(Francis), doctor of physic, born at Amiens in 1696, and who died on the 10th of September 1765, aged 69 years, is author of some works which do honour to his memory. 1. A complete System of Surgery, in 2 vols in 12mo; a treatise much recommended by surgeons to their pupils. 2. A choice Library of Medicine, taken from periodical publications, both French and others: this curious collection, continued and completed by M. Goulin, makes 9 vols in 4to, or 18 vols in 12mo. 3. A Translation of Vander Wiel's Observations on Medicine and Surgery, 1758, 2 vols in 12mo. Plancus was the editor of various editions of works on medicine and surgery, and enriched them with notes. He shut himself up in his study for a long time before he practised his profession.