While writing these monstrous scientific heresies, I feel very deeply that it is difficult to accept them. Still, after all, who can trace the limits of science? We have all learned, especially during the last quarter of a century, that our knowledge is not a very colossal affair, and that, apart from astronomy, there is as yet no exact science founded upon absolute principles. And then, when all is said, there are the _facts_ to be explained. Doubtless it is easier to deny them. But it is not decent or civil. He who has merely failed to find what satisfies him has no right to deny. The best he can do is simply to say, "I know nothing about it." The fact is that, as yet, we have not elementary data enough to enable us to characterize these forces; but we ought not to lay the blame upon those who study them. To sum up, I believe that I am able to go a little farther than M. Schiaparelli and affirm the certain existence of unknown forces capable of moving matter and of counterbalancing the action of gravity. There is a complex totality, as yet difficult to disentangle, of psychic and physical forces. But such facts, however extravagant they may appear, are worthy of coming within the sphere of scientific observation. It is even probable that they tend powerfully to elucidate the problem (a matter of supreme importance to us) of the nature of the human soul. After the end of that seance of the 27th of July, 1897, as I desired to see again the levitation of a table in full light, the chain was formed _standing_, the hands lightly placed upon the table. The latter began to oscillate, then rose up to a height of nine inches from the floor, remained there several seconds (all the participators remaining on their feet), and fell heavily back again.[23] [Illustration: PLATE VI PHOTOGRAPH OF THE TABLE RESTING ON THE FLOOR. PHOTOGRAPH OF THE SAME TABLE RAISED TO A HEIGHT OF TWENTY-FIVE CENTIMETRES. MADE BY M. G. DE FONTENAY.] M. G. de Fontenay succeeded in getting several photographs by the magnesium light. I reproduce two of them here (Pl. VI.). There are five experimenters who are, from left to right, M. Blech, Mme. Z. Blech, Eusapia, myself, Mlle. Blech. In the first photograph the table rests upon the floor. In the second it floats in air, coming up as high as the arms, at a height of about ten inches on the left and eight inches on the right. I hold my right foot resting upon Eusapia's feet and my right hand upon her knees. With my left hand I hold her left hand. The hands of all the others are upon the table. It is therefore altogether impossible for her to employ any muscular action. This photographic record confirms that of Pl. I., and it seems to me difficult not to recognize its undeniable documentary value.[24]