Tertium Organum: A Key to the Enigmas of the World by P. D. Ouspensky (1934) hardcover book

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P. D. Ouspensky and Translated from the Russian by Nicholas Bessaraboff and Claude Bragdon with an Introduction by Claude Bragdon - Tertium Organum: The Third Canon of Thought - A Key to the Enigmas of the World

New York: Alfred A. Knopf. Twelfth printing, July 1934 (first published in 1920 by Manas Press). Second American Edition, Authorized and Revised. Hardcover. 8vo. Black boards. No dust jacket. Publisher's top-stain. Bookstore bookplate affixed to the gutter of the rear paste-down (see photos). Fold-out chart at rear of text. Dog-eared pages. Fair condition. Minor separation of the text-block from the spine. Creasing, toning, scratching, smudging, and discoloration to the outer/inner boards, end-papers, pages of the text, and the text-block edge.

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