bardeen, Charles R.
1926 Box 2
 Barker, Lewellys F.
1940 Box 2
 Barnard, Chester I.
1939 Box 2
 Barr, Mark W.
1938-1939 Box 2
 Barstow, ___
1901 Box 2
 Bateson, William
1905-1927 Box 2
 Bauer, Julius
1923-1924 Box 2
 Bauernschmidt, Marie O. von H.
1940 Box 2
 Baür, Erwin
1914-1928 Box 2
 Bausch and Lomb Optical Company
1902 Box 2
 Bayard, E.S.
1921 Box 2
 Beal, Kenneth
1920-1929 Box 2
 Beardsley, E.J.G.
1925, 1929 Box 2
 Becking, L.B.
1926 Box 2
 Beckwith, Cora J.
1920 Box 2
 Beecher, Peck and Lewis
1902 Box 2
 Bell, Alexander Graham
1903-1922 Box 2
 Bell, Ford
1934 Box 2
 Bell, James F.
1919-1939 11 folders Box 2-3
 Bell, W. Blan
1910 Box 3
 Bellock, ___
Undated Box 3
 Bénézet, Louis P.
1940 Box 3
 Berkson, Joseph
1926-1940 4 folders Box 3
 Bernard, Leon
1928-1931 3 folders Box 3
 Bertalanffy, Ludwig von
1937-1938 Box 3
 Bingley, George A.
1936 Box 3
 Biodynamica
1939 Box 3
 Biological Abstracts
1925-1938 2 folders Box 3
 Biological Bulletin
1925-1930 Box 3
 Birth Control Federation of America
1930-1940 3 folders Box 3
 Bissonnette, T. Hume
1935-1936 Box 3
 Bittner, John J.
1936 Box 3
 Blacker, C.P.
1937 Box 3
 Blakeslee, A.F.
1938-1940 Box 3
 Bliss, Sidney
1926 Box 3
 Bloodgood, Joseph Colt
1925-1930 Box 4
 Boas, Franz
1940 Box 4
 Bonnell, Robert O.
1938 Box 4
 Book Reviews
1939-1940 Box 4
 Boquet, D.
1928 Box 4
 Bordley, John Earle
1934 Box 4
 Borges Vieire, F.
1920 Box 4
 Boring, Alice M.
1920-1929 Box 4
 Boring, Edwin G.
1922 Box 4
 Boston Society of Natural History
1908 Box 4
 Boudreau, Frank G.
1940 Box 4
 Bowerman, Walter G.
1939-1941 Box 4
 Bowman, Isaiah
1925-1941 Box 4
 Boys, C.V.
1937 Box 4
 Breder, C.M., Jr.
1932-1935 Box 4
 Brekhus, Peter J.
1939 Box 4
 Bridges, Calvin M.
1925 Box 4
 Bridgman, Frederick J.
1923 Box 4
 Brink, R.A.
1929 Box 4
 Brinton Associates
1940 Box 4
 British Association for the Advancement of Science
1937 Box 4
 Britton, S.W.
1940 Box 4
 Bromley, Dorothy Dunbar
1937-1938 Box 4
 Brooks, S.C.
1927 Box 4
 Brothers of the Book
1913 Box 4
 Brown, Edward
1918 Box 4
 Brown, Lawrason
1919-1920 Box 4
 Browne, Francis F.
1910 Box 4
 Brues, C.T.
1929 Box 4
 Brun, B. Lucien
1927, 1938 Box 4
 Buchholz, H.E.
1929-1934 Box 4
 Buck, Walter H.
1931-1940 Box 4
 Buck, Mrs. Walter H.
1933 Box 4
 Bulletin d'Histologie Appliquée
1926 Box 4
 Bumpus, ___
1901 Box 4
 Bunn, Edward B.
1940 Box 4
 Burden, Henry
1920 Box 4
 Bureau Der Medinischen Refgratenblätter
1926-1941 Box 4
 Burnett, Paul M.
1936 Box 4
 Burr, H.S.
1933-1935 Box 4
 Burrows, J.C.
1902-1903 Box 4
 Burrows, Montrose T.
1940 Box 4
 Burrows, William
1937-1939 Box 4
 Butschli, Otto
1905 Box 4
 Buxton, P.A.
1928-1937 Box 4
 Cairns, Huntington
1935-1939 Box 4
 Campbell, James A.
1906-1940 2 folders Box 4
 Cannon, Walter B.
1921 Box 4
 Carey, Henry R.
1929 Box 4
 Carey, James, 3rd
1941 Box 4
 Carlton, Newcomb
1934-1935 Box 4
 Carnegie Institution of Washington
1903-1906 Box 4
 Carr, A.F., Jr.
1936 Box 4
 Carrel, Alexis
1920-1935 Box 4
 Carty, John J.
1926 Box 4
 Caspari, Ernst
1940-1941 Box 4
 Castle, William E.
1913-1914 Box 4
 Cathcart, Maxwell
Undated Box 4
 Catlin, G.E.G.
1926 Box 4
 Cattell, J. McKeen
1913-1921 Box 4
 Cattell, R.B.
1940 Box 4
 Caxton Printers, Limited
1938 Box 4
 Chaddock, Robert E.
1927-1928 Box 4
 Chapman, Ross McC.
1932 Box 4
 Chapman, V.J.
1935 Box 4
 Charles, Enid
1939 Box 4
 Charo, Walter J.
1939 Box 4
 Chemisches Zentralblatt
1938 Box 4
 Cheslock, Louis
1937-1940 Box 4
 Chesney, Alan M.
1940 Box 4
 Chester, Kenneth Starr
1932-1939 Box 5
 Chicago Record-Herald
1901-1903 Box 5
 Chicago Writing Machine Company
1902 Box 5
 Chickering, A.M.
1929 Box 5
 Child, ___
1903 Box 5
 China Journal
1926-1927 Box 5
 Chinard, Gilbert
1936-1938 Box 5
 Chittenden, F.H.
1901 Box 5
 Chronica Botanica
1935-1939 Box 5
 Chugerman, Samuel
1940 Box 5
 Claoné, C.
1936 Box 5
 Clark, B. Preston
1938 Box 5
 Clark, George G.
1913-193434 itemsBox 5
 Clark, Hubert Lyman
1940 Box 5
 Clark, Janet H.
1940 Box 5
 Clarke, Francis
1923-1924 Box 5
 Clarke, George L.
1938-1939 Box 5
 Cleland, Ralph E.
1946 Box 5
 Clendening, Logan
1928 Box 5
 Cleveland, Richard F.
1931 Box 5
 Clinical Club
1933-1940 Box 5
 Close, C.F.
1936 Box 5
 Cobb, W. Montague
1937-194037 itemsBox 5
 Colby, John C.
1920 Box 5
 Cole, H.N.
1907 Box 5
 Cole, Leon Jacob
1900-1929 9 folders Box 5
 Collins, James H.
1920, 1927-1929 Box 5
 Colton, Harold S.
1927-1928 Box 5
 Comitate Italiano
1937 Box 5
 Commission on Medical Education
1926-1928 Box 5
 Commonwealth Fund
1926 Box 5
 Compton, Karl T.
1929 Box 5
 Concilium Bibliographicum
1902 Box 5
 Conklin, Edwin G.
1900-1940 Box 5
 Connolly, Helen S.
1929 Box 5
 Conseil International pour L'Exploration de la Mer
1939 Box 5
 Cook, Walter W.
1930 Box 5
 Cook, William W.
1927 Box 5
 Coolidge, Calvin
1925 Box 5
 Cooper, Charles G.
1905-1906 Box 5
 Cooper Union Forum
1926-1927 Box 5
 Cornelius, James T.
1920-1921 Box 6
 Cornell University
1927-1928 Box 6
 Correns, C.
1907 Box 6
 Cowdry, E.V.
1926-1929 Box 6
 Cox, Eugene A.
1929-1940 2 folders Box 6
 Craft, W.A.
1937-1938 Box 6
 Crampton, C. Ward
1925 Box 6
 Crank Letters
1925-1927 Box 6
 Crawford, Stanton C.
1933 Box 6
 Creaser, C.W.
1939 Box 6
 Crew, F.A.E.
1921-1938 2 folders Box 6
 Crittenden, A.R.
1903 Box 6
 Cross, Wilbur
1931-1934 Box 6
 Crowe, Robert S.
1940 Box 6
 Crum, X.X.
1921 Box 6
 Cumings, E.R.
1902 Box 6
 Cummins, Charles A.
1934 Box 6
 Cushing, Harvey
1930 Box 6
 Cutter, Ruth M.
1922-1924 Box 6
 Dabney, William M.
1928 Box 6
 Daland, Ernest M.
1929 Box 6
 Dalrymple-Champneys, Sir Weldon
1943 Box 6
 Damon, S.R.
1927 Box 6
 D'Amour, Fred E.
1934-1936 Box 6
 Dana, Charles L.
1921 Box 6
 Dana, John Cotton
1928 Box 6
 Danchakoff, Vera
1929 Box 6
 Daniel, J. Frank
1936-1937 Box 6
 Darbishire, Arthur Duckenfield
1910 Box 6
 Darlington, P.J., Jr.
1937 Box 6
 Dartmouth College
1933-1944 3 folders Box 6
 Darwin, Leonard
1918-192413 itemsBox 6
 Daubenmire, R.F.
1937-1938 Box 6
 Davenport, Charles B.
1903-1929 Box 6
 Davies, G.R.
1927 Box 6
 Davis, D.J.
1937-1938 Box 6
 Davis, David E.
1941 Box 6
 Davis, Donald W.
1927 Box 6
 Davis, H. Jackson
1930 Box 6
 Davis, Janover W.
1940 Box 6
 Davis, Katherine Bement
1927 Box 6
 Davis, Watson
1929 Box 6
 Day, Arthur L.
1916-1936 Box 6
 Day, Clarence A.
1927 Box 6
 Dead Letter Office
1901 Box 6
 Deale, J.E.
1925 Box 6
 Dean, A.S.
1930 Box 6
 Deason, Hilary J.
1928 Box 6
 Deetjen, Chr.
1927, 1931 Box 6
 Deevey, Edward S., Jr.
1941 Box 6
 DeKruif, Paul H.
1913-1940 2 folders Box 6
 Deom, Georges
1926 Box 6
 DePorte, J.V.
1925-194052 itemsBox 7
 Derby, ___
1901 Box 7
 Derick, R.A.
1926 Box 7
 DeSayda, S.D.
1928 Box 7
 Detwiler, Margaret
1925 Box 7
 Detwiler, S.R.
1929-1939 Box 7
 Deuber, Carl G.
1925-1928 Box 7
 Deute, Arthur H.
1939-1940 Box 7
 Deutsche Aerzte-Zeitung
1928-1930 Box 7
 Dhar, N.R.
1926-1931 Box 7
 Dial (editor)
1904-192035 itemsBox 7
 Dickerson, Albert I.
1940-1941 Box 7
 Dickinson, Robert L.
1925-1928 Box 7
 Dittus, C.W.
1940 Box 7
 Doggett, Marguerite V.
1939 Box 7
 Dohme, Alfred R.L.
1940 Box 7
 Dohrn, Anton
1905 Box 7
 Donaldson, Emma
1940, undated Box 7
 Donaldson, Henry H.
1904-1923 Box 7
 Dorfman, Joseph
1929-1930 Box 7
 Dorr, A.W.
1904 Box 7
 Drake University
1901 Box 7
 Driesch, Hans
1923 Box 7
 Dublin, Louis I.
1926-1930 Box 7
 Duerden, J.E.
1905-1909 Box 7
 Dufrenoy, Jean
1937-1938 Box 7
 Dunbar, Frances
1903-1905 Box 7
 Duncker, Georg
1901 Box 7
 Dunkerly, J.S.
1927 Box 7
 Dunn, Gano
1924 Box 7
 Dunn, Halbert L.
1923 Box 7
 Dunn, Leslie Clarence
1930 Box 7
 DuPont, Pierre S.
1931 Box 7
 Earle, Swepson
1932 Box 7
 Earp, J. Rosslyn
1926-1928 Box 7
 East, E. M.
1911-1931 9 folders Box 7

