About 1891, I had joined the Psychical Research Society and had the advantage of reading all their reports. The world owes a great deal to the unwearied diligence of the Society, and to its sobriety of statement, though I will admit that the latter makes one impatient at times, and one feels that in their desire to avoid sensationalism they discourage the world from knowing and using the splendid work which they are doing. Their semi-scientific terminology also chokes off the ordinary reader, and one might say sometimes after reading their articles what an American trapper in the Rocky Mountains said to me about some University man whom he had been escorting for the season. "He was that clever," he said, "that you could not understand what he said." But in spite of these little peculiarities all of us who have wanted light in the darkness have found it by the methodical, never-tiring work of the Society. Its influence was one of the powers which now helped me to shape my thoughts. There was another, however, which made a deep impression upon me. Up to now I had read all the wonderful experiences of great experimenters, but I had never come across any effort upon their part to build up some system which would cover and contain them all. Now I read that monumental book, Myers' Human Personality, a great root book from which a whole tree of knowledge will grow. In this book Myers was unable to get any formula which covered all the phenomena called "spiritual," but in discussing that action of mind upon mind which he has himself called telepathy he completely proved his point, and he worked it out so thoroughly with so many examples, that, save for those who were wilfully blind to the evidence, it took its place henceforth as a scientific fact. But this was an enormous advance. If mind could act upon mind at a distance, then there were some human powers which were quite different to matter as we had always understood it. The ground was cut from under the feet of the materialist, and my old position had been destroyed. I had said that the flame could not exist when the candle was gone. But here was the flame a long way off the candle, acting upon its own. The analogy was clearly a false analogy. If the mind, the spirit, the intelligence of man could operate at a distance from the body, then it was a thing to that extent separate from the body. Why then should it not exist on its own when the body was destroyed? Not only did impressions come from a distance in the case of those who were just dead, but the same evidence proved that actual appearances of the dead person came with them, showing that the impressions were carried by something which was exactly like the body, and yet acted independently and survived the death of the body. The chain of evidence between the simplest cases of thought-reading at one end, and the actual manifestation of the spirit independently of the body at the other, was one unbroken chain, each