But there have been phenomena obtained as the result of long series of careful experiments which are, in a way, even more wonderful than these somewhat less deliberate experiments just mentioned. I allude to the experiments of a number of earnest, careful scientific students, who surrounded themselves with every precaution against over-enthusiasm, fraud, and coincidence. Prominent among this class of investigations we find those conducted by the Society for Psychical Research, of England, which really established a firm basis for the work of other investigators who followed the general methods of the said society. In the following chapter, I shall give you a somewhat extended statement of the results of such investigations, because this information is important to every student of psychic phenomena, not only because it establishes a firm scientific basis for his studies and beliefs, but also because it gives him important information which he may apply in the course of his own experimental work. I may mention that the investigations into the subject of telepathy, and kindred subjects, under the auspices of the society just mentioned, were conducted by men of careful scientific training and experience, and under the general supervision and approval of the officers of the society, among which have been numbered such eminent men as Prof. Henry Sidgwick, of Cambridge University; Prof. Balfour Stewart, a Fellow of the Royal Society of England; Rt. Hon. A.J. Balfour, the eminent English statesman; Prof. William James, the eminent American psychologist; Sir William Crookes, the great chemist and discoverer of physical laws, 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 explorer of the astral planes, and writer upon psychic phenomena; Sir Oliver Lodge, the popular English scientist; and other men of international reputation and high standing. The character of these men at once gives the stamp of honesty and scientific accuracy to all the work of the society. In order that you may understand the spirit which animated these scientific investigators in their work of the exploration of this new and strange region of Nature, I ask you to carefully read the following words of the presidential address of Sir William Crookes, before the Royal Society, at Bristol, England, in 1898. Remember, please, that this address was made before an assemblage of distinguished scientists, many of them rank materialists and, quite skeptical of all occult phenomena--this was nearly twenty years ago, remember. Sir William Crookes, facing this gathering, as its president, said: