Includes correspondence, autobiographical notes, addresses, articles, and drawings. The collection reflects Riddle's interests in breeding, heredity, and evolution. He was interested in humanism and the presentation of biological and evolutionary theories. There is much information on Riddle's activities in favor of freedom of scientific teaching, especially in high schools.

Known for his pioneering work on Athens in the fifth century BC, Benjamin Dean Meritt spent most of his career at the Institute for Advanced Study, where he developed a world-renowned center for the study of Attic epigraphy, or Greek inscriptions. Meritt reconstructed, with A.B. West, the inscribed tribute-quota lists of the Athenian Empire and is perhaps best known for his work on fifth century BC Athenian finances, which resulted in the four-volume Athenian Tribute Lists, co-authored with H.T. Wade-Gery and M.F. McGregor.

This collection contains correspondence, reports, notes, and notebooks. Clarke's participation in various organizations is documented, including the American Philosophical Society, American Chemical Society, American Otological Society, and the American Society of Biological Chemists. His chemistry research is detailed in thirteen notebooks, 1903-1971 (the 1903 volume is on photographic chemistry and processes). There is also one volume on the clarinet, for Clarke was an expert clarinetist. The personal and family correspondence is principally with Mrs. Dorothy Clarke Middleton and Mrs. Agnes Helfreich Clarke.

Wolfgang Köhler was an internationally recognized leader in experimental psychology. Along with Max Wertheimer and Kurth Koffka, he was a founder of Gestalt psychology, which strongly affected the development of psychology for more then half a century. The Wolfgang Köhler Papers consist of 8 linear feet and are arranged into eight series: correspondence, grant material, lectures, manuscripts, notes, reports of assistants, research notebooks, and photographs and slides. The material relates to Köhler's career as one of the founders of Gestalt Psychology, and work as a experimental researcher.

The Corner collection includes correspondence, biographical and research data, lectures, publications, notebooks and drawings, and also photographs. He was both a scientist, specializing in mammalian reproduction and the female reproduction cycle (being a co-discoverer of the hormone progesterone along with Willard M. Allen), and a medical historian writing both biography and institutional history.

Correspondence, notebooks, research data related to Cole's career as the first director at the Hospital of the Rockefeller Institute of Medical Research, 1908-1937. His research of pneumonia was conducted when the disease was epidemic. Personal correspondence reflect Cole's life as a medical resident at Johns Hopkins, 1899-1908. Documented are his memberships in leading medical organizations throughout his career, including the Association of American Physicians and the New York Academy of Medicine. This collection showcases the evolving changes in the medical profession from practicing physician to clinician.