Originally published in 1899, this account of recent investigations regarding hypnotism, automatism, dreams, phantasms, and related phenomena is accurate enough for scientists and simple enough for lovers of "ghost stories." On a thread of theory and discussion Dr. Mason links many startling examples from his own professional experience and from The Proceedings of the Society for Psychical Research. He includes a copy of a portrait made while in a trance by a person who had never painted before. R. Osgood Mason, M.D., was a Fellow of the New York Academy of Medicine. Boston Transcript: "He...