Interest in these questions went naturally with the new conception of the place of Man in Nature, and of Nature as the matrix of mind(84). But it had been acutely stimulated by the performances and professions of Mesmer at Vienna and Paris in the last quarter of the eighteenth century. These—though by no means really novel—had forced the artificial world of science and fashion to discuss the claim advanced for a new force which, amongst other things, could cure ailments that baffled the ordinary practitioner. This new force—mainly because of the recent interest in the remarkable advances of magnetic and electrical research—was conceived as a fluid, and called Animal Magnetism. At one time indeed Mesmer actually employed a magnet in the manipulation by which he induced the peculiar condition in his patients. The accompaniments of his procedure were in many respects those of the quack-doctor; and with the quack indeed he was often classed. A French commission of inquiry appointed to examine into his performances reported in 1784 that, while there was no doubt as to the reality of many of the phenomena, and even of the cures, there was no evidence for the alleged new physical force, and declared the effects to be mainly attributable to the influence of imagination. And with the mention of this familiar phrase, further explanation was supposed to be rendered superfluous. In France political excitement allowed the mesmeric theory and practice to drop out of notice till the fall of the first Empire. But in Germany there was a considerable amount of investigations and hypotheses into these mystical phenomena, though rarely by the ordinary routine workers in the scientific field. The phenomena where they were discussed were studied and interpreted in two directions. Some theorists, like Jung-Stilling, Eschenmayer, Schubert, and Kerner, took the more metaphysicist and spiritualistic view: they saw in them the witness to a higher truth, to the presence and operation in this lower world of a higher and spiritual matter, a so-called ether. Thus Animal Magnetism supplied a sort of physical theory of the other world and the other life. Jung-Stilling, e.g. in his “Theory of Spirit-lore.” (1808), regarded the spiritualistic phenomena as a justification of—what he believed to be—the Kantian doctrine that in the truly real and persistent world space and time are no more. The other direction of inquiry kept more to the physical field. Ritter (whose researches interested both Schelling and Hegel) supposed he had detected the new force underlying mesmerism and the like, and gave to it the name of Siderism (1808); while Amoretti of Milan named the object of his experiments Animal Electrometry (1816). Kieser(85), again (1826) spoke of Tellurism, and connected animal magnetism with the play of general terrestrial forces in the human being.