In the early days of psychical research hypnosis was used a great deal more than now to bring about ‘traveling clairvoyance,’ but it can still be used. All that is required is skilled hypnotist with some understanding of the state into which he wants to put the subject, and a willing subject. The subject must be put into a fairly deep hypnotic state and then the hypnotist can suggest to him that he leaves his body. The subject can be asked to lift up out of his body, to create a double and step into it, to roll off his bed or chair, or leave through the top of his head. He can then be asked to travel to any place desired, but hypnotist must be sure to specify very clearly where he is to go, and to bring him safely back to his body when expedition is over. If this is not done the subject may have difficulty reorientating himself afterwards.