Correspondence, manuscripts, documents, notebooks, memorabilia, a tape cassette, photographs, and printed materials. The collection is primarily correspondence files, both personal and professional, along with book reviews, awards and diplomas, letters of condolence on his death, clippings, and correspondence, manuscripts and printed materials relating to THE STREAM OF HISTORY. The correspondence relates specifically to the third edition. The manuscripts are typed and holograph inserts for the third edition and possibly for the second edition as well. Among the manuscripts are twenty-two notebooks containing holograph notes and drafts of chapters. The printed material consists of one copy of THE STREAM OF HISTORY, 1934 edition.

The V. K. Wellington Koo papers document the diplomatic legacy of Wellington Koo as a Chinese statesman and diplomat of the 20th Century. The papers primarily consist of materials collected during Koo's diplomatic career, relating to the Lytton Commission, 1932-1933; the League of Nations, 1931-1940; the United Nations, 1944-1946; his ambassadorships to France, 1932-1941; to Britain, 1941-1946; to the United States, 1946-1956; as the Senior Advisor to the Republic of China from 1956; and as the Judge on the International Court of Justice, 1957-1966. The materials include correspondence, diaries, memoranda, manuscripts, documents, notes, speeches, maps, photographs, printed material, and audio visual material. The bulk of the materials emphasizes China's domestic and foreign affairs, such as the Sino-Japanese conflict, World War II and the Cold War in the Far East region, as well as the League of Nations and the United Nations.

Correspondence, research notes, articles, clippings, photostats, and photographs. These files concern his interest in Pierre Bayle, Antoine Arlier, and the Renaissance in Provence, as well as the Romanic Review, philology, French, Spanish, and celtic studies. Among the correspondents are: Philippe Berthelot, Nicholas Murray Butler, F.R. Coudert, John H. Finley, the Prince de Ligne, Curtis Hidden Page, William B. Parsons, and Aime ́Puech.

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

Correspondence; manuscripts of books, chapters, addresses, lectures, articles, and other writings; clippings and other printed materials relating to Butler's life and career, and memorabilia, ca. 1900-1947. Also, correspondence, 1891-1946, between Butler and presidents of the United States including William McKinley, Theodore Roosevelt, William Howard Taft, Woodrow Wilson, Warren G. Harding, Calvin Coolidge, Herbert Hoover, Franklin D. Roosevelt, and Harry S. Truman.

Correspondence, manuscripts, notes, documents, book typescripts, photographs, and printed materials covering the time from Dorfman's early interest, as a graduate student, in the economic thought of Thorstein Veblen until his retirement. There is correspondence with his academic colleagues, students, publishers, and the family and students of Thorstein Veblen, as well as manuscripts, typescripts, drafts, revisions, notes, photographs, pamphlets, and related materials for his articles and books which include: THORSTEIN VEBLEN AND HIS AMERICA, 1934; THE ECONOMIC MIND IN AMERICAN CIVILIZATION, 1946-1959; EARLY AMERICAN POLICY, 1960; INSTITUTIONAL ECONOMICS, 1963; TYPES OF ECONOMIC THEORY, 1967; and NEW LIGHT ON VEBLEN, 1973

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.

Professional and personal files including Armstrong's correspondence with professional associations, other engineers, and friends, his research notes, circuit diagrams, lectures, articles, legal papers, and other related materials. Of his many inventions and developments, the most important are: 1) the regenerative or feedback circuit, 1912, the first amplified radio reception, 2) the superheterodyne circuit, 1918, the basis of modern radio and radar, 3) superregeneration, 1922, a very simple, high-power receiver now used in emergency mobile service, and 4) frequency modulation - FM, 1933, static-free radio reception of high fidelity. More than half the files concern his many lawsuits, primarily with Radio Corporation of America, over infringement of the Armstrong patents. Litigation continued until 1967. Other files deal with his work in the Marcellus Hartley Research Laboratory at Columbia University, 1913-1935, and with the American Expeditionary Forces in France during World War I, his Air Force contracts for communications development, Army research during World War II, the Radio Club of America, the Institute of Radio Engineers, FM development at his radio station at Alpine, N.J., the use of FM in television, his involvement in Federal Communications Commission hearings and legislation, and his work with the Zenith Radio Corporation. Also, letters to H.J. Round

Correspondence, manuscripts, notes, clippings, and photographs of or relating to Cardozo, including his lecture notes as a student at Columbia, 1885-1889, and his commonplace books. Also, four boxes of printed and manuscript material collected by George S. Hellman while writing BENJAMIN N. CARDOZO, AMERICAN JUDGE; and photocopies of letters, manuscripts, and notebooks of original Cardozo papers in the Cardozo School of Law Library. Materials re. his estate and will have been added.

Manuscripts of essays and course notes taken while a student at Amherst College, 1884-1889, and at Berlin University, 1892-1894. Articles, addresses, essays, lectures, lecture notes and reading notes. Also included are diaries for the years 1936-1940 and correspondence concerning Amherst College, Columbia University, and Woodbridge's stay as a visiting scholar in Berlin, 1931-1932. Among his correspondents are: Frederick S. Allis, Secretary of the Amherst Board of Trustees; Stanley King, President of Amherst; and Nicholas Murray Butler, President of Columbia. Some photographs are also included.