Northcote Whitridge Thomas

“ In practice no evidence has been obtained pointing to the possession by a discarnate spirit of knowledge not possessed by any living person (see Medium) . As explanation of the few successful experiments in independent clairvoyance we have the choice of three explanations: (1) lucidity; (2) telepathy from living persons; (3) hyperaesthesia. The second possibility was overlooked in Richet’s diagram experiments; it cannot be assumed that a picture put into an envelope and not consciously recalled has been in reality forgotten. ”

“ But no precautions were taken against hyperaesthesia further than enclosing the card in a second envelope. There is a power possessed by a certain number of people, of naming a card drawn by them or held in the hand face downwards, so that there is no normal knowledge of its suit and number. Few thorough trials have been made; but it seems to point to some kind of hyperaesthesia rather than to clairvoyance; in the Richet experiments even if the envelopes excluded hyperaesthesia of touch on the part of the medium, there may have been subliminal knowledge on Prof. ”