On the advice of Deslon he challenged the Faculty of Medicine, proposing to select twenty-four patients, of whom twelve should be treated according to the old and approved methods and twelve magnetically, the cures to prove the efficacy of the treatment. The faculty declined to accept the conditions. Deslon asked his colleagues on the faculty to summon a general meeting to examine the matter. Through the influence of M. de Vauzesmes, the meeting was very hostile to him, and he was condemned and threatened with having his name removed from the list of licensed physicians if he did not reform. Mesmer now wrote to Marie Antoinette suggesting that the government furnish him with houses, land, and a princely fortune to enable him to carry on his experiments untroubled. The government finally offered him a pension of 20,000 francs, and the cross of the order of St. Michael, if he had made any discovery in medicine, and would communicate it to the physicians whom the king should name. Mesmer refused the conditions and left Paris. Deslon was then called upon to renounce animal magnetism, but instead, invited investigation. In 1784 the government appointed a commission to inquire into magnetism, consisting of members from the Faculty of Medicine and the Academy of Sciences. Franklin, Lavoisier, and Bailly were members, the last named being chosen reporter. Another commission, composed of members of the Royal Society of Medicine, was charged to make a distinct report on the same subject. After experimenting for five months the first commission presented two reports, one public and the other secret, neither of which was favorable. The Royal Society of Medicine presented its report a few days later, and agreed with the first commission with the exception of one member, Laurent de Jussieu, who dissented and published a separate report of a more favorable nature. The gist of the commissions' reports was that imagination, not magnetism, accounted for the results. Soon after the commissions started their investigations, Mesmer returned to Paris at the invitation of his friends, who proposed to open a subscription for him for 10,000 louis. Immediately it was over-subscribed by over 140,000 francs. He came with the understanding that he was to give lectures and to reveal the secret of animal magnetism. The lectures and secrets were not satisfactory. After the commission reported he left Paris and returned to his own country where he was little heard of during the remainder of his life which ended in 1815.