makes in criticising this very incident in the book of essays called _Immortality_, by Canon Streeter and others. She suggests that on the occasion of Miss North's visit my mind had photographed the contents of hers, without my knowing it, and that the medium developed the photograph and read off the required information. It may be so, but it seems to me far-fetched. Miss Dougall, I may add, is a member of the S.P.R., and her criticism is instructed criticism, worthy of careful attention. But I cannot accept her theory, which seems to me more wonderful and to require more credulity than the spirit theory. For it is to be observed that the assumed mind-reading is of a character quite different from anything that has been experimentally established. In telepathic experiments, like those of Professor Murray, some incarnate person is _trying_ to communicate the thought. This is not the case in my sittings with Wilkinson. I am not trying to communicate anything to him; very much the contrary. And I do not find, after long and careful observation, any parallelism between what he says and what I happen to be thinking about. There is, in short, no evidence for the supposition that my mind is read. The evidence points unmistakably to discarnate agency--telepathy _from the dead_. TRANCE The sort of thing I have described is usually known as normal clairvoyance, because the sensitive is in a normal state, not in trance. But there is a further stage, into which, indeed, Mr Wilkinson sometimes passes, in which there is a change of personality, and a spirit purports to speak or write with the medium's organs. There is nothing weird or uncanny in the procedure, nothing deathly or coma-like; the medium usually sits up and even walks about, though some trance mediums have to sit still and keep their eyes closed. I have had visits from many trance mediums; and most of them have failed to get anything evidential--which at least suggests their honesty, for they could easily have obtained _some_ information about my deceased relatives. But the whole matter of trance control is a thorny problem. Indubitably, evidence of supernormal faculty is sometimes given in this state, but we of the S.P.R. are divided as to what the control really is. Some think it is a spirit, as claimed; others think it is a secondary personality of the medium, as in the remarkable case of split personality described in Dr Morton Prince's book _The Dissociation of a Personality_. Mrs Sidgwick, widow of the Professor and sister of Mr A. J. Balfour, has made a careful psychological study of the case of Mrs Piper, given in 657 pages of _Proceedings_, vol. 28, and her conclusion is that though telepathy from the dead is probably shown, and certainly some kind of supernormality, the controls themselves are dream-fragments of the medium's mind. I am not qualified to pronounce an opinion on Mrs Piper, not having met her; but as to the trance mediums I have experimented with, I incline to