Edward Murray

 Eckels, Richard P.
1938 Box 7
 Edge, P. Granville
1933-1939 Box 7
 Edgeworth, F. B.
1918 Box 7
 Edinger, Tilly
1941 Box 7
 Edsall, David L.
1929 Box 7
 Ehrenfest, Hugo
1926-1936 Box 7
 Eiger, Yeshivah Rabbi Akibah
1925 Box 7
 Eighth American Scientific Congress
1939-1940 6 folders Box 8
 Elliott, L.B.
1901-1903 Box 8
 Ellis, Havelock
1927 Box 8
 Ellis, T.A.
1920-1921 Box 8
 Embree, Edwin R.
1924-1930 5 folders Box 8
 Emerson, C.F.
1902, 1922 Box 8
 Emerson, Haven
1927-1930 Box 8
 Emerson, Natt W.
1930 Box 8
 Emerson, R.A.
1922-1937 Box 8
 Emslie, Raymond G.
1930 Box 8
 Encyclopaedia Britannica
1925-1927 2 folders Box 8
 Encyclopaedia of the Social Sciences
1928-1930 Box 8
 Encyclopedie Francaise
1937 Box 8
 Engelmann, Wilhelm
1926 Box 8
 Enoch Pratt Library
1940 Box 8
 Enriques, Federigo
1911 Box 8
 Enriques, Paolo
1909 Box 8
 Epstein, H.
1941 Box 8
 Eugenics Congress
1912 Box 8

