Papers consist of letters, reports, addresses and lectures, relating to biological chemistry and other scientific topics, the Rockefeller Institute for Medical Research, refugee scientists, professional associations, etc.

This collection includes correspondence, research data, reviews of grant proposals, organizations participated in, laboratories worked for, and student recommendations. The correspondence in the collection dates primarily to the 1960s-70s, when Mildred Cohn worked at the University of Pennsylvania and at the Institute for Cancer Research in Philadelphia, later renamed, Fox Chase Cancer Center. The letters are professional in content, discussing biochemistry, molecular biology, nuclear magnetic resonance (NMR) experiments. The letters also concern lectures and participation in conferences and symposia, and there are materials relating to recommendations for students and colleagues for positions and promotions. Dr. Cohn's interest and involvement in the issue of women in science is presented, of particular note, her work with the University of Pennsylvania's Gender Equity Committee. The notebooks, by Cohn, her colleagues and students, contain extensive experimental data.

Edward Uhler Condon was a theoretical physicist at Princeton University and Westinghouse Laboratories who later served as director of the National Bureau of Standards (1945-1951), and as the director of research and development (1951-1954) and consulting physicist (1954-1974) at Corning Glass Works. The Condon Papers includes correspondence, notebooks, writings, photographs, and other materials concerning Condon's education, teaching, and his government, industrial, and academic.

The geneticist Milislav Demerec emigrated from Yugloslavia in 1919, spending nearly his entire career in the Department of Genetics at Cold Spring Harbor Laboratory. Working initially on the genetics of maize and later on Drosophila virilis, his research interests included radiation and chemical mutagenesis, and during the Second World War, penicillin and the genetics of antibiotic resistance. Demerec served as head of the laboratory at Cold Spring Harbor from 1941 until 1960. The Demerec collection contains the extant professional papers of Milislav Demerec, dating primarily from the time of his arrival at Cold Spring Harbor until his retirement. In addition to his correspondence with colleagues, the collection includes interesting material on the administration of Cold Spring Harbor laboratory during the 1940s and 1950s, data and research notes, material relating to professional organizations (e.g. Genetics Society of America, American Society of Naturalists), a lengthy series of lectures given by Demerec, and a large number of photographs pertaining to Demerec's research, but also to his colleagues and Cold Spring Harbor itself. There is also a Register of visitors to the laboratory (1927-1945) and a Milislav Demerec reprint list.