A collection of discussions by various authors. Principle contents: alchemy; astrology; black magic; Buddhist occultism; Chinese occultism; devil worship; English literature and the occult; fairies; ghosts; history of occult ideas; illusion and hallucination; Indian occultism; literature of occultism; Moslem occultism; occultism in ancient Greece and Rome; psychotherapy and psychic phenomena; spiritualism; vampire; werewolf; white magic; witchcraft.