Newspaper clippings

 Evans, Ifor Leslie
1925 Box 8
 Evans, York
  Box 8
 Ewer, Mrs. R.F.
1939 Box 8
 Fairchild, David
1908, 1940 Box 8
 Fairchild, H.P.
1925 Box 8
 Fairchild, Milton
1933 Box 8
 Farrar and Rinehart, Inc.
1938 Box 8
 Fawcett, C.B.
1931 Box 8
 Fayle, Jane L.
1917-1940 Box 8
 Fellman, A. M.
  Box 8
 Fetcher, Edwin S., Jr.
1939 Box 8
 Field, Herbert Haviland
1902 Box 9
 Fields, Harold
1929 Box 9
 Fink, Harold K.
1940 Box 9
 Finlay, G.F.
1924 Box 9
 Fischer, Eugen
1932-1935 Box 9
 Fischer, Gustav
1902, 1938 Box 9
 Fishbein, Morris
1926 Box 9
 Fisher, Arne
1925-1939 2 folders Box 9
 Fisher, Irving
1908-1939 Box 9
 Fisher, R.A.
1925-1930 Box 9
 Fitz, Reginald
1928 Box 9
 Fletcher, Marjorie Howard
Undated Box 9
 Fletcher, S.W.
1935 Box 9
 Flexner, Louis
1940 Box 9
 Flexner, Simon
1926 Box 9
 Florida Academy of Sciences
1938 Box 9
 Foot, Katharine
1916 Box 9
 Footeur, Bill
1940 Box 9
 Forbes, ___
1909 Box 9
 Forok, ___
1909 Box 9
 Forum
1927-1929 Box 9
 Fossler, M.L.
1928 Box 9
 Franckh'sche Verlagshandlung
1937 Box 9
 Frank, Glenn
1928 Box 9
 Frank, Grace
1940 Box 9
 Frank, Tenney
1931 Box 9
 Freeman, Allen Weir
1926, 1934 Box 9
 Freeman, Walter
1934 Box 9
 French, W.F.
1930 Box 9
 Frets, G.P.
1928 Box 9
 Friede-Andreeff, M.
1909-1928 2 folders Box 9
 Friedenwald, Harry
1938 Box 9
 Friedenwald, Jonas
1937-1941 Box 9
 Friedli, W.
1928 Box 9
 Friedmans'
1925 Box 9
 Frost, E.B.
1921 Box 9
 Frost, W.H.
1929-1938 Box 9
 Frumkin, G.
1937 Box 9
 Furwirth, C.
1909-1910 Box 9
 Gaither, General Charles D.
1935 Box 9
 Galt, William
1939-1940 Box 9
 Galton Society
1918, 1931-1935 Box 9
 Gannett, Frank
1939 Box 9
 Gannon, Joseph W.
1908 Box 9
 Gardner, M.W.
1939 Box 9
 Garrett, Robert
1939 Box 9
 Garrison, Fielding H.
1929-1934 Box 9
 Garwood, R.S.
1902 Box 9
 Gary, E. Stanley
1939 Box 9
 Gary, Guy L.
1901 Box 7
 Garza Brito, Angel De La
1940-1941 Box 9
 Gaskell, Augusta
1928-1939 Box 9
 Gaskell, Edwin
1929 Box 9
 Gates, R. Ruggles
1908-1940 Box 9
 Gause, G.F.
1930-1941 Box 9
 Gay, Frederick P.
1923-1930 Box 9
 Gelder, van
1910 Box 9
 George, W.C.
1940-1941 Box 9
 Gill, Robert S.
1940 Box 9
 Gilles, Helen T.
1929-1935 Box 9
 Gillet, Charles B.
1933 Box 9
 Gilman, Elizabeth
1934, 1939 Box 9
 Gilman, John S.
Undated Box 10
 Gini, Corrado
1927-1931 7 folders Box 10
 Ginn and Company
1901, 1934 Box 10
 Glenn, John M.
1930 Box 10
 Godlowski, Emil
1904 Box 10
 Gontcharoff, B. de
1910 Box 10
 Gonzales, B.M.
1923-1928 Box 10
 Goodman, Jules Eckert
1937 Box 10
 Goodman, Philip
1925-1939 Box 10
 Goodnow, Frank J.
1923-1929 Box 10
 Goodrich, Nathaniel L.
1944 Box 10
 Goodwin, L.E.
1925-1926 Box 10
 Gorbman, Aubrey
1941 Box 10
 Gosset, W.L.
1930 Box 10
 Goto, Seitano
1926 Box 10
 Gotto, Mrs. S.
1909-1911 Box 10
 Gowen, John W.
1930-1940 2 folders Box 10
 Graham, A. Michael
1937 Box 10
 Graham, W.R.
1909, 1914 Box 10
 Grant, John B.
1921-1929 Box 10
 Grape, A.H., and Company
1927, 1930 Box 10
 Graves, William Washington
1940 Box 10
 Greenwood, Major
1921-1944 18 folders Box 10-11
 Greenwood, Rosa
1927 Box 11
 Gregg, Clifford C.
1940 Box 10
 Greif, Amy F.
1933 Box 11
 Griffith, Melvin E.
1937 Box 11
 Gruenberg, Benjamin C.
1926 Box 11
 Gruenwald, Peter
1940 Box 11
 Guan, Arthur
1940 Box 11
 Gudger, E.W.
1938-1940 Box 11
 Gulick, Addison
1937-1939 Box 11
 Gumbel, E.J.
1938-1939 Box 11
 Hadley, Philip B.
1910 Box 11
 Hake, John L.
1937-1939 Box 11
 Hahn, Martin
1925 Box 11
 Hale, George E.
1906, 1920-1928 Box 11
 Hall, Alton L.
1926 Box 11
 Hall, Arnold B.
1926 Box 11
 Hall, Edwin H.
1923 Box 11
 Hall, G. Stanley
1901-1903, 1921 Box 11
 Hall, Milton W.
1922 Box 11
 Hall, R.P.
1938-1939 Box 11
 Hamburger, Louis P.
1934 Box 11
 Hamman, Louis V.
1928, 1936-1937 Box 11
 Hammett, Frederick S.
1927-1930, 1937-1940 Box 11
 Hammend, E. Cuyler
1937 Box 11
 Hanrahan, Edward M., Jr.
1928 Box 11
 Hanson, J.M.
1901 Box 11
 Harding, T. Swann
1928-1929 Box 11
 Hargrove, W.H.
1929 Box 11
 Harmon, G.E.
1927 Box 11
 Harper Brothers
1927 Box 11
 Harper, Fowler V.
1939 Box 11
 Harris, F.K.
1906 Box 11
 Harris, J. Arthur
1907, 1926 Box 11
 Harrison, Ross Granville
1916-1941 5 folders Box 11
 Hartman, Howard R.
1928 Box 11
 Harvard University
1936 Box 11
 Harvey, H.E.
  Box 11
 Haskell, A.C.
1925 Box 12
 Hastings, Harold R.
1940 Box 12
 Hatai, Shinkishi
1904-1931 Box 12
 Hatcher, J.B.
1902 Box 12
 Hawkes, Ralph W.
1940 Box 12
 Hawley, Paul R.
1923-1933 Box 12
 Hayner, Leonidos
1929 Box 12
 Hayward, Sidney C.
1940-1943 Box 12
 Headland, Mariane
1922 Box 12
 Heath, D.C., & Company
1902 Box 12
 Hegner, R.W.
1925, 1934 Box 12
 Hektoen, Ludwig
1925-1930 Box 12
 Hemburger, Theodore
1929-1936 Box 12
 Henderson, Edith T.
1919, 1931 Box 12
 Henderson, Lawrence J.
1914-1940 8 folders Box 12
 Henry, Daniel M.
1925-1931 Box 12
 Henry, Frank F.
1920-1922 Box 12
 Hergesheimer, Joseph
1937 Box 12
 Hermannsson, H.
1927-1929 Box 12
 Hernando, Eugenio
1923-1938 Box 12
 Heron, David
1925-1933 Box 12
 Herrera, A.L.
1928 Box 12
 Herskovits, Melville J.
1927-1929 Box 12
 Hertwig, R.
1905 Box 12
 Herwerden, M.A. van
1927 Box 12
 Hesketh, Florence E.
1926 Box 12
 Hill, A. Bradford
1937 Box 12
 Hill, Arthur
1937 Box 12
 Hiller, Paul W.
1930 Box 12
 Hinrichs, Ernest H.
1940 Box 12
 History of Science Society
1935 Box 12
 Hoban, Owen A.
1936-1939 Box 12
 Hodge, C.F.
1906 Box 12
 Hodson, Cora B.S.
1927-1934 Box 12
 Hoffman, Robert
1926 Box 12
 Hofmann, Fred W.
1927 Box 12
 Hogan, John F.
1936 Box 12
 Hogstad, Anton, Jr.
1926 Box 12
 Holland, Joseph W.
1929 Box 12
 Holt, Henry and Company
1903 Box 12
 Holman, W.L.
1926 Box 12
 Holt, Hamilton
1919-1920 Box 12
 Holzapfel, Ruth A.
1935-1936 Box 12
 Holzinger, C.
1929 Box 12
 Hooper, F.H.
1925 Box 12
 Hoopes, Lillie G.
1929 Box 12
 Hooten, Earnest A.
1940 Box 12
 Hoover, Herbert
1917-1940 Box 12
 Hoover War Library
1933 Box 12
 Hopkins, Ernest Martin
1927-1940 2 folders Box 13
 Horner, Anton
1926-1927 Box 13
 Horton, Harold E.
1928 Box 13
 Hotel Hershey
1940 Box 13
 Hotelling, Harold
1930 Box 13
 Howard, L.O.
1934 Box 13
 Howard, William T.
1919-1939 4 folders Box 13
 Howell, W.H.
1926-1935 Box 13
 Hrdlicka, Ales
1909-1938 Box 13
 Huber, Frederick R.
1937 Box 13
 Huhn, Rudolf von
1919-1929 2 folders Box 13
 Hunt, Albert R.
1934 Box 13
 Huntington, Edward V.
1939-1940 Box 13
 Huntington, Ellsworth
1927 Box 13
 Hurd, Sarah Cooper
1921-1922, 1931 Box 13
 Hurd, William D.
1922, undated Box 13
 Hurst, Fannie
1923-1934 Box 13
 Hutchins, A.F.
1934 Box 13
 Hutchins, Harry
1927-1931 Box 13
 Hutt, F.B.
1942 Box 13

