THIS volume is a useful handbook for those psychical researchers who want to have by them a well-documented and fairly critical account of the attempts that have been made to bring so-called supernormal phenomena into the laboratory and to subject them to tests made by instruments of precision.
Laboratory Investigations into Psychic Phenomena
By Hereward Carrington. Pp. 255 + 25 plates. (London: Hider & Co., n.d.) 15s. net.