The Secret Doctrine, Volume I. Cosmogenesis H. P. Blavatsky - The authorthe writer, ratherfeels it necessary to apologize for the long delay which has occurred in the appearance of this work. It has been occasioned by ill-health and the magnitude of the undertaking. Even the two volumes now issued do not complete the scheme, nor do these treat exhaustively of the subjects dealt with in them. A large quantity of material has already been prepared, dealing with the history of Occultism as contained in the lives of the great Adepts of the Âryan Race, and showing the bearing of Occult Philosophy upon the conduct of life, as it is and as it ought to be. Should the present volumes meet with a favourable reception, no effort will be spared to carry out the scheme of the work in its entirety.This scheme, it must be added, was not in contemplation when the preparation of the work was first announced. As originally announced, it was intended that The Secret Doctrine should be an amended and enlarged version of Isis Unveiled. It was, however, soon found that the explanations which could be added to those already put before the world, in the last-named and other works dealing with Esoteric Science, were such as to require a different method of treatment; and consequently the present volumes do not contain, in all, twenty pages extracted from Isis Unveiled.