Contributions of Raymond Pearl to Poultry Science

 Huxley, Julian S.
1915 Box 13
 Hyatt, Edwin A.
1920 Box 13
 Hyde Park Hotel, London
1927 Box 13
 Hyde, R.R.
1938 Box 13
 Iglehart, F. N., and Company
1920 Box 13
 Ilsley, Morrill L.
1940 Box 13
 Imai, Takeo
1932-1936 Box 13
 Indiana Banking Conference
1938 Box 13
 Indiana State Librarian
1901 Box 13
 Indiana University
1937-1940 2 folders Box 13
 Inge, William Ralph
1926-1937, undated Box 13
 Ingram, Edward G.
1926 Box 13
 Institut International de Statistique
1931, 1941 Box 13
 Institute for Biological Research
1926-1929 Box 13
 International Association of Poultry Instructors and Investigators
1910-1932 Box 13
 International Eugenics Congress, First
1912 Box 13
 International Health Board
1925-1928 Box 13
 International Institute of Statistics
1936-1940 11 folders Box 14
 International Union for the Scientific Investigation of Population Problems
1925-1939 17 folders Box 14-15
 Ireland, Alleyne
1922-1925 Box 15
 Irving, Lawrence
1939 Box 15
 Iwanow, E.
1922 Box 15
 Jackson, George S.
1922 Box 15
 Jackson, Stuart W.
1934-1939 Box 15
 James, Olivia
1926-1928 Box 15
 Janney, J.H.
1939 Box 15
 Jastrow, Joseph
1928 Box 15
 Jeanneney, G.
1926-1928 Box 15
 Jencks, Gardner
1938 Box 15
 Jenkins, James Iredell
1939 Box 15
 Jennings, Herbert Spencer
1899-1938 9 folders Box 15
 Jenss, Rachel-M.
1930 Box 15
 Jewett, F.B.
1940 Box 15
 Johannsen, W.
1910-1920 Box 15
 Johns Hopkins University
1919-1934 3 folders Box 16
 Johnson, Alvin
1927-1930 Box 16
 Johnson, Douglas
1925 Box 16
 Johnson, Gerald
1938-1940 Box 16
 Johnstone, James
1902 Box 16
 Jones, Bassett
1932-1940 4 folders Box 16
 Jones, L.J.
1927 Box 16
 Jones, T.W.
1907 Box 16
 Jordan, H.E.
1935 Box 16
 Journal Club
1927-1936 Box 16
 Kacprzak, Martin
1923-1929 Box 16
 Kafemann, R.S.
1925 Box 16
 Kalmus, Edwin F.
1938 Box 16
 Kast, Ludwig
1933 Box 16
 Katterfeld, L.E.
1938 Box 16
 Kau, L.
1933 Box 16
 Kauffman, C.H.
1906 Box 16
 Kaunitz, Julius
1929 Box 16
 Keen, W.W.
1921-1924 Box 16
 Keith, Arthur
1910, 1931 Box 16
 Kelemen, Frank
1934 Box 16
 Kelly, Fred C.
1919-1940 4 folders Box 16
 Kelly, Howard A.
1925-1928, 1940 Box 16
 Kelynack, T.N.
1934 Box 16
 Kendall, Warren C.
1929-1942 Box 16
 Kennard, T. and M.
1931 Box 16
 Ketron, L.W.
1939 Box 16
 Key, Helmer
1937 Box 16
 Keyes, Homer Eaton
1935-1936 Box 16
 Kieffer, John E.
1940 Box 16
 Kindler, Hans
1932 Box 16
 King, Helen Dean
1926 Box 16
 Kingsbury, John A.
1935-1940 Box 16
 Kinsey, Alfred C.
1939 Box 16
 Kirchwey, Freda
1935 Box 16
 Kirkbride, Franklin B.
1938 Box 16
 Klebs, Arnold C.
1927-1939 Box 16
 Klinefelter, Harry F.
1933-1934 Box 16
 Knauth, Oswald W.
1923 Box 16
 Knibbs, Sir George H.
1928 Box 16
 Knopf, Alfred
1940 Box 16
 Knopf, S. Adolphus
1926 Box 16
 Kofoid, C.A.
1935 Box 16
 Kohler, Ineson
1905-1937 Box 16
 Kooiman, H. N.
1923-1924 Box 16
 Kopp, Marie E.
1940 Box 16
 Korzybski, Alfred
1923-1940 3 folders Box 16
 Kosswig, K.
1938 Box 16
 Kostitzin, V.A.
1938 Box 16
 Krebs, Sonnin
1936 Box 16
 Kroeber, A.L.
1933 Box 16
 Kronenberg, J.F.
1926 Box 16
 Krutch, Joseph Wood
1936 Box 17
 Kung, Hsien Wu
1925-1926 Box 17
 LaFarge, C. Grant
1925-1928 Box 17
 Lafleur, Laurence J.
1940 Box 17
 La Gorce, John Oliver
1940 Box 17
 Lancaster Press, Inc.
1925-1926 Box 17
 Lancet
1937 Box 17
 Landauer, Walter
1938 Box 17
 Landor, J.V.
1937 Box 17
 Lane, Gertrude B.
1925 Box 17
 Langley, S.P.
1901 Box 17
 Lankaster, E. Ray
1902 Box 17
 Larkey, Sanford V.
1940-1942 Box 17
 Lashley, K.S.
1937 Box 17
 Lawrence, Philip S.
1938 Box 17
 Lawrence and Wishart Limited
1938 Box 17
 Lazaron, Morris S.
1935 Box 17
 Leach, L.
1937 Box 17
 Leady, Agnes B.
1927 Box 17
 Leavitt, Julian
1925 Box 17
 Le Blanc, Thomas J.
1925-1933 3 folders Box 17
 Lee, Margaret L.
1923 Box 17
 Leidy, Joseph
1926 Box 17
 Leighton, J. and J., Limited
1934 Box 17
 LeRiche, Harding
1938-1940 Box 17
 Leupold, Richard J.
1924 Box 17
 Leventhal, Albert Rice
1934-1935 Box 17
 Lewis, A. Nelson
1929-1934 Box 17
 Lewis, Clarence
1919-1940 Box 17
 Lewis, William Mather
1934 Box 17
 Liebisch, Bernhard
1901-1903 Box 17
 Lillie, Frank R.
1902, 1920-1939 Box 17
 Lincoln, Leroy A.
1931 Box 17
 Lindsey, Alton A.
1939 Box 17
 Lindsey, Arthur Ward
1936-1938 Box 17
 Linn, W.C.A.
1931 Box 17
 Lipschütz, A.
1929-1930 Box 17
 Livingston, Burton E.
1929 Box 17
 Locke, C.E., Manufacturing Company
1902 Box 17
 Lodge, Olive
1937-1938 Box 17
 Loeb, Jacques
1900-1923 Box 17
 Loeb, Leo
1920-1931 Box 17
 Logistic Curve
1937-1940 Box 17
 Lorimer, Frank
1931-1934 Box 17
 Lotka, Alfred J.
1921-1940 12 folders Box 17
 Lovejoy, A.O.
1937 Box 18
 Lowell, A. Lawrence
1905 Box 18
 Ludwig, De H.
1928-1929 Box 18
 Lund, Frederick H.
1938 Box 18
 Lundborg, H.
1927 Box 18
 Lurman, Theodor G., Jr.
1939 Box 18
 Lutz, Frank E.
1906-1907 Box 18
 Macaulay, Fred R.
1940 Box 18
 MacDonald, Arthur
1921 Box 18
 MacDuff, Douglas
1902 Box 18
 MacFarlane, Andrew
1919-1921 Box 18
 Maclean, John
1928 Box 18
 MacMillan Company
1902, 1922 Box 18
 Malinowski, Bronislaw
1935-1939 Box 18
 Mallet, Lady
1932 Box 18
 Mallet, Sir Bernard
1927-1931 14 folders Box 18
 Malloch, Archibald
1932-1936 Box 18
 Maloevf, N.S.
1937-1939 Box 18
 Manca, G.
1901 Box 18
 Mank, Edith Webster
1933 Box 18
 Mann, Lucille
1940 Box 18
 Mann, W.W.
1934 Box 18
 Marburg, Theodore
1933, 1939 Box 18
 Marchant, Sir James
1937-1939 Box 18
 Mark, E.L.
1900, 1908 Box 19
 Markel, Lester
1929 Box 19
 Marshall, L.C.
1930 Box 19
 Marshall, William
1906-1939 Box 19
 Martin, J. Holmes
1926-1936 Box 19
 Maryland Academy of Sciences
1930-1931 Box 19
 Maryland Club
1922-1940 Box 19
 Mason, Max
1929 Box 19
 Maternal Health Association
1931-1935 Box 19
 Maternity Center Association
1932 Box 19
 Maxim, Sir Hiram Stevens
1911-1912 Box 19
 Mayer, Paul
1907 Box 19
 McAtee, Waldo L.
1932-1940 Box 19
 McCarthy, Catherine
1938 Box 19
 McClung, C.E.
1932 Box 19
 McClure, Roy D.
1928-1940 Box 19
 McCollum, E.V.
1934, 1938 Box 19
 McDuffee, Mrs. E.A.
1895, 1906-1907 Box 19
 McFall, R.J.
1926-1927 Box 19
 McGuire, Constantine E.
1925-1928 Box 19
 McLanahan, Austin
1931 Box 19
 McMaster, W.H.
1922-1924 Box 19
 McMillan, James
1901 Box 19
 McPherson, Clara L.
1938 Box 19
 McQuiston, W. Carlton
1926 Box 19
 Meidell, Birger
1926-1928 Box 19
 Mells, Eder Y. De
1928 Box 19
 Mencken, H. L.
1923-1940 15 folders Box 19
 Mendenhall, T.C.
1905 Box 20
 Merant, G. M.
  Box 20
 Merriam, John C.
  Box 20
 Merritt-Hawkes, O.A.
1928-1940 Box 20
 Metron
1930-1935 Box 20
 Metropolitan Life Insurance Company
1932-1936 Box 20
 Mettee, Andrew H.
1931 Box 20
 Metz, Charles W.
1929-1940 Box 20
 Meyer, Adolf
1934-1938 Box 20
 Meyers, Charles F.
1902 Box 20
 Miani, D.
1938 Box 20
 Michelson, A.A.
1923-1924 Box 20
 Migration. Notes
  Box 20
 Milbank, Albert
1935-1938 Box 20
 Miller, Dayton C.
1923 Box 20
 Miller, Herbert Adolphus
1923-1924 Box 20
 Miller, Iva
1923-1924 Box 20
 Miller, S.R., Jr.
1903 Box 20
 Millikan, R.A.
1920-1929 Box 20
 Mills, J.J.
1924 Box 20
 Miner, John R.
1931-1940 Box 20
 Mjoen, Jan Alfred
1926 Box 20
 Mockeridge, Florence A.
1926 Box 20
 Moffett, W. Edwin
1938 Box 20
 Mollison, Theodore
1933-1935 Box 20
 Mondolfo, A.
1938 Box 20
 Money, Sir Leo Chiozza
1937 Box 20
 Montagu, Ashley
1938-1940 Box 20
 Moore, J. Percy
1907 Box 20
 Moran, S.A.
1903 Box 20
 Morant, G.M.
1924 Box 20
 Morgan, O.S.
1912 Box 20
 Morgan, Thomas Hunt
1911-1931 3 folders Box 20
 Morris, Mrs. Roland S.
1934 Box 20
 Morse, Gertrude Davis
1938 Box 20
 Morse, W.J.
1920 Box 20
 Mortara, Giorgio
1932-1939 Box 20
 Morton, Dudley J.
1929 Box 20
 Mudgett, Bruce D.
1921 Box 20
 Muhlmann, M.
1925 Box 20
 Mullenix, Rollin C.
1924 Box 20
 Munson, W.H.
1901-1902 Box 20
 Munzer, Fr. Th.
1939-1940 Box 20
 Murbach, Louis
1902 Box 20
 Murphy, Douglas P.
1925 Box 20
 Murphy, Ruth
1937-1940 Box 20
 Murray, Cecil D.
1923-1926 Box 20
 Murray, George R.
1921-1922 Box 20
 Murray, Henry A., Jr.
1924-1940 Box 20
 Murray, John
1926 Box 20
 Murray, John G., Jr.
1930 Box 20
 Murray, Thomas C.
