The "Sepher Yetzirah," or "Book of Formation," is perhaps the oldest Rabbinical treatise of Kabalistic philosophy which is still extant, but it is not in any sense a narrative of Creation, or a substitute Genesis, but is an ancient and instructive philosophical treatise upon one aspect of the origin of the universe and mankind; an aspect at once archaic and essentially Hebrew. -- The Collectanea Hermetica is a 10 volume set of Occult Hermetic books edited by William Wynn Westcott. The volumes are as follows: 1) Hermetic Arcanum, 2) The Divine Pymander, 3) A Short Enquiry Concerning the Hermetic Art, 4) Æsch Mezareph, 5) Somnium Scipionis, 6) Chaldæan Oracles of Zoroaster, 7) Euphrates, or the Waters of the East, 8) Egyptian Magic, 9) Numbers, 10) Sepher Yetzirah. -- The volumes include several original translations, commentaries, and copious notes. It is a valuable resource for all students of Hermeticism, Alchemy, Kabalah and western esotericism in general.