After this, however, the operator caused the doctor to do a number of things which he learned of from his friends after the performance was over. “It seemed to me that the hypnotist commanded me to awake as soon as I dropped my arm,” and yet ten minutes of unconsciousness had passed. On a subsequent occasion Dr. Cocke, who was blind, was put into a deep hypnotic sleep by fixing his mind on the number 26 and holding up his hand. This time he experienced a still greater degree of terror, and incidentally learned that he could hypnotize himself. The matter of self-hypnotism we shall consider in another chapter. In this connection we find great interest in an article in the Medical News, July 28, 1894, by Dr. Alfred Warthin, of Ann Arbor, Mich., in which he describes the effects of music upon hypnotic subjects. While in Vienna he took occasion to observe closely the enthusiastic musical devotees as they sat in the audience at the performance of one of Wagner’s operas. He believed they were in a condition of self-induced hypnotism, in which their subjective faculties were so exalted as to supersede their objective perceptions. Music was no longer to them a succession of pleasing sounds, but the embodiment of a drama in which they became so wrapped up that they forgot all about the mechanical and external features of the music and lived completely in a fairy world of dream. This observation suggested to him an interesting series of experiments. His first subject was easily hypnotized, and of an emotional nature. Wagner’s “Ride of Walkure” was played from the piano score. The pulse of the subject became more rapid and at first of higher tension, increasing from a normal rate of 60 beats a minute to 120. Then, as the music progressed, the tension diminished. The respiration increased from 18 to 30 per minute. Great excitement in the subject was evident. His whole body was thrown into motion, his legs were drawn up, his arms tossed into the air, and a profuse sweat appeared. When the subject had been awakened, he said that he did not remember the music as music, but had an impression of intense, excitement, brought on by “riding furiously through the air.” The state of mind brought up before him in the most realistic and vivid manner possible the picture of the ride of Tam O’Shanter, which he had seen years before. The picture soon became real to him, and he found himself taking part in a wild chase, not as witch, devil, or Tam even; but in some way his consciousness was spread through every part of the scene, being of it, and yet playing the part of spectator, as is often the case in dreams. Dr. Warthin tried the same experiment again, this time on a young man who was not so emotional, and was hypnotized with much more difficulty. This subject did not pass into such a deep state of hypnotism, but the result was practically the same. The pulse rate rose from 70 to 120. The sensation remembered was that of riding furiously through the air.