William Wynn Westcott - Numbers Their Occult Power and Mystic Virtues
William Wynn Westcott - An Introduction To The Study Of The Kabalah
Joseph John William - VooDoos And Obeahs Phases of West India Witchcraft
Allen Putnam - Spirit Works Real But Not Miraculous
William Frederick Poole - Cotton Mather and Salem Witchcraft
Howard Phillips Lovecraft - The Quest of Iranon