It was enough, then, that there were two of us; that each one took a hand of the medium and kept hold of it between the thumb and the forefinger, that no possible doubt might arise, drew in the elbows, and held the said hand as far removed as possible from the axis of the medium's body and pressed against our own person, so as to remove the objection about the substitution of hands. That was the essential object of this seance, as far as concerned M. Brisson and me. He had charge of the left hand. I had charge of the right. I need not add that I am as sure of the loyalty of M. Brisson as he is sure of mine, and that, forewarned as we were, and holding this seance for the express purpose of this control, we could neither of us be the dupes of any attempt at fraud, so far as regards that occasion, at least. The famous medium, Home, had several times spoken to me of a curious experiment that he and Crookes made with an accordion held in one of his hands and playing all by itself, without the lower end being held by another hand. Crookes has represented this experiment by a sketch in his memoir upon this subject. The medium is seen holding the accordion with one hand in a kind of open-work cage, and the accordion is playing by itself. I shall give the details of this matter farther on. I tried the experiment in another way, by holding the accordion myself, and not letting it be touched by the medium. The feats which we had just witnessed, and which were performed while Eusapia had her hands securely held, gave me the hope of succeeding, so much the more because we believed that we had seen fluid hands in action. I, therefore, take a little new accordion, bought that evening in a bazaar, and, approaching the table and remaining in a standing position, I hold the accordion by one side, resting two fingers upon two keys, in such a way as to permit the air to pass in case the instrument should begin to play.