After this seance my most ardent desire was to see the same experiments reproduced at my own house. In spite of all the care I took with my observations, several objections can be taken to the absolute certainty of the phenomena. The most important arises from the existence of the little dark cabinet. Personally, I was sure of the perfect probity of the honorable Blech family, and I am unable to accept the idea of any trickery whatever on the part of any of its members. But the opinion of readers of the formal report may not be so well assured. It was not _impossible_ that, even unknown to the members of the family, some one, with the connivance of the medium, glided into the room, favored by the dim light, and produced the phenomena. An accomplice entirely clothed in black and walking barefoot would have been able to hold the instruments up in the air, put them in movement, make the touches, and cause the black mask to move at the end of a rod, etc. This objection could be verified or quashed by renewing the experiments at my house, in a room of my own, where I should be absolutely certain that no confederate could enter. I should myself arrange the curtain, I should place the chairs, I should be certain that Eusapia would come alone to my apartments, she would be asked to undress and dress in the presence of two lady examiners, and every supposition of fraud alien to her proper personality would thus be annihilated. At this epoch (1898) I was preparing, for _l'Annales politiques et litteraires_, some articles upon psychic phenomena, which, revised and amplified, afterwards formed my work, _The Unknown_. The eminent and sympathetic editor of the review showed himself assiduous in examining with me the best means of realizing this scheme of personal experiences. Upon our invitation, Eusapia came to Paris to pass the month of November, 1898, and to devote eight soirees especially to us--namely, the 10th, 12th, 14th, 16th, 19th, 21st, 25th, and 28th of November. We had invited several friends to be present. Each one of these seances was the subject of a formal report by several of those who were present, notably by MM. Charles Richet, A. de Rochas, Victorien Sardou, Jules Claretie, Adolphe Brisson, Rene Baschet, Arthur Levy, Gustave Le Bon, Jules Bois, Gaston Mery, G. Delanne, G. de Fontenay, G. Armelin, Andre Bloch, etc. We met in my salon in the avenue de l'Observatoire, in Paris. There were no special arrangements, except the stretching of two curtains in one corner, before the angle of two walls, thus forming a kind of triangular cabinet, the walls about which are there unbroken, without door or window. The front of the cabinet was closed by these two curtains, reaching from the ceiling to the floor and meeting in the middle. It is before this kind of cabinet that the reader will please imagine the medium to be seated, with a white wooden table (kitchen table) before her.