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) AEsch Mezareph, 5) Somnium Scipionis, 6) Chaldaean 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.
William Wynn Westcott—who usually published as W. Wynn Westcott or W.W. Westcott and occasionally under the motto Sapere Aude—was a coroner, Theosophist, and Freemason who was a leader in the Societas Rosicruciana in Anglia and went on to co-found the Hermetic Order of the Golden Dawn, later remaining involved with the breakaway group Stella Matutina.