1924-1925 Box 20
 Musselman, J.R.
1925 Box 20
 Mutual Life Insurance Company of New York
1923, 1930 Box 20
 Myslivec, Vaclav
1937-1945 Box 20
 Nachtsheim, Hans
1927 Box 20
 Nakamura, Kaju
1925 Box 20
 Nation
1931-1933 Box 20
 National Academy of Sciences
1919-1924 4 folders Box 20
 National Association for the Advancement of Colored People
1927-1936 3 folders Box 21
 National Library of Peiping
1939-1940 Box 21
 National Research Council
1923-1941 3 folders Box 21
 Neal, H.V.
1921 Box 21
 Neisskopf, J.
1940 Box 21
 Nelson, Louise A.
1923 Box 21
 Netusil, F.J.
1921-1927 Box 21
 New York Academy of Medicine
1931, 1936 Box 21
 New York Times
1929 Box 21
 Newsholme, Sir Arthur
1920, undated Box 21
 Niceforo, A.
1929 Box 21
 Nickerson, Hoffman
1935-1936 Box 21
 Nicoll, Matthias, Jr.
1929 Box 21
 Niles, Henry E.
1921-1940 2 folders Box 21
 Nock, Albert Jay
1934 Box 21
 Nock, Arthur D.
1939 Box 21
 Obituaries
1940-1941 Box 21
 O'Connor, Basil
1934 Box 21
 Ogburn, William F.
1929 Box 21
 Ogden, C.K.
1932-1936 2 folders Box 21
 Oliphant, Herman
1929 Box 21
 Oliver, James
1920-1925 Box 21
 Orton, Lawrence M.
1925 Box 21
 Osborn, Henry Fairfield
1924, 1932-1935 Box 21
 Osborne, Carl N.
1937-1938 Box 21
 Owens, Hamilton
1929-1940 Box 21
 Packer, Gilbert
1915 Box 21
 Page, Walter H.
1907 Box 21
 Park, Edwards A.
1940 Box 21
 Park, Thomas
1933-1941 Box 21
 Parker, G.H.
1902, 1934 Box 21
 Parker, John H.
1929 Box 21
 Parker, Sylvia L.
1925-1927 Box 21
 Parkes, A.L.
1925 Box 21
 Parrish, H.
1926 Box 21
 Parshley, Howard Madison
1919-1940 2 folders Box 21
 Paszkiewicz, Ludwik
1929 Box 21
 Paton, Stewart
1927-1928 Box 21
 Patten, William
1899-1904, 1921-1932 Box 21
 Peabody Conservatory of Music
1939 Box 21
 Peard, F. Furnival
1939 Box 21
 Pearson, Karl
1901-1937 9 folders Box 22
 Pearson, Maria S.
1905-1927 Box 22
 Penniman, T.K.
1936 Box 22
 Penniman, W.B.D.
1933 Box 22
 Perkins, Eben F.
1941 Box 22
 Perley, C.A.
1929 Box 22
 Peterson, Houston
1927 Box 22
 Petrunkevitch, Alexander
1920-1923 Box 22
 Phelps, Jennie
Undated Box 22
 Phillips, A.G.
1924 Box 22
 Phillips, John C.
1926 Box 22
 Piddington, R.A.
1937-1940 Box 22
 Pinchot, Cornelia Bryce
1938 Box 22
 Pincus, Gregory
1939 Box 22
 Pithotomy Club
1936-1938 Box 22
 Pitt-Rivers, George H.L.F.
1931-1937 2 folders Box 22
 Plate, Ludwig
1906 Box 22
 Platt, Gordon J.
1920 Box 22
 Polignac, Marquis M. De
1937 Box 22
 Pontifical College Josephinum
1936 Box 22
 Pooler, Blanche
1927, 1940 Box 22
 Popoff, M.
1914 Box 22
 Population Association of America
1934-1936 2 folders Box 22
 Porter, Georgia P.
1936 Box 22
 Porter, W.T.
1901-1911 Box 22
 Potter, George F.
1927-1929 Box 22
 Potts, F.A.
1934 Box 22
 Poultry Science Association
1941 Box 22
 Powell, Frederic H.
1939 Box 22
 Power, D'Arcy
1933 Box 22
 Prather, William L.
1903 Box 22
 Pratt, Joseph H.
1920-1921 Box 22
 Prechtl, John
1928-1929 Box 22
 Prentiss, C.W.
1901 Box 22
 Prokop, Peter
1937 Box 22
 Punnett, R.C.
1912-1923 Box 22
 Purchase orders
1904-1939 Box 22
 Pusey, William Allen
1933 Box 22
 Putter, August
1901-1923 Box 22
 Quarterly Review of Biology
1927-1940 3 folders Box 22
 Quattrone, F.
1922 Box 22
 Quirk, James R.
1930-1932 Box 22
 Radcliffe, George
1937-1940 Box 22
 Rajchman, Ludwik
1923-1925 Box 22
 Ramon y Cajal, S.
1934 Box 22
 Randall, Blanchard
1923-1936 Box 22
 Rashevsky, N.
1939-1941 Box 22
 Rau, Phil
1938-1940 Box 22
 Raymond, Alice
1920 Box 22
 Reed, Howard S.
1905-1909 Box 22
 Reed, Lowell J.
1938-1943 Box 22
 Reed, Walter
1902 Box 23
 Reighard, Jacob
1899-1908 Box 23
 Research Council on Problems of Alcohol
1938-1940 Box 23
 Rice, John L.
1937 Box 23
 Rice, Stuart A.
1932 Box 23
 Richards, Oscar W.
1933-1936 Box 23
 Richardson, Russell
1907-1908 Box 23
 Richter, ___
1906 Box 23
 Richter, Curt P.
1934-1938 Box 23
 Rignano, Eugenio
1920-1925 Box 23
 Riley, C.F. Curtis
1905 Box 23
 Rimsky-Korsakoff, V.N.
1940 Box 23
 Ringrose, Hyacinthe
1938 Box 23
 Ritchie, Albert C.
1928 Box 23
 Ritter, William E.
1907-1933 Box 23
 Roberts, Morley
1934-1938 Box 23
 Robinson, Canby
1939 Box 23
 Robinson, David M.
1940 Box 23
 Rockefeller Foundation
1930-1936 2 folders Box 23
 Rockefeller Institute
1931-1934 2 folders Box 23
 Rockefeller, Nelson
1940 Box 23
 Roemer, Th.
1916 Box 23
 Rogers, Louis A.
1937 Box 23
 Rolleston, Sir Humphry
1925-1933 Box 23
 Rolph, George M.
1927 Box 23
 Roosevelt, Nicholas
1927 Box 23
 Roosevelt, Theodore
1911 Box 23
 Root, Theophilus H.
1928-1929 Box 23
 Rose, R. Contee
1936 Box 23
 Ross, Frank A.
1930 Box 23
 Rous, Peyton
1910 Box 23
 Rowe, R.H.
1910 Box 23
 Royal Italian Consulate
1929 Box 23
 Royal Society of Arts
1939 Box 23
 Royal Society of Medicine
1940 Box 23
 Royal Statistical Society
1932-1934 Box 23
 Royster, L.T.
1935 Box 23
 Rugiu, Giulio
1929 Box 23
 Ruhland, George C.
1926 Box 23
 Russell, A.J.H.
1925-1940 Box 23
 Russell, Edward John
1933 Box 23
 Russell, Edward Stuart
1934-1944 2 folders Box 23
 Russell, E. Walter
1934 Box 23
 Russell, Walter
1935 Box 23
 Ruthven, Alexander G.
1907-1908, 1936 Box 23
 Sabin, Florence Rena
1926 Box 23
 Saint John's College
1928-1936 7 folders Box 23
 Salaman, Redcliffe
1912-1913, 1934-1935 Box 24
 Sanger, Margaret
1921-1935 12 folders Box 24
 Sargeant, Sara Ward
1940 Box 24
 Sargent, Porter
1938-1940 Box 24
 Saturday Evening Post
1935 Box 24
 Saunders, P.H.
1934-1936 Box 24
 Schaffner, B.F.
1929 Box 24
 Scheltema, A.M.P.A.
1927 Box 24
 Schieffelin, Barbara
1927-1928 Box 24
 Schlomovitz, B.H.
1926-1927 Box 24
 Schmalhausen, I.
1930 Box 24
 Schmalhausen, Samuel D.
1929 Box 24
 Schmidt, Johs
1921-1922 Box 24
 Schmidt, Peter
1927 Box 24
 Schonwetter, M.
1928-1929 Box 24
 Schultz, Henry
1927-1930 Box 24
 Schuster, M. Lincoln
1934-1935 Box 24
 Schweizerbart'sche Verlagsbuchhandlung
1934-1936 Box 24
 Scientia
1926-1931 Box 24
 Seashore, C.E.
1928 Box 24
 Segall, J.B.
1928-1940 Box 24
 Seligmann, C.G.
1913 Box 24
 Sergeant, Elizabeth Shepley
1926 Box 24
 Sewall, Henry
1922-1924 Box 24
 Seymour, J.H.
1927 Box 24
 Shapovalov, Michael
1907-1922 Box 24
 Shaw, Wilfred B.
1936 Box 24
 Sherman, M.S.
1926 Box 24
 Sherzer, ___
1903 Box 25
 Shipley, Maynard
1925-1926 Box 25
 Shriver, Alfred Jenkins
1929-1935 Box 25
 Shufeldt, R.W.
1902 Box 25
 Shull, George Harrison
1905-1924 Box 25
 Sidlo, Thomas L.
1938 Box 25
 Siegfried, Andre
1925-1927 Box 25
 Sieglinger, John B.
1925 Box 25
 Sigerfoos, Charles P.
1903 Box 25
 Sigerist, Henry E.
1931 Box 25
 Sigma Xi
1933-1934 Box 25
 Simon, Charles E.
1920-1921 Box 25
 Simpson, George Gaylord
1938-1940 Box 25
 Simpson, John S.
1918 Box 25
 Singer, Charles
1931-1932 Box 25
 Sixteen West Hamilton Street Club
1933-1936 Box 25
 Skinner, Edward R.
1936 Box 25
 Sloan, Sam
1912 Box 25
 Slosson, Edwin E.
1908 Box 25
 Smallwood, William Martin
1939-1941 Box 25
 Smith, Barry C.
1927 Box 25
 Smith, Frank R., Jr.
1940 Box 25
 Smith, H.C.
1904 Box 25
 Smith, Ira M.
1932 Box 25
 Smith, Hugh M.
1902 Box 25
 Smith, Ruby
1935 Box 25
 Snyder, Carl
1924-1925 Box 25
 Social Science Research Council
1928-1930 5 folders Box 25
 Social Science Research Council. Advisory Committee on Population
1928-1930 2 folders Box 25
 Societe de Biotypologie
1933-1935 Box 25
 Societe de Statistique
1925-1927 Box 25
 Societe Linneene de Lyon
1925-1929 Box 25
 Society for Experimental Biology and Medicine
1927-1929 Box 25
 Society for Promoting Mutual Friendly Relations between Russia and America
1915 Box 25
 Society of American Foresters
1927 Box 25
 Sokoloff, Boris
1927-1928 Box 25
 Solter, George A.
1940 Box 25
 Soper, Fred L.
1926 Box 25
 Soper, George A.
1925-1928 Box 25
 Sorensen, S.P.L.
1924 Box 25
 Southern Maryland Society
1928 Box 25
 Souza, G.H. DePaula
1920-1929 Box 25
 Spear, B.E.
1926 Box 25
 Spencer, Clara J.
1934 Box 25
 Spilman, Helene Childaux
1939 Box 25
 Sprigge, Squire
1929 Box 25
 Spring-Rice, Margareth
Undated Box 25
 Stahley, G.D.
1902 Box 25
 Stanley of Louisville
1928 Box 25
 Standard Oil Company
1901 Box 25
 Stanley-Gardner, I.
1928 Box 25
