ca. 7000 items (14.5 linear ft.)..
This is a diverse collection, including correspondence, drafts of letters, notes and notebooks (on biometric methods; tables and formulae; science, nature and method; coefficient and correlation; vitalism; Japanese language); commonplace book (1924); autobiography; and over one hundred folders of unpublished writings.
The correspondence and other material covers a variety of topics, including biology, eugenics, evolution and natural selection, human heredity, paramecia, protozoa genetics, U.S. immigration policy. There is much on the Seventh International Congress of Zoology (1907); letters to his father and wives, and from students and colleagues on his seventy-fifth birthday, 1943 (1 v.); diplomas and certificates of membership; and photographs.
Herbert Spencer Jennings was a naturalist and geneticist. He taught botany and zoology at various universities in the United States and abroad. He specialized in research on the physiology of micro-organisms, animal behavior, and genetics.
Table of contents (30 p.) available in the repository.