The assertions made in the celebrated treatise of Deleuze are thus summed up:12 “There is a fluid continually escaping from the human body,” and “forming an atmosphere around us,” which, as “it has no determined current,” produces no sensible effects on surrounding individuals. It is, however, “capable of being directed by the will;” and, when so directed, “is sent forth in currents,” with a force corresponding to the energy we possess. Its motion is “similar to that of the rays from burning bodies;” “it possesses different qualities in different individuals.” It is capable of a high degree of concentration, “and exists also in trees.” The will of the magnetiser, “guided by a motion of the hand, several times repeated in the same direction,” can fill a tree with this fluid. Most persons, when this fluid is poured into them from the body and by the will of the magnetiser, “feel a sensation of heat or cold” when he passes his hand before them, without even touching them. Some persons, when sufficiently charged with this fluid, fall into a state of somnambulism, or magnetic ecstasy; and when in this state, “they see the fluid encircling the magnetiser like a halo of light, and issuing in luminous streams from his mouth and nostrils, his head and hands, possessing a very agreeable smell, and communicating a particular taste to food and water.”
One would think that these “notions” were quite enough to be insisted upon by any physician who wished to be considered sane; but they form only a small portion of the wondrous things related by M. Deleuze. He further said, “When magnetism produces somnambulism, the person who is in this state acquires a prodigious extension of all his faculties. Several of his external organs, especially those of sight and hearing,