As it was concerned simply with the philosophies within historical times and the respective symbolism of the fallen nations, only a hurried glance could be thrown at the panorama of Occultism in the two volumes of _Isis_. In the present work, detailed cosmogony and the evolution of the four Races that preceded our fifth‐race Humanity are given, and now two large volumes explain that which was stated only on the first page of _Isis Unveiled_ alone, and in a few allusions scattered hither and thither throughout that work. Nor can the vast catalogue of the Archaic Sciences be attempted in the present volumes, before we have disposed of such tremendous problems as cosmic and planetary Evolution, and the gradual development of the mysterious humanities and races that preceded our Adamic Humanity. Therefore, the present attempt to elucidate some mysteries of the Esoteric Philosophy has, in truth, nothing to do with the earlier work. The writer must be allowed to illustrate what is said by an instance. Volume I of _Isis_ begins with a reference to an “old book”: So very old that our modern antiquarians might ponder over its pages an indefinite time, and still not quite agree as to the nature of the fabric upon which it is written. It is the only original copy now in existence. The most ancient Hebrew document on occult learning—the _Siprah Dzeniouta_—was compiled from it, and that at a time when the former was already considered in the light of a literary relic. One of its illustrations represents the Divine Essence emanating from ADAM(25) like a luminous arc proceeding to form a circle; and then, having attained the highest point of its circumference, the ineffable Glory bends back again, and returns to earth, bringing a higher type of humanity in its vortex. As it approaches nearer and nearer to our planet, the Emanation becomes more and more shadowy, until upon touching the ground it is as black as night.