For many years experiments of the kind here recorded have been in progress, but the path has always been blocked by fraud and innumerable difficulties. Dr. Ochorowicz did, however, apparently succeed in obtaining photographs of human radiations, of thoughts, and even of materialized hands! What are they? Are they the hands of "spirits," inhabitants of the "Great Beyond"? Are they astrals or elementals? Are they projections from the body of the medium? Of what can they consist? Who directs and guides them? And how can a thought be photographed? These newer researches into the fields of science have been undertaken, for the most part, by French investigators, who have progressed very far in their demonstrations and speculations in this direction--much further, it may be said, than either the English or American investigators have advanced--assuming, of course, the accuracy of their conclusions! Dr. Ochorowicz had been known for thirty years to all researchers as a careful investigator. Professor Charles Richet of the University of Paris spoke of him in the highest terms, and regarded him as "an exceptionally careful and cautious investigator." His book, _Mental Suggestion_, which was published early in the eighties, is considered an authority, and his general erudition and scientific attainments no one could question. For many years he was professor in the University of Lemberg. Several years ago a young girl, Mlle. Stanislaw Tomczyk, then about eighteen years old, was sent to Dr. Ochorowicz for medical treatment. She suffered greatly from nervousness. In order to bring about relief Dr. Ochorowicz hypnotized her, inducing somnambulism; and in this state she displayed, quite spontaneously, a number of "mediumistic" phenomena. This proved to be the beginning of her mediumship. She possessed a power unknown to herself; and it probably would have remained for ever unknown had she not fallen into the hands of a man such as Dr. Ochorowicz. By the average physician she would, most probably, have been treated as hysterical or insane; but careful analysis and training caused her to become, instead, one of the most remarkable psychics the world has ever known. Her early trials and tests were simple enough. A glass clock, possessing a pointer, was hung up in the centre of the room, and Mlle. Tomczyk was told to will that the pointer, when set revolving, should stop at a certain number. Generally she pointed with her finger at the indicator, keeping her hand a few centimetres distant. The indicator generally, though not invariably, stopped at the number desired--at any rate, a far greater number of times than Dr. Ochorowicz or any other person could cause it to stop when trying the experiments themselves. The clock belonged to Dr. Ochorowicz, and was innocent of trickery.