 Stanton, E. MacD.
1926, 1933 Box 25
 Stark, Francis Raymond
1934-1935 Box 25
 Starling, Ernest H.
1920-1923 Box 25
 Starling, Florence
1920 Box 25
 Stayton, W.H.
1937-1938 Box 25
 Stefansson, Vilhjalmur
1919-1939 10 folders Box 26
 Steggerda, Morris
1940 Box 26
 Stephan, Frederick F.
1940 Box 26
 Stevens, Henry J.
1931 Box 26
 Stevenson, Paul H.
1926 Box 26
 Stevenson, T.H.C.
1925 Box 26
 Stewart, Mary B.
1928-1929 Box 26
 Stewart, Walter W.
1922, 1940 Box 26
 Stirling, M.W.
1940 Box 26
 Stirling, William
1901 Box 26
 Stockard, Charles R.
1925-1929 Box 26
 Stocks, Percy
1927 Box 26
 Stoddard, Lothrop
1927 Box 26
 Stoeckel, Robins Battell
1926 Box 26
 Stokes, Muriel
1934-1938 Box 26
 Stokes, Richard L.
1934 Box 26
 Stopes, Marie C.
1937 Box 26
 Stout, Wesley Winans
1938 Box 26
 Straus, Herbert N.
1923 Box 26
 Strauss, Lewis H.
1920-1939 Box 26
 Strecker, Edward A.
1932 Box 26
 Streisand, Hugo
1932 Box 26
 Strong, R.M.
1919-1927 Box 26
 Strong, Richard P.
1921 Box 26
 Strube, Gustav
1933, 1937 Box 26
 Summer, F.B.
1914, 1928 Box 26
 Sumner, Walter Taylor
1930 Box 26
 Sundwall, John
1923 Box 26
 Surface, Frank M.
1910-1923 2 folders Box 26
 Survey
1926-1927 Box 26
 Sutton, Alan C.
1921-1930 Box 26
 Sweeney, James Shirley
1923-1940 3 folders Box 26
 Sweet, Louis D.
1924 Box 26
 Swift, Donald S.
1934 Box 26
 Swift, Fletcher Harper
1929, 1937 Box 26
 Sydenstricker, Edgar
1920-1922 Box 26
 Symington, Mrs. Donald
1938 Box 26
 Szabo, Istvan
1930-1936 Box 26
 Szabo, Margit
1936 Box 26
 Tattersall, W.M.
1937 Box 27
 Taylor, Griffith
1930 Box 27
 Taylor, Henry Osborn
1924-1927 Box 27
 Taylor, J. Madison
1924-1925 Box 27
 Taylor, Norah B.
1925 Box 27
 Teachers Insurance and Annuity Association of America
1936 Box 27
 Tedin, Olof
1925 Box 27
 Teg, William
1927 Box 27
 Terao, Arata
1926-1930 Box 27
 Terroine, Emile F.
1925-1926 Box 27
 Thayer, Fred I.
1938 Box 27
 Thayer, William S.
1922-1929 Box 27
 Theis, Louise Morgan
1937 Box 27
 Thieme, Georg
1941 Box 27
 Thies, Elisabeth S.
1922-1925 Box 27
 Thile, Otto
1902 Box 27
 Thing, Alice
1925 Box 27
 Thomas, Arthur H., Company
1925 Box 27
 Thomas, Charles C.
1927-1935 5 folders Box 27
 Thomas, Paul B.
1929 Box 27
 Thomas, William S.
1922 Box 27
 Thompson, Agnes M.
1937-1940 Box 27
 Thompson, C. Fred
1921-1922 Box 27
 Thompson, D'Arcy W.
1927-1937 Box 27
 Thompson, J. Walter, Company
1922 Box 27
 Thompson, Nell
1937-1940 Box 27
 Thompson, Richard J.C.
  Box 27
 Thompson, Robert J.
1928 Box 27
 Thompson, Stewart G.
1922-1923 Box 27
 Thompson, Warren S.
1923-1924 Box 27
 Thompson, Willard C.
1921, 1932 Box 27
 Thorndike, Edward L.
1940 Box 27
 Thurstone, L.L.
1926 Box 27
 Time
1934 Box 27
 Tinker, E.L.
1936 Box 27
 Titcomb, W.P.
1901 Box 27
 Todd, T. Wingate
1923-1936 Box 27
 Tomanek, Ewald
1924 Box 27
 Tomlinson, Paul G.
1923 Box 27
 Torovsky, Adolph
1937, 1940 Box 27
 True, A.C.
1906 Box 27
 Tucker, William B.
1939-1940 Box 27
 Tucker, W.J.
1902-1903 Box 27
 Turner, F.M.
1928 Box 27
 Tydings, Millard
1932-1940 Box 27
 United States Census Office
1902 Box 27
 United States Collector of Customs
1903 Box 27
 United States Department of Agriculture
1901-1902, 1910 Box 27
 United States Department of State
1926 Box 27
 United States Fish Commission
1901-1902 
 United States Railroad Administration
1919 Box 27
 Universita Cattolica del Sacro Cuore
1928 Box 27
 University of Adelaide
1939 Box 27
 University of Chicago
1926-1937 Box 27
 University of London
1924-1937 2 folders Box 27
 University of Michigan
1932-1939 2 folders Box 27
 University of Michigan-Alumni Association
1934-1935 Box 27
 University of Texas
1903 Box 27
 University of Wisconsin Press
Undated Box 27
 Unknowns
1902-1940, undated Box 27
 Upton, Pattie Templetown
Undated Box 27
 Van Cleave, H.J.
1939-1940 Box 28
 Van Kleeck, Mary
1925 Box 28
 Van Riper, Walker
1927-1940 Box 28
 Varigny, M.H. de
1926 Box 28
 Varney, Lucius E.
1921 Box 28
 Vaughan, George
1935 Box 28
 Vaughan, T. Wayland
1921 Box 28
 Vaughan, V.C.
1901 Box 28
 Vavilov, N.I.
Undated Box 28
 Veblen, Oswald
1924 Box 28
 Vermont Department of Public Health
1926 Box 28
 Verschuer, O. von
1933 Box 28
 Vial, L.G.
1937-1938 Box 28
 Viguin, D.C.
1901-1902 Box 28
 Vincent, George E.
1924-1929 Box 28
 Vitale, Alfredo
1920 Box 28
 Volterra, Virginia
1940 Box 28
 Volterra, Vito
1937-1940 Box 28
 Voorhis, E.
1922 Box 28
 Wade, Joseph S.
1940 Box 28
 Wagner, George
1903-1911 Box 28
 Walch, Mrs. E.
1935 Box 28
 Walcott, Frederick C.
1919-1938 3 folders Box 28
 Walker, Fred
1938 Box 28
 Walkey, C.E.J.
1913 Box 28
 Wallace, Alfred Russel
1909 Box 28
 Wallengren, Hans
1903 Box 28
 Walsh, James J.
1930 Box 28
 Walton, A.C.
1928 Box 28
 Walton, James A.
1933 Box 28
 Ward, H.B.
1901-1903 Box 28
 Wardle, Ed. B.
1939 Box 28
 Warner, Stackpole and Bradlee
1919-1920 Box 28
 Waterman, J.
1929 Box 28
 Watkins, J.E.
1939 Box 28
 Watkinson, Grace B.
1906 Box 28
 Watson, Herbert L.
1934 Box 28
 Watson, John B.
1921-1940 Box 28
 Waxter, T.J.S.
1928 Box 28
 Weed, Lewis H.
1927, 1937 Box 28
 Weiskotten, H.G.
1924 Box 28
 Welch Memorial Library
1928 Box 28
 Welch, William H.
1916-1932 4 folders Box 28
 Weld, Lewis H.
1921 Box 28
 Wells, H.G.
1938 Box 28
 Welsh, John H.
1937-1938 Box 28
 Wharton, Laurence
1931 Box 28
 Wheeler, Dora
1932 Box 28
 Wheeler, William Morton
1910-1937 7 folders Box 28
 White, E. Grace
1938 Box 28
 White, W. Rushmer
1937 Box 28
 White, Warner G.
1902 Box 29
 White, William A.
1929 Box 29
 Whitehead, J.B.
1929 Box 29
 Whiting, Phineas W.
1920-1940 Box 29
 Whitman, C. O.
1909 Box 29
 Whitman, Ezra B.
1920 Box 29
 Whitney, C.A.
1929 Box 29
 Whitney, Jessamine S.
1939 Box 29
 Whitney, Leon F.
1925 Box 29
 Whyte, L.L.
1931, 1939 Box 29
 Wiegard, Annie Laurie
1933 Box 29
 Wiggam, A.E.
1931 Box 29
 Wight, Carol
1926 Box 29
 Willard, Daniel
1923-1940 Box 29
 Willard, Harley R.
1911-1938 Box 29
 Willard, Mary L.
1931 Box 29
 Willcox, Walter F.
1922-1940 5 folders Box 29
 Williams & Wilkins
1926-1932 Box 29
 Williams, Ira Jewell, Jr.
1925-1941 7 folders Box 29
 Williams, Robert
1939 Box 29
 Williamson, S.T.
1928 Box 29
 Willis, J.C.
1937-1938 Box 29
 Willoughby, R.R.
1928 Box 29
 Wilson, C.B.
1902 Box 29
 Wilson, Edwin Bidwell
1922-1936 8 folders Box 29
 Wilson, Elizabeth G.
1928-1929 Box 30
 Wilson, H.V.
1920 Box 30
 Wimpenny, R.S.
1941 Box 30
 Winchester, P.
1900 Box 30
 Winckel, Max
1928 Box 30
 Windisch, J.
1927 Box 30
 Wing, Leonard W.
1939 Box 30
 Winkelhagen, J.
1928 Box 30
 Winslow, C.E.A.
1920-1927 Box 30
 Winslow, Emma A.
1922 Box 30
 Winsor, Agnes
1940 Box 30
 Winsor, Charles P.
1926-1936 2 folders Box 30
 Wintrobe, M.M.
1929 Box 30
 Wislocki, George B.
1931-1940 Box 30
 Wnykoop Hallenbeck Crawford Company
1905 Box 30
 Wolfenden, Hugh H.
1925-1930 Box 30
 Wolff, Georg
1928-1930 Box 30
 Wolfson, Fruma
1941 Box 30
 Wood, Francis Carter
1928 Box 30
 Wood, Robert W.
1929-1930 Box 30
 Wood Jones, Frederick
1926 Box 30
 Woodger, J.H.
1929-1938 Box 30
 Woodruff, Charles E.
1901-1910 Box 30
 Woodruff, L.L.
1908, 1928 Box 30
 Woods, Alan C.
1927-1930 Box 30
 Woods, Charles D.
1906-1925 5 folders Box 30
 Woods, Frederick Adams
1927, undated Box 30
 Woodward, Robert S.
1906, 1914 Box 30
 Woodworth, R. S.
1926 Box 30
 Woofter, T.J., Jr.
1941 Box 30
 Woollcott, Alexander
1934-1936 Box 30
 Woollcott, Murilla
1933 Box 30
 Woollcott, William
1926, 1938 Box 30
 Worcester, D.C.
1905 Box 30
 World Population Conference
1927, undated Box 30
 Wright, Albert H.
1931 Box 30
 Wright, C.P.
1929 Box 30
 Wright, Herman P.
1929 Box 30
 Wright, Katharine
1921-1922 2 folders Box 30
 Wright, Quincy
1929-1930 Box 30
 Wyld, Norman
Undated Box 30
 Yatsu, Naohide
1926 Box 30
 Yerkes, Robert M.
1903-1940 3 folders Box 30
 Yntema, Hessel E.
1929 Box 31
 Yoke, Helen A.
1929 Box 31
 Young, Allyn A.
1926 Box 31
 Young, Hugh H.
1929 Box 31
 Yule, Udney
1903-1944 5 folders Box 31
 Zeliff, C. Courson
1939 Box 31
 Zobell, Claude E.
1934 Box 31
 Zucchero, P.J.
1941 Box 31
 Series II. Family Correspondence
1895-1946 Box 31-35

