Engineering.- Vernam (Gilbert S.) "Cipher Printing Telegraph Systems

Engineering.- Vernam (Gilbert S.) "Cipher Printing Telegraph Systems for Secret Wire and Radio Telegraphic Communications", in Journal of the A.I.E.E., vol. 45, pp.109-115, ex-library copy with ink-stamps, library cloth-backed boards, spine with red morocco label and stain at foot, spine sunned, light rubbing, New York, 1926; and vol. 46, 49, and vol.67 and 75 of Transactions of the A.I.E.E., 4to (5) *** Vernam's foundational text in the history of modern cryptography, where he describes an automatic cipher printing telegraph system developed during the First World War for the Signal Corps of the United States Army. Also in this volume is Edith Clarke's "Steady-State Stability in Transmission Systems". Clarke is the first woman ever to present a technical paper before the A.I.E.E. Across the other volumes include scientific works on the history of telecommunications, signal theory, electrical analog computers, and studies on modern high-voltage power-system engineering.

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