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These are manuscripts and typescript documents of 34 different princely states that existed as distinct political entities in pre-independence India. Although the majority of these states were tiny principalities in western India (primarily in what is now Rajasthan), some (e.g., Hyderabad) were located in other regions of India and represented major powers in the region at that time.

Correspondence, manuscripts, documents, notes, printed material, and photographs of Leonard Altman concerning his work as editor of LISTEN and board member of Carnegie Hall as well as his other professional and personal interests.

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 with many well known authors and scientists, correspondence with publishers, contracts, and other materials dealing with the many series of books which she has organized. Dr Anshen has edited over one hundred works in fields ranging from physics and biology to philosophy, education, psychology, and esthetics. Her series - WORLD PERSPECTIVES (Harper), RELIGIOUS PERSPECTIVES (Harper), CREDO PERSPECTIVES (Pocket Books/Simon & Schuster), THE SCIENCE OF CULTURE SERIES (Harcourt, Brace), PERSPECTIVES IN HUMANISM (World Pub. Co.), and THE TREE OF LIFE SERIES - have been concerned with new trends in scientific thought and the mutual intelligibility of the various arts and sciences. A new series, CONVERGENCE (Columbia University Press), was started in 1981 dealing with ideas that changed, or that are changing the world. Books from the various series are also included. There is also personal material of Dr Anshen and her family.

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 consists of digital files only. The digital files are available on the Columbia University Digital Library Collections (DLC), as well as on the web.