In those hypnotic experiments in which the operator merely makes the subject do some external act, we get no further than the fact that the person's individual will has been temporarily put to sleep, and that of the hypnotist has taken its place; still even this shows a power of impressing upon the subliminal consciousness a personal quality of its own, but it does not enable it to exhibit its own powers. The object of such experiments is, to exhibit the powers of the hypnotist, not to investigate the powers of the subliminal personality, which is of more importance in the present connection. But where the hypnotist employs his power of command to tell the subliminal self of the patient to exercise its own powers, merely directing it as to the subject upon which it is to be exercised, very wonderful powers indeed are exhibited. Places unknown to the percipient are accurately described; correct accounts are given of what people are doing elsewhere; the contents of sealed letters are read; the symptoms of disease are diagnosed and suitable remedies sometimes prescribed; and so on. Distance appears to make no difference. In many cases time also does not count, and historical events of long ago, with the details of which the seer had no acquaintance, are accurately described in all their minutiae, which have afterwards been corroborated by contemporary documents. Nor are cases wanting in which events still future have been correctly predicted, as, for example, in Cazotte's celebrated prediction of the French Revolution, and of the fate that awaited each member of a large dinner-party when it should occur--though this was a spontaneous case, and not under hypnotism, which perhaps gives it the greater value. The same powers are shown in spontaneous cases also, of which my own experiences related in a previous chapter may serve as a small example; but as there are many books exclusively devoted to the subject I need not go into further details here. If the reader be curious for further information, I would recommend him to read Gregory's "Letters on Animal Magnetism." It was published some fifty years ago, and, for all I know, may be out of print, but if the reader can procure it, he will find that it is a book to be relied upon, the work of a Professor of Chemistry in the University of Edinburgh, who investigated the matter calmly with a thoroughly trained scientific mind. But what I want the reader to lay hold of is the fact, that whether the action occur spontaneously or be induced by experimental means, these powers actually exist in us, and therefore in reckoning up the faculties at our disposal they must not be omitted.