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Correspondence and papers of Low. Both sides of the correspondence are almost intact from 1890 on, with copies of outgoing letters for the two previous decades. There are also four letterpress copybooks, numerous scrapbooks of clippings relating to Low's career and activities, a large number of photographs and other memorabilia, and printed and manuscript copies of many of Low's speeches. Also, contains ten boxes of Annie Low's (Mrs. Seth Low) business and financial correspondence, invitations and regrets, requests for donations, and bills for the period 1914 to 1930.

The Clark Hoyt collection is organized around the columns he wrote as public editor, with each being accompanied by related materials including notes, Q and A emails with Times staffers; emails from readers, which often served as the trigger for the column in question; emails with expert sources, and printed copies of Times articles that prompted the public editor's inquiries.

The collection consists of the professional papers of Koji Nakanishi. The files contain correspondence with collaborators, graduate students, and others in the scientific community; files related to patents owned by Nakanishi; and subject files highlighting Nakanishi's scholarly interests and scientific pursuits throughout his career.

Correspondence, memoranada, agreements, notes, contracts, posters, clippings, financial files covering the entire career of the Maysles brothers.

Letters, documents, clippings, and printed matter related to the work of the Citizens Union of New York, including correspondence, memoranda, and reports which survey, analyze, and criticize bills introduced in the state legislature and city council; 244 boxes of "Who's Who" biographies of candidates for city and state offices; files of campaign and election materials; records of affiliated "good government" organizations in New York City; and extensive financial records.

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