I hope to be able to resume my experiments with this medium; for to me he seems to be one of the most powerful I have ever seen. It is really a pity he should have fallen into the hands of imprudent and ignorant young men; they have abused his force, worn him out, and made him ill. Judiciously handled, he might have become extraordinary. It remains to be seen, if the bad conditions under which he has been developed have not had the effect of destroying the rare faculty he possessed. I will return to these considerations later on. The lights produced by this young man were the most brilliant I have ever seen. Their colour has been well compared to the light of the nebula by one of my co-experimenters, a distinguished amateur astronomer. This experimenter had a good spectroscope, but he has never been able to succeed in analysing, spectroscopically, the lights we have seen. They were too unsteady and fugitive. I now come to some visual phenomena, which have not the same luminous feature as those I have been speaking about, but which present another very curious feature: they give representations of objects or of human forms. I have not seen any phosphorescent human forms such as certain observers affirm to have seen. I have said that the Bordeaux medium, in presence of whom I had seen such fine luminous phenomena, had also given us a luminous hand. At Choisy in 1896, I saw the same thing with Eusapia. There was enough light in the room to see Eusapia’s hands. Under these conditions—the hands of the medium being not only held by her right- and left-hand neighbours, but visible all the time on the table—we perceived at about 1 foot 9 inches above Eusapia’s head a slightly phosphorescent hand, which shook about in the opening between the two curtains. This appearance was very distinct, and was perceived by all those whose positions allowed them to see it. This was not the first time I had seen the form of a hand. In 1895, at l’Agnélas, I saw a hand and bare forearm, which showed itself in profile above M. Sabatier, seated in front of me, and touched him on the forehead. At the same moment, M. Sabatier mentioned having been touched on the head. My perception was clear and decided; I was positive of having seen this hand and forearm. I remember that my co-experimenters—two of them at least—hesitated to admit my observation, because I had been the only one to see it. In 1895, I was not so accustomed to seances as I became later on, and I was inclined to listen with deference to my friends’ remarks, but I was so positive of the reality of my observation, that it was inserted in the report. Subsequent experience has multiplied observations of this order: they recall to mind the round head seen at Carqueiranne. The hand and forearm which I saw at l’Agnélas were black and opaque. They were projected on to the clear background of the room where we experimented; we were seated in such a way that only I could see them.