VON FOERSTER (EDITOR), CYBERNETICS - CONFERENCE ON CYBERNETICS, 5 VOLUMES

i. Cybernetics. Circular causal, and feedback mechanisms in biological and social systems. Transactions of the sixth conference March 24-25, 1949, New York. New York: Josiah Macy, Jr. Foundation, 1950. 8vo, contemporary light green cloth, spine gilt, original wrappers bound in, (Princeton University, library label; bought from Morgan, 1988), [T&W V33; Origins of Cyberspace 556]ii. Cybernetics. Circular causal, and feedback mechanisms in biological and social systems. Transactions of the seventh conference March 23-24, 1950, New York. New York: Josiah Macy, Jr. Foundation, 1951. 8vo, original green cloth, spine gilt, dust-jacket, (bought from Horizon, 1998), [T&W V34; Origins of Cyberspace 557], minor browning to dust-jacketiii. Cybernetics. Circular causal, and feedback mechanisms in biological and social systems. Transactions of the eighth conference March 15-16, 1951, New York. New York: Josiah Macy, Jr. Foundation, 1952. 8vo, original green cloth, spine gilt, dust-jacket, (bought from Brainbooks, 1998), [T&W V35; Origins of Cyberspace 558], minor chipping to dust-jacketiv. Cybernetics. Circular causal, and feedback mechanisms in biological and social systems. Transactions of the ninth conference March 20-21, 1952, New York. New York: Josiah Macy, Jr. Foundation, 1953. 8vo, original green cloth, spine gilt, dust-jacket, (bought from Eric Korn, 1993), [T&W V36; Origins of Cyberspace 559], dust-jacket soiled v. Cybernetics. Circular causal, and feedback mechanisms in biological and social systems. Transactions of the tenth conference April 22, 23 and 24, 1953, Princeton, NJ. New York: Josiah Macy, Jr. Foundation, 1955. 8vo, original green cloth, spine gilt, dust-jacket, [T&W V37], dust-jacket with minor chipping

Condition is described in the main body of the catalogue, where appropriate.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
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The Cybernetics conferences were held between 1946 and 1953, organised by the Josiah Macy, Jr. Foundation.