If self-hypnotism is possible (and it is true that a person can deliberately hypnotize himself when he wishes to till he has become accustomed to it and is expert in it, so to speak), it does away at a stroke with the claims of all professional hypnotists and magnetic healers that they have any peculiar power in themselves which they exert over their fellows. One of these professionals gives an account in his book of what he calls “The Wonderful Lock Method.” He says that though he is locked up in a separate room he can make the psychic power work through the walls. All that he does is to put his subjects in the way of hypnotizing themselves. He shows his inconsistency when he states that under certain circumstances the hypnotizer is in danger of becoming hypnotized himself. In this he makes no claim that the subject is using any psychic power; but, of course, if the hypnotizer looks steadily into the eyes of his subject, and the subject looks into his eyes, the steady gaze on a bright object will produce hypnotism in one quite as readily as in the other. Hypnotism is an established scientific fact; but the claim that the hypnotizer has any mysterious psychic power is the invariable mark of the charlatan. Probably no scientific phenomenon was ever so grossly prostituted to base ends as that of hypnotism. Later we shall see some of the outrageous forms this charlatanism assumes, and how it extends to the professional subjects as well as to the professional operators, till those subjects even impose upon scientific men who ought to be proof against such deception. Moreover, the possibility of self-hypnotization, carefully concealed and called by another name, opens another great field of humbug and charlatanism, of which the advertising columns of the newspapers are constantly filled—namely, that of the clairvoyant and medium. We may conceive how such a profession might become perfectly legitimate and highly useful; but at present it seems as if any person who went into it, however honest he might be at the start, soon began to deceive himself as well as others, until he lost his power entirely to distinguish between fact and imagination. Before discussing the matter further, let us quote Dr. Cocke’s experiment in hypnotizing himself. It will be remembered that a professional hypnotizer or magnetizer had hypnotized him by telling him to fix his mind on the number twenty-six and holding up his hand. Says the doctor: