Polysaccharides, Bacterial

Dr. Frank Horsfall was a microbiologist with the Rockefeller Hospital from 1934 to 1960, after which he became Director of the Sloan-Kettering Institute for Cancer Research until his death in 1971. Collection contains correspondence, diaries, memoranda, drafts of articles, laboratory studies and notes, reprints, printed matter, and photos.

Michael Heidelberger (1888-1991) is known as one of the founders of quantitative immunochemistry, and in the course of his career studied, among others, bacterial polysaccharides (particularly pneumococcal), as well as the immunochemistry of proteins, antibodies, and antigens. The papers deal primarily with Heidelberger's career as a teacher, researcher, and active member of the scientific community.