unhoped-for and unprecedented concourse of coincidences. It is simply a matter of distant perception, subliminal clairvoyance and telepathy raised to the highest power; and these three manifestations of the unexplored depths of man are to-day recognized and classified by science, which is not saying that they are explained: that is another question. When, in connection with electricity, we use such terms as positive, negative, induction, potential and resistance, we are also applying conventional words to facts and phenomena of whose inward essence we are utterly ignorant; and we must needs be content with these, pending any better. There is, I insist, between these extraordinary manifestations and those given to us by a medium who is not speaking in the name of the dead, but a difference of the greater and the lesser, a difference of extent or degree and in no wise a difference in kind. 8 For the proof to be more decisive, it would be necessary that no one, neither the medium nor the witnesses, should ever have known of the existence of him whose past is revealed by the dead man, in other words, that every living link should be eliminated. I do not believe that this has actually occurred up to the present, nor even that it is possible; in any case, it would be very difficult to control such an experiment. Be this as it may, Dr. Hodgson, who devoted part of his life to the quest of specific phenomena wherein the boundaries of mediumistic power should be plainly overstepped, believes that he found them in certain cases, of which—as the others were of very much the same nature—I will merely mention one of the most striking.[8] In a course of excellent sittings with Mrs. Piper the medium, he communicated with various dead friends who reminded him of a large number of common memories. The medium, the spirits and he himself seemed in a wonderfully accommodating mood; and the revelations were plentiful, exact and easy. In this extremely favourable atmosphere, he was placed in communication with the soul of one of his best friends, who had died a year before and whom he simply calls “A.” This A, whom he had known more intimately than most of the spirits with whom he had communicated previously, behaved quite differently and, while establishing his identity beyond dispute, vouchsafed only incoherent replies. Now A “had been troubled much, for years before his death, by headaches and occasionally mental exhaustion, though not amounting to positive mental disturbance.” The same phenomenon appears to recur whenever similar troubles have come before death, as in cases of suicide.