PIERRE, a learned physician and antiquary, born at Castres in Languedoc, about 1620. He took his doctor's degree at Montpellier in 1640, and practised with great success in his native city. In 1653 he settled in Paris, having been named counsellor and physician in ordinary to the king; and in 1674 was admitted into the Academy of Sciences. He died in 1689. His works, chiefly on medical subjects, are numerous. The principal are, Historiarum et Observationum medico-physicarum Centuria quinque, Castres, 1653, 12mo; Bibliotheca Chymica, Paris, 1654, 12mo; De vero Telescopi inventore, cum brevi omnium conspicillorum historia, Hague, 1655, 4to; Hortus seu Armamentarium Simplicium, plantarum, et animalium ad Artem medicam spectantium, Castres, 1666, 8vo; Observationum Microscopicarum Centuria, Hague, 1656, 4to. He was also the author of several works in French, particularly two treatises on Antiquities, and a discourse on the Plurality of Worlds.