Papers of the American Bureau for Medical Aid to China consist of correspondence, memoranda, reports, minutes, committee files, membership records, financial records, fund raising records, motion pictures, audio tapes, phonograph records, photographs, posters, publications of ABMAC and other printed materials. Also included are the files of related Chinese relief organizations: Aid Refugee Chinese Intellectuals, 1954-1969; American Emergency Relief, 1941-1946; United Services to China, 1941-1977. Of particular interest are approximately 6,000 photographs of Chinese medical colleges, hospitals, laboratories and personnel and 45 phonograph records including speeches by such ABMAC supporters as Mme. Chiang Kai-Shek, Pearl S. Buck, Wendell Willkie, Fiorello LaGuardia and a number of movie stars

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.

Materials relating to the American Civil War and the men who fought in it, chiefly of the Union Army.

Dawn Powell (1896-1965) was an American author of novels, plays, and short stories. The collection includes address books, appointment books, books, clippings, correspondence, diaries, ephemera, family materials, manuscripts, notes, notebooks, photographs, programs, research files, reviews, scrapbooks, sketches and drawings.

Autobiography of Baron von Falz-Fein; memoirs of General Nikolai A. Epanchin, Director of the Corps of Pages; one photograph; and several postcards.

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

This collection includes nine letters of Ralph Waldo Emerson as well as letters of Louis Agassiz, Amos Bronson Alcott, Oliver Wendell Holmes, Sr., Henry Wadsworth Longfellow, James Russell Lowell, John Lothrop Motley, Charles Sumner, and John Greenleaf Whittier. In addition, there are two incomplete manuscripts by Emerson and one document from the Liverpool Custom-house signed by Nathaniel Hawthorne as Consul for the United States. The collection also includes the corrected typescript, index, and page and galley proofs for Thomas Franklin Currier, A BIBLIOGRAPHY OF OLIVER WENDELL HOLMES (New York, 1953) which was edited by Professor Tilton. Also, some early correspondence and photographs of the Tilton family and friends. There are letters from the actors Annie Louise Ames, Richard J. Dillon, and Hans L. Meery to Tilton's grandfather, Bernard Paul Verne, as well as photographs, tintypes, and daguerreotypes of the Verne family and friends.

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.

Correspondence, manuscripts, photographs, and printed materials of Sypher, reflecting his interest in A.C. Swinburne and in the Estonian poet, Aleksis Rannit. Correspondents include Joseph Hume, Ted Joans, Aleksis Rannit, Enid Starkie, and Algernon Charles Swinburne. There are additional materials on Africa, the Mina dialect in Togo, and the Sypher and related families of New York State.

Personal and professional correspondence, publications, poetry manuscripts and diaries, and scrapbooks belonging to Prudential Insurance Company statistician, cancer researcher, and eugenicist Frederick Ludwig Hoffman (1865-1946). These items document Hoffman's career, family life, and his extensive travels.