broad daylight and verified the phenomenon _visu et tactu_.” “I do not say,” remarked this same great scientist on another occasion, “that these things are possible――I only say they happened.” Telekinesis (the movement of material objects without personal contact) in full light has been attested by men of unimpeachable honesty and acknowledged ability――like Professors William James, Lombroso, Schiaparelli, and Richet. Mr Dingwall quotes two axioms of the professional conjurer――_Never tell your audience beforehand what you are going to do_, and _Never perform the same trick twice on the same evening_. But Mdlle Tomczyk of Warsaw repeated the same form of telekinesis more or less continuously for six years. Is it conceivable that throughout that period various groups of educated and experienced investigators should have utterly failed to detect the use, say, of threads or filaments however fine? It is childish and unscientific to ignore sound testimony and regard every account which comes to hand of supernormal physical phenomena as little else than the tale of an idiot signifying nothing. There is indeed ample work in this dark and dubious region for those who have time, patience, and opportunity for the investigation of the rare cases of well attested physical mediumship. In view, however, of the more immediate results of real value which may be secured from a study of the subjective phenomena of psychical research it is obvious that, unless a physical medium is willing sooner or later to submit himself frankly and honestly to every reasonable test proposed by the best scientific minds, it is comparatively useless for a researcher to spend his limited time in inconclusive sittings for the alleged marvels of telekinesis or materialization. * * * * * We have sketched the main lines upon which the psychic student of to-day is working, and the question which remains is simply _Cui bono_? What is the practical, or even the theoretical value of our research? Several adequate replies may, I think, be given. The results secured by psychic research in Great Britain and various other countries possess, first of all, a real historical value. The attested phenomena of telepathy, clairvoyance, and physical mediumship throw a clear light upon many dark corners of the past. The Sibylline and other oracles uttered by the entranced priestesses of old, and many of the features of medieval magic, have their unmistakable counterparts in the experiences of modern mediumship. The appalling records of the most devilish machinery ever devised for the torture of mankind, the witchcraft persecutions (not of the Dark Ages but of the Renaissance), possess an added horror when one realizes that the offences alleged against the nine million persons burnt to death in two centuries were to a large extent the outcome of psychic forces and conditions whose character was totally unknown to either the victims or their tormentors.