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Audiocassettes of oral history interviews conducted with Diana Trilling.

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, documents, musical scores, audio tape, cassettes, and related printed materials concerning Hispanic culture, immigration problems, parish conflicts, intercultural confrontation, and linguistic discrimination. Included are correspondence with the members, by-laws, minutes of meetings, membership lists, and records of all the organizations activities. Of particular interest are the files of the Cultura Popular Hispana-Gala de la Hispanidad, October 20, 1984, which included a competition for original manuscripts and musical scores for both religious and secular poetry.

Correspondence, manuscripts, audio cassettes, photographs, and printed materials. The correspondence covers the years 1934 through 1999 and consists mostly of letters to and from James L. Weil, whose Elizabeth Press was Bronk's publisher from 1969 to 1981, from Eugene Canadé, an artist who illustrated many of Bronk's books, from Bronk's sisters, and from many friends. There are also letters from W.H. Auden; Paul Auster, Cid Corman (Bronk's first publisher and founder of ORIGIN, the magazine in which many of Bronk's early poems first appeared), Robert Creeley, Samuel French Morse, Gilbert Sorrentino, and many other well-known authors. The manuscripts include notebooks and binders containing handwritten and typed drafts of poems and essays. They document nearly all of Bronk's published writings including the collection of essays he completed in the 1940s which was published in 1980 as THE BROTHER IN ELYSIUM as well as the collection of poems published in 1981 as LIFE SUPPORTS: NEW AND COLLECTED POEMS for which Bronk won the American Books Award in 1982. There are also page proofs, photographs of Bronk, many audio cassettes of Bronk reading his work in the 1970s and the 1980s and printed materials

Burns' American Diary, an Englishman's view of American society, is the fruit of his Laura Spellman Rockefeller fellowship, 1926-1928. Very descriptive of his tour of U.S. and Canada (Quebec, Vancouver), numerous illustrations and clippings are laid in. In addition to his economic and social concerns, of particular interest are the architecture of major cities, their theatrical life, their politics; his visits to certain universities (Harvard, University of Chicago, Stanford), and his long visit to Washington with other Rockefeller fellows and their ongoing meetings and discussions with members of the Federal Board of Trade and professors from all over at what was to become the Brookings Institute. Competition in business was his major interest; it is discussed in the Diary, and his 1936 book, The Decline of Competition, is said to be a major influence in undergraduate teaching in the U.S. Included in the Collection is a cassette of his memorial service at Columbia, 24 April 1981.