2013 Reprint of 1922 Edition. Exact facsimile of the original edition, not reproduced with Optical Recognition Software. In 1920 'Tertium Organum' was published in the USA; Claude Bragdon one of the people responsible for translating and publishing the English edition stated at the time; ’In naming his book 'Tertium Organum' Ouspensky reveals at a stroke that astounding audacity which characterizes his thought throughout... Such a title says, in effect: 'Here is a book which will reorganize all knowledge. The 'Organon' of Aristotle formulated the laws under which the subject thinks; the 'Novum Organum' of Bacon, the laws under which the object may be known; but the Third Canon of Thought existed before these two, and ignorance of its laws does not justify their violation. 'Tertium Organum' shall guide and govern human thought henceforth.'’