Correspondence to his mother, Ida May, his wife, Maud, and a small number of letters to family and friends. Plus, letters to his daughter, Penelope Pearl. Includes postcards written to Raymond Pearl from scientists all over Europe.

 ___, Agnes
1903 Box 31
 Archbold, Helen
1907 Box 31
 Arts Club of Washington
1918 Box 31
 Beauty Preparations
Undated Box 31
 Beckwith, Cora J.
1903 Box 31
 Benson and Miller
1907 Box 31
 Bird, J. Malcolm
1920 Box 31
 Bliss, Leon D.
1915 Box 31
 Bowie, L.
1936-1945, undated Box 31
 Brown, Alex, and Sons
1921 Box 31
 Crew, Helen C.
1928 Box 31
 Davis, Hattie
1905 Box 31
 Guttmacher, ___
1936 Box 31
 Halsbed, W.T.
1921 Box 31
 Harris, F.K.
1906-1909 Box 31
 Inglis, William
1903 Box 31
 Jennings, H.S.
1903 Box 31
 Kaempffert, Waldemar
1920 Box 31
 LeBlanc, Anna G.
1928 Box 31
 Parcek, Bertha A.
1907 Box 31
 Pearl, Frank, Jr.
1895, undated Box 31
 Pearl, Frank, Sr.
1924-1934, undated Box 31
 Pearl, Holman
1905-1909 Box 31
 Pearl, Ida May
1895-1928, undated 36 folders Box 31-32
 July, 1895
  Box 31
 August, 1895
  Box 31
 September, 1895
  Box 31
 October, 1895
  Box 31
 November, 1895
  Box 31
 December, 1895
  Box 31
 January, 1896
  Box 31
 February-March, 1896
  Box 31
 April, 1896
  Box 31
 May, 1986
  Box 31
 June, 1896
  Box 31
 September-October, 1896
  Box 31
 November, 1896
  Box 31
 December, 1896
  Box 31
 January, 1897
  Box 31
 February, 1897
  Box 31
 March, 1897
  Box 31
 April, 1897
  Box 32
 June-July, 1905
  Box 32
 August-September, 1905
  Box 32
 October, 1905
  Box 32
 November, 1905
  Box 32
 December, 1905
  Box 32
 January, 1906
  Box 32
 February-March, 1906
  Box 32
 April, 1906
  Box 32
 April-May, 1910
  Box 32
 June, 1910
  Box 32
 May-June, 1916
  Box 32
 July-August, 1916
  Box 32
 September-October, 1916
  Box 32
 May-July, 1924
  Box 32
 July, 1928
  Box 32
 Undated
  3 folders Box 32
 Pearl, Leslie G.
1935 Box 32
 Pearl, Maud
1901-1928, undated 59 folders Box 32-33
 June-July, 1901
  Box 32
 August-December, 1901
  Box 32
 January, 1902
  Box 32
 June, 1902
  Box 32
 July, 1902
  Box 32
 August, 1902
  Box 32
 September, 1902
  Box 32
 April, 1903
  Box 32
 June 6-15, 1903
  Box 32
 June 16-25, 1903
  Box 32
 September, 1903
  Box 32
 List, 1903
  Box 32
 April-July, 1904
  Box 32
 April, 1905
  Box 32
 May-June, 1907
  Box 32
 October-December, 1907
  Box 32
 May-July, 1908
  Box 32
 February-May, 1909
  Box 32
 June, 1909
  Box 32
 July, 1909
  Box 32
 August, 1909
  Box 32
 January-February, 1910
  Box 33
 July, 1910
  Box 33
 August, 1910
  Box 33
 December, 1910
  Box 33
 February, 1911
  Box 33
 November, 1911
  Box 33
 January-February, 1912
  Box 33
 June-July, 1912
  Box 33
 August, 1912
  Box 33
 September-December, 1912
  Box 33
 January-March, 1913
  Box 33
 August, 1913
  Box 33
 December, 1913
  Box 33
 1914
  Box 33
 1915
  Box 33
 January-April, 1916
  Box 33
 July-December, 1916
  Box 33
 February-April, 1917
  Box 33
 June, 1917
  Box 33
 July-August, 1917
  Box 33
 May-June, 1918
  Box 33
 October-December, 1918
  Box 33
 1919
  Box 33
 1920
  Box 33
 1921
  Box 33
 1922
  Box 33
 April-May, 1923
  Box 33
 June-July, 1924
  Box 33
 March, 1925
  Box 33
 1928
  2 folders Box 33
 1929
  Box 33
 Undated
  6 folders Box 33
 Pearl, Penelope M.
1931-1946 3 folders Box 34
 Pearl, Raymond
1879-1940 Box 34
 Pearl, Roswell T.
1904-1934 Box 34
 Pearl, Ruth DeWitt
1912-1931 Box 34
 Photographs
Undated Box 34
 Porter, George P.
1918 Box 34
 Postcards
1904-1936 Box 35
 University of Michigan
1945 Box 34
 Van Rensselaer, Alexander
Undated Box 34
 Van Tuyl, Mary C.
1944 Box 34
 Welch, William H.
1919 Box 34
 Yule, G. Udney
1924-1946 Box 34
 Yule, H.R.
1924 Box 34
 Series III. Works by Pearl
1900-1941 Box 36-38

