One of the greatest and perhaps the most serious objection to the correctness and reliability of the whole work will be the preliminary Stanzas. How can the statements contained in them be verified? True, though a great portion of the Sanskrit, Chinese, and Mongolian works quoted in the present volumes is known to some Orientalists, yet the chief work—that one from which the Stanzas are given—is not in the possession of European Libraries. THE BOOK OF DZYAN (or DZAN) is utterly unknown to our Philologists, or at any rate was never heard of by them under its present name. This is, of course, a great drawback to those who follow the methods of research prescribed by official Science; but to students of Occultism, and to every genuine Occultist, this will be of little moment. The main body of the doctrines given, however, is found scattered throughout hundreds and thousands of Sanskrit MSS., some already translated—disfigured in their interpretations, as usual—others still waiting their turn. Every scholar, therefore, has an opportunity of verifying the statements herein made, and of checking most of the quotations. A few new facts, _new_ to the profane Orientalist only, and passages quoted from the Commentaries will be found difficult to trace. Several of the teachings also have hitherto been transmitted orally, yet even these in every instance are hinted at in the almost countless volumes of Brâhmanical, Chinese and Tibetan temple‐literature. However it may be, and whatsoever is in store for the writer through malevolent criticism, one fact is quite certain. The members of several esoteric schools—the seat of which is beyond the Himâlayas, and whose ramifications may be found in China, Japan, India, Tibet, and even in Syria, and also South America—claim to have in their possession the _sum total_ of sacred and philosophical works in MSS. and print, all the works, in fact, that have ever been written, in whatever language or character, since the art of writing began, from the ideographic hieroglyphs down to the alphabet of Cadmus and the Devanâgari. It has been constantly claimed that, ever since the destruction of the Alexandrian Library,(5) every work of a character that might lead the profane to the ultimate discovery and comprehension of some of the mysteries of the Secret Science, owing to the combined efforts of the members of these Brotherhoods, has been diligently searched for. It is added, moreover, by those who know, that once found all such works were destroyed, save three copies of each which were preserved and safely stored away. In India, the last of these precious manuscripts were secured and hidden during the reign of the Emperor Akbar.