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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

A large collection of original comic and illustration art; a considerable number of articles of clothing; tapes and CDs; documents; photographs; ephemera.

The records include annual reports, board minutes, budgets, by-laws, correspondence, memos, publications, reports, scrapbooks, photographs and printed material. They document the settlement and its antecedent institutions from 1854 to 1994, offering a unique view of the first wave of the settlement house movement in America, as well as related philanthropy and social welfare activities in New York City over a 140 year period. The origins of Goddard-Riverside Community Center are documented in Series I, which includes eight institutional subseries. These records provide a wealth of information on philanthropic, social welfare and settlement work from the mid-19th century through the 1950s. Series II - IV document the activities of the settlement from 1959 to the 1990s, with a particular emphasis on the urban renewal period of the 1960s. Items in Series VII include photographs of staff, activities, facilities of Goddard-Riverside Community Center, as well as several of its predecessor institutions.

Correspondence; minutes; reports; surveys of conferences and Home Missions congresses and the American Indian, Indian tribes, reservations, and agencies; maps; photographs; and slides.

Papers of Carman spanning his entire career beginning with his student days at Syracuse and Columbia Universities. His Columbia files include professional correspondence, lecture notes, course-related materia, and a bibliographical card index of American and European history. Dean Carman's abiding interest both in the academic and general communities is reflected in numerous special files which include correspondence to him as book review editor of HISTORICAL OUTLOOK, 1925-1929, as participant in Columbia's AMERICAN CULTURE SERIES, ca. 1935-1942, and STUDIES IN THE HISTORY OF AMERICAN AGRICULTURE, ca. 1935-1945. There are numerous files relating to his membership on the New York City Board of Higher Education, 1938-1964, the New York State Board of Mediation, 1941-1955, and the Japan American Committee on Intellectual Exchange. The many folders on American colleges attest to the Dean's concern for the quality and improvement of undergraduate education in the United States. Included are some of the working papers for PREPARATION FOR MEDICAL EDUCATION IN THE LIBERAL ARTS (published 1953), and THE RESURVEY OF PREPROFESSIONAL EDUCATION IN THE LIBERAL ARTS COLLEGE (published 1961). Among the few and incomplete book manuscripts there is a typescript of LINCOLN AND PATRONAGE (published 1943) with handwritten addition and correction.

Correspondence, manuscripts, typescripts, research files, documents, printed materials, photographs, and memorabilia of Mr and Mrs Hough. Correspondence includes both personal and business letters, dealing with wildlife conservation, civic interests, and birding. There is some correspondence of George A. Hough, Sr., father of H.B. Hough, who was editor of the New Bedford MA Standard. Most of the correspondence is arranged alphabetically, by personal name or subject, out-going and in-coming filed together. Henry and Elizabeth Hough's correspondence, for which there are no in-coming or related letters, are filed chronologically. Cataloged correspondents include Calvin Coolidge, Max Eastman, Helen Keller, John F. Kennedy, Emily Post, and James Reston.