“Like most perplexing things when made clear, it is astonishing how easily it is done. The rappings are simply the result of a perfect control of the muscles of the leg below the knee, which govern the tendons of the foot and allow action of the toe and ankle bones that is not commonly known. Such perfect control is only possible when a child is taken at an early age and carefully and continually taught to practice the muscles, which grow stiff in later years. A child at twelve is almost too old. With control of the muscles of the foot, the toes may be brought down to the floor without any movement that is perceptible to the eye. The whole foot, in fact, can be made to give rappings by the use only of the muscles below the knee. This, then, is the simple explanation of the whole method of the knocks and raps. “In Rochester Mrs. Underhill gave exhibitions. We had crowds coming to see us and she made as much as a hundred to a hundred and fifty dollars a night. She pocketed this. Parties came in from all parts to see us. Many as soon as they heard a little rap were convinced. To all questions we answered by raps. We knew when to rap ‘yes’ or ‘no’ according to certain signs which Mrs. Underhill gave us during the seance. “A great many people when they hear the rapping imagine at once that the spirits are touching them. It is a very common delusion. Some very wealthy people came to see me some years ago when I lived in Forty-second Street and I did some rappings for them. I made the spirit rap on the chair and one of the ladies cried out: “‘I feel the spirit tapping me on the shoulder.’ “Of course that was pure imagination. “Katie and I were led around like lambs. We went to New York from Rochester and then all over the United States. We drew immense crowds. I remember particularly Cincinnati. We stopped at the Burnett House. The rooms were jammed from morning till night and we were called upon by those old wretches to show our rappings when we should have been out at play in the fresh air. “Nobody has ever suspected anything from the start in 1848 until the present day as to any trickery in our methods. There has never been a detection.[7] But as the world grew wise and science began to investigate we began to adapt our experiments to our audiences. Our seances were held in a room. There was a centre-table in the middle and we all stood around it. “As far as _Spirits_ were concerned neither my sister nor I thought about it. I know that there is no such thing as the departed returning to this life. Many people have said to me that such a thing was possible and seemed to believe so firmly in it that I tried to see, and I have tried in every form and know that it cannot be done.