Primarily research notes, with some originals of printed works.

 Aims and problems of the Department of Biology, and their development
1935 Box 36
 Animal Behavior
Undated Box 36

Research notes

 Bibliography
1900-1940 Box 36
 Biometry and Statistics
Undated Box 36

Research notes

 Congenital Malformations Problem
Undated Box 36
 Education
Undated Box 36

Research notes

 Environment, Geology, Forestry
Undated Box 36

Research notes

 Ethnology
Undated Box 36

Research notes

 Fertility, Fecundity, Marriage, Divorce, Birth Control, Sex
Undated Box 36

Research notes

 Foods, Feeding Habits
Undated Box 36

Research notes

 Funeral Discourse
Undated Box 36
 Heredity
Undated Box 36

Research notes

 History, Biography, Anecdotes
Undated Box 36

Research notes

 Identification Book
1918 Box 36
 Longevity, Senescence, Senility
Undated Box 36

Research notes

 Migration
Undated Box 36

Research notes

 Miscellaneous
Undated 13 folders Box 36-37

Research notes

 Mister Peabody is Puzzled
Undated Box 37
 Memorial dinner
1941 Box 37
 Mortality and Morbidity
Undated 2 folders Box 37

Research notes

 No Ballot for Aged
1939-1940 Box 37
 Physical Anthropology
Undated Box 37

Research notes

 Physiology
Undated Box 37

Research notes

 Plans for Research on the Biology of Life Duration and Extension
Undated Box 37
 Population
Undated Box 37

Research notes

 Problem of Human Fertility
Undated 3 folders Box 37
 Psychology and Psychiatry, Religion
Undated Box 37

Research notes

 Rate of Living
Undated 7 folders Box 37-38
 Research and Teaching in the Department of Biology...
1939 Box 38

with special reference to human biology.

 Sale of Library
1941 Box 38
 Sociology and Economics
Undated Box 38

Research notes

 Subject headings
Undated Box 38

for Research notes

 Series IV. Scrapbooks, Diaries and Notebooks
1902-1940 Box 39-56

Diaries, manuscripts, notebooks, scrapbooks, and scientific "commonplace books". The diaries consist of very brief daily entries with relatively little detail.

 Scrapbook: Volume 1
1922-1925 3 folders Box 39
 Scrapbook: Volume 2
1923-1926 Box 39
 Scrapbook: Volume 3
1919-1927 3 folders Box 39
 Scrapbook: Volume 4
1938-1939 3 folders Box 39-40
 Scrapbook: Volume 4a
1926-1928 3 folders Box 40
 Scrapbook: Volume 5
1928-1929 3 folders Box 40-41
 Scrapbook: Volume 6
1930-1933 3 folders Box 41
 Scrapbook: Volume 7
1934-1935 3 folders Box 41-42
 Scrapbook: Volume 8
1936-1938 5 folders Box 42
 Scrapbook: Volume 9
1939-1940 7 folders Box 42
 Scrapbook: Volume 10
1940 3 folders Box 42

Sympathy Telegrams

 Diaries, 1902-1925
  16 item(s) Box 43
 Diaries, 1921
  Box 44
 Diaries, 1926-1940
  15 item(s) Box 45
 Commonplace book, 1925
  Box 46
 Commonplace book, 1926
  Box 47
 Laboratory notebook, 1930
  Box 48
 Laboratory notebook, 1931
  Box 49
 Notebook, 1916
  Box 50

Includes "Memorandum of conversation with Dr. W. H. Welch at Maryland club, Balto., Nov. 18, 1916

 Notes, 1917
  Box 51
 Problem book, 1921-1923
  5 item(s) Box 52
 Unlabeled diary, 1905
September 28-October 8 Box 53
 Unlabeled diary, 1924, 1927
  Box 54
 Unlabeled diary, 1928
July-August Box 55
 Unlabeled notebook, 1929-1937
  2 item(s) Box 56

Includes quotations from letters (1932-1937) re: laboratory work. Also, Unlabeled Diary, 1918

 Series V. Photographs
1897-1940 1 folder Box 57
Originals can be found in the oversize flat-file drawers.

Miscellaneous formal and informal photographs depicting Pearl and his associates throughout his career. In addition to a few portraits of Pearl there is an image of researchers at the Maine Biological Laboratory, 1897, and one taken at the dinner at the 10th Annual Meeting of the American Association of Physical Anthropologists held in honor of the 70th birthday of Ales Hrdlicka.

 Raymond Pearl (reading at desk). [in his 40s-50s?]
  Box 57
 Breeze Brow? Clapboard house with 2 women on lawn
  Box 57

Brown (Sienna) print [picture postcard].

 Our First Residence in Orono [Maine]
  Box 57

Clapboard house with 3 figures on walk. Brown (Sienna) print [picture postcard].

 W.H.W. at the Monument of Brillat-Savarin, inaugurales
1927 Sept. 27 Box 57

Dr. Raymond Pearl from A.C.?K."

 Raymond Pearl. [Portrait in his 40s-50s?]
  Box 57
 Raymond Pearl. [Portrait in his 20s-30s?]
  Box 57

B/w print (seems brown)

 Raymond Pearl. [Portrait in his 30s-40s?].
  Box 57
 Advisory Board. School of Public Health
  Box 57

Group photo. B/w print. 8" x 10". 11 men seated at a long table in a library. Raymond Pearl is 4th from the left.

 M[aine] B[iological] L[aboratory] Investigators
1897 Box 57

Group photo. B/w print. 7 1/2" x 9 1/2" mounted on 10" x 11" board (damaged). [Pearl does not appear to be in the photograph].

 Schouw-wand met Deur [Chimney-wall with Door]
  Box 57

B/w print. 7" x 9" mounted on 10 1/2" x 12 1/2" board. Fireplace, door, and desk in Dutch living room.

 Dinner of the Tenth Annual Meeting of the American Association of Physical Anthropologists, in Honour of the 70th Birthday of Ales Hrdlicka, Philadelphia
1939 April 41" tear on right edge.Box 57

Abstract: Group of men and women, seated at table for Association of Physical Anthropologists; Raymond Pearl is at the head table, 5th from the right.

Access digital object:
http://diglib.amphilsoc.org/fedora/repository/graphics:5698

 American Statistical Association. 100th Anniversary Dinner. M.I.T.
1939 November 27 Box 57

Group photo. B/w print. 6 1/2" x 16 1/2". Raymond Pearl at center of head table above flowers (middle-top of photo.).

 Raymond Pearl in suit. [in his 40s-50s?]
  Box 57
 Raymond Pearl (laughing)
  Box 57

B/w print. 5" x 6 1/2" (fallen off its 8" x 10" mount). [Not well focused. Possibly an enlarged detail of another photograph?].

 Unidentified group on the steps of a large building
  Box 57

B/w print. 13" x 16 1/2". "By S. Chickering [or Schickering] 1907." 1" tear on right edge.

 Series VI. Certificates
1903-1940, n.d. 2 folders Box 57
Originals can be found in the oversize flat-file drawers.
 Certificates
1903-1940, n.d. 1 folder Box 57
Originals can be found in the oversize flat-file drawers.
 Diplomas
1919, 1935, n.d. 1 folder Box 57