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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.

The letters and documents in this collection relate to the Campbell family and the allied Foss and Moody families of Deer Island, Maine. There are 55 autograph letters exchanged between members of the family, dealing with personal affairs, travel, contemporary events, etc. and falling within the years 1817 to 1865. There are about twenty documents including deeds, wills, and bank checks.

Correspondence, documents, and financial records relating almost entirely to the last ten years of Cora Crane's life, dealing largely with the operation of her brothel, The Court, and touching on her last marriage to Hammond P. McNeil and to her work on the invention of a new army canteen. Much of the collection consists of bills, receipts, insurance policies, cancelled checks, and other fairly routine financial papers. Also, a Harold Frederic manuscript and the last known signature of Stephen Crane.

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

Last will of Kiseleva, with an appended affidavit by her priest.