Telepathic Phenomena
The second general class of phenomena in the general category of Voluntary Transmission of Mental Vibrations is that known as "Telepathic Phenomena." In a sense, of course, all phases of Thought Transmission, and particularly that of Voluntary Thought Transmission, may be considered as forms of Telepathy; but for the purpose of classification and distinction we have in this book classed as Telepathic Phenomena merely those forms and phases of Thought Transference in which there is an agreement between the telepathic sender and the telepathic receiver, and in which the experiments are conducted more or less along the lines of scientific investigation.
Scientific Investigators
Scientific observers, for a number of years past, have been conducting careful series of experiments in Telepathy, and many volumes of the reports of such investigations have been published by various psychic research societies. Among the eminent scientists who have devoted much attention to this subject are the following: Professor Henry Sidgewick, of Cambridge University; Professor Balfour Stewart, of the Royal Society of England; Rt. Hon. A. J. Balfour, the eminent English statesman and scientist; Professor William James, the eminent American psychologist; Sir William Crookes, the great English chemist, physicist, who invented the celebrated "Crookes' Tubes," without which the discovery of the X-Rays, Radio Activity, etc., would have been impossible; Frederick W. H. Myers, the celebrated investigator of Psychic Phenomena; and Sir Oliver Lodge, the eminent English scientist. All these men are of the highest international standing and reputation, and their acceptance of the phenomena of Telepathy places the same on a firm scientific basis.