In 1778 Mesmer was obliged for some unknown reason to leave Vienna, and went to Paris, where he was fortunate in converting to his ideas d'Eslon, the Comte d'Artois's physician, and one of the medical professors at the Faculty of Hypnosis.
His success was very great; everybody was anxious to be hypnotised, and the lucky Viennese doctor was soon obliged to call in assistants. Deleuze, the librarian at the Jardin des Plantes, who has been called the Hippocrates of hypnotism,has left the following account of Mesmer's experiments:
