So held, it is vertically suspended by the stretching out of my right hand to the height of my head, and above the head of the medium. We make sure that her hands are all the time tightly held and that the chain is unbroken. After a short wait of five or six seconds I feel the accordion drawn by its free end, and the bellows is immediately pushed in several times successively; and at the same time the music is heard. There is not the least doubt that a hand, a pair of pincers, or what-not, has hold of the lower end of the instrument. I perceive very well the resistance of this prehensible organ. All possibility of fraud is eliminated; for the instrument is well above Eusapia's head, her hands are firmly held, and I distinctly see the distention of the curtain as far as the instrument. The accordion continues to make itself heard, and is pulled on so strongly that I say to the invisible power, "Well, since you have such a good hold on it, keep it!" I withdraw my hand, and the instrument remains as if glued to the curtain. It is no longer heard. What has become of it? I propose to light a candle to hunt for it. But the general opinion is that, since things are going so well, it is better to make no changes in the environment. While we are talking, the accordion begins to play,--a slight and rather insignificant air. In order to do that, it must be held by two hands. At the end of fifteen or twenty seconds it is brought to the middle of the table (playing all the while). The certainty that hands are playing it is so complete that I say to the Unknown, "Since you hold the accordion so well, you can doubtless take my hand itself." I reach out my arm at the height of my head, rather a little higher. The curtain inflates, and through the curtain I feel a hand (a pretty strong left hand); that is to say, three fingers and the thumb, and these grasp the end of my right hand. Let us suppose for an instant that the accordion could have been pulled by one of Eusapia's hands, which she had released, lifted up, and screened behind the curtain. It is a very natural hypothesis. Let us say that the two controllers on the right and on the left respectively were cheated by the dexterity of the medium. That is not impossible. But, then, that the instrument might play, our heroine would have had to release her two hands and leave the two controllers at loggerheads with their own hands. It is something not to be thought of. Apropos of the existence of a third hand, a fluid hand, created on the spur of the moment, with muscles and bones (an hypothesis so bold that one hardly dares to express it), I relate here what we observed during the sitting of November 19.