apparently regarded any test that reflected the skeptical attitude of the investigators as unbecomingly suspicious. Deslon, however, remained a staunch believer in the new system, and defended its cause before the Faculty of Medicine, dwelling upon the honor of having it presented to them, and the eternal glory they would merit by accepting "the most important discovery at which the human mind had ever marveled." But the Faculty voted to reject the propositions, and Deslon lost his seat in their body. This adverse action, together with Mesmer's threat to leave France, seems to have swelled the enthusiasm in his behalf to enormous proportions. He tells us that he received a letter from the queen urging him not to shirk his duty to mankind by leaving France at this juncture, that he was visited by a high official in behalf of the king offering him an annuity of 20,000 livres, with an additional 10,000 livres for the rental of an establishment for operating his cures. Mesmer insisted upon the formal and irrevocable admission of the existence and utility of his discovery as preliminary to all negotiations, and demanded, in addition to the annuity, the gift of an estate; but this was a step farther than royal protection would venture. Our information regarding the latter portion of Mesmer's Parisian career is meagre. In 1781 Deslon published his work on "Animal Magnetism," in which he repeats with undiminished enthusiasm his praises of Mesmer, describes the marvelous cures he has witnessed and prophesies the eventual triumph of the system. Shortly thereafter Mesmer went to the Spa; Deslon remained in Paris and began to treat patients by animal magnetism and with great success. He formed a special private class of educated men and women, from each of whom he received ten louis d'or per month. Upon hearing of this, Mesmer hurried back to Paris and found his former adherents divided into Mesmerists and Deslonists. He then (October, 1782) denounced Deslon as one who had betrayed his secrets and was misrepresenting the system. Through the efforts of friends, an inner circle--the first of the "Loges d'Harmonie"--was formed, consisting of one hundred members, each of whom paid one hundred louis d'or for the privilege of hearing Mesmer's exposition of his whole secret. Dissensions and discussions continued to arise; one of his hearers said "that those who know the secret are in greater doubt than those who are ignorant of it;" and M. Berthellot, the chemist, who in paying his fee reserved the right of criticism, was so irritated at the pedantic and ridiculous treatment to which he was subjected, that he upset the "baquet" and left the room in a violent rage. Matters went on in this way, with frequent propositions of a scientific examination, and as frequent refusals on the part of Mesmer to have further dealings with scientific societies, until, in 1784, the famous commission was appointed by the throne.