Correspondence files of Dr. Adolph S. Oko. The bulk of the correspondence is from Dr. Carl Gebhardt (1881-1934), with a large group also relating to a campaign to raise money for the Domus Spinozana. Present are a number of typescripts of articles and an extensive life of Spinoza. There are a few personal items, but practically all correspondence and manuscripts relate in some measure to Spinoza. Also, nine boxes of clippings relating to Spinoza, a duplicate set of cards for the Spinoza Collection used by G.K. Hall in publishing SPINOZA BIBLIOGRAPHY, the personal cardfiles of Oko and Gebhardt, and one box of Oko bookplates.

The large collection covers all aspects of Cordier's life. It contains letters, memoranda, reports, cables, printed materials and photographs, mostly pertaining to his tenure at the United Nations and Columbia University.

Correspondence, manuscripts, notes, drafts of speeches, appointment books, subject files, documents, photographs, memorabilia and printed materials. There are notes from her lectures on Sociology at Adelphi College in 1911-1912; papers from 1912-1932, when Perkins served on the Commission for Safety and on the Industrial Commission of New York State; the main body of the material is from the period of her cabinet office, 1933-1945; and some items from her days on the Civil Service Commission, 1946-1953. Also included are personal and family papers.

The correspondence, research, and teaching files of French-American cultural historian and Columbia University professor emeritus Jacques Barzun (1907-2012).

Correspondence relating to Erskine's various educational, musical and literary interests; manuscripts of his writings; lecture notes for college courses; souvenirs of his army service in World War I and his Columbia University professorship, and student papers from his own school and college days. Also, biographical file, scrapbooks, and articles.

This collection contains correspondence, manuscripts, documents, notebooks, and photographs of John Jacob Coss, professor of Philosophy.

Correspondence, manuscripts, notes, technical reports, memoranda, questionnaires, interview schedules, personal and professional documents, several photographs, one tape recording, and printed materials. The correspondence files contain letters to colleagues and researchers such as Bernard Berelson, Robert Lynd, Robert Merton, and Frank Stanton. The subject files document Lazarsfeld's many research projects such as the Admissions Officers Project, 1964-1970, the Planning Project for Advanced Training in Social Research, 1950-1955, and his first major endeavor, the Princeton Radio Research Project, 1937-1940. There are complete records for his 1954-1955 study on McCarthyism's effect on college teaching. These original materials consisting of correspondence, interview schedules, and questionnaires contain many detailed comments which could not be included in the published version of this study, THE ACADEMIC MIND (1958). Numerous files relate to Lazarsfeld's position as Associate Director of the Bureau of Applied Social Research (BASR). There are manuscripts of books, research papers, lectures, and articles by Lazarsfeld as well as by his students and colleagues.

Professional and personal papers of the German émigré scholar Paul Oskar Kristeller. Kristeller was a professor of philosophy at Columbia University and a world renowned scholar of Renaissance humanism and Renaissance philosophy who published widely, notably his major catalog of uncataloged manuscripts from the Italian Renaissance, the Iter Italicum.

Three volumes of correspondence, including some letterbook copies; many sermons, individually bound; prayers; and other manuscript materials. Correspondenbce is with many of his well known contemporaries and deals largely with matters pertaining to his church or to King's College. Shelved with the collection are two card file boxes containing an old handwritten calendar with abstracts, 1710-1914, a set of cross reference entries, and a calendar of material not at Columbia, 1715-1785. Additional letters have been added

Correspondence, manuscripts, subject files and research notes of Sigmund Diamond. Included among the correspondence are Diamond's letters to and from various distinguished members of Columbia University and other academic insitutions, as well as correspondence with many noted sociologists and historians. Included in the manuscripts is Diamond's "In Quest." The subject files comprise material from Diamond's tenure at Columbia and include some material pertaining to his forced departure from Harvard in the 1950's due to his previous communist affiliation, and his active role in maintaining the efficacy of the Freedom of Information Act. The research files include microfilms and notes.