Much more frequently still we obtained balancings without contact, balancings which sometimes went so far as to tip the table entirely over. To explain in terms of mechanical movement the effects we observed, we should have to admit the involuntary contact of 84 fingers, or the light pressure of 25, or two hands acting with intent to deceive. But these suppositions, also, are not at all admissible. Nevertheless, we always felt that someone might present the objection that it was difficult to observe these operations with precision, and we were constantly urging M. Gasparin to convince the doubters and sceptics in the matter of the non-contact of the fingers by means of some mechanical device. Out of this arose the last experiment made at that time, and the most conclusive of all. A light film of flour was almost instantaneously spread over the table by means of a sulphur bellows such as is used in vineyards. The movement of the chain of hands above the table set it whirling. Then the film of flour was examined and found to be inviolate from the touch of hands. Several repetitions on different days always gave the same results. Such are the principal facts which establish the reality of the phenomenon. Thury next takes up the more difficult investigation of courses. _The Seat of the Force._--It is possible that the force which produces the phenomena is a general telluric force which is merely transmitted by the operators or set in action by them; or, possibly, the force resides in the operators themselves. To decide this question, we had a large movable platform constructed which revolved on a perfectly vertical axis. Near the outer periphery of the platform stood four chairs, and there was a table at the centre. Four operators, experts in nervo-magnetic action, took their places on the chairs, and, placing their hands on the table in the centre, tried to give it circular movement by non-mechanical power. In fact, the table soon began to move. Then it was stopped and fastened to the platform by means of three screws. The effort exerted upon this table by the four magnetizers was such that, at the end of three-quarters of an hour of experimentation, the central supporting leg, was broken. Yet the movable platform did not turn. The tangential force required to mechanically move the empty platform was only a few grams; loaded with the four operators, 250 grams was necessary, applied about 28 inches from the centre. This figure would have been much less if it had been possible to distribute the weight of the operators uniformly.