Contents: Introduction - the science of today and of the future; Psychology in the light of psychic phenomena (oriental psychology, occidental psychology, the mind-body problem, sensation, hallucinations, crystal gazing, speaking with tongues, etc.); Some sittings with Mrs. Piper (seances, notes, correspondence, discussion); On the mechanism of the acquisition of supernormal knowledge; Appendix - some problems of philosophy, in the light of psychical research.