Book Details + Condition: Alfred A. Knopf (New York). Second (American) Edition, 1934. Hardcover. Includes fold-out "Table of the Four Forms of the Manifestation of Consciousness". Full title: TERTIUM ORGANUM: THE THIRD CANON OF THOUGHT - A KEY TO THE ENIGMAS OF THE WORLD. A justification of mysticism through science. P.D. Ouspensky presents the world we live in as multi-dimensional, and time as a motion through this world. The physics and mathematics are tightly integrated with mystic teachings. A firm and clean copy, with light wear to boards; bumped spine ends; small owner stamps to endpapers, with a bit of foxing; interior is clean and free of markings.