La Haye: 1784.
149 pages. 8vo, contemporary wrappers; worn. La Haye, 1784. First edition.
Exposition of Mesmer's cosmic system by his chief French disciple. This work played an important role in the internal schism that weakened Mesmer's movement. Bergasse, who had founded the Society of Universal Harmony, which might be called the "Mesmerist church", began to develop his own ideas on animal magnetism which Mesmer would not tolerate. The book also contains some valuable information on the financial practices of Mesmer's organization. Caillet 979. Blake 42. Wellcome II 147.