THE CLASSIC STUDY OF ESP AND GHOSTLY APPEARANCESWhat are ghostly apparitions?In this classic of psychical research, George N. M. Tyrrell submits that "e;ghosts"e; are subjective and telepathic, created in the regions of the personality outside the field of normal consciousness. Basing his theories on a vast collection of psychical data, and substantiating his arguments with more than sixty dramatic, well-documented case histories, he establishes a clear relationship between the phenomena of sensory hallucinations and modern psychology.His is a logical, impartial exploration of a subject long obscured by fear and too often dismissed as belonging to the realm of the "e;supernatural."e; As past president of England's famed Society of Psychical Research, Mr. Tyrrell demonstrates with authority that the scientific investigation of apparitions can make a significant contribution to our understanding of the human mind and personality."e;Recommended to the scientific student of extra-sensory perception."e;-Waldo Frank"e;Likely to be regarded as a classic of its kind...an admirable survey of the whole subject."e;-The Times (London) Literary Supplement