GEOFFROY (Stephen Francis), a celebrated physician, botanist, and chemist, born at Paris in 1672. After having finished his studies, he travelled into England, Holland, and Italy. In 1704, he received the degree of doctor of physic at Paris; and at length became professor of chemistry, and physician of the Royal College. He was a member of the Royal Society of London, and of the Academy of Sciences. He wrote, 1. Several very curious Theses in Latin, which were afterwards translated into French. 2. An excellent treatise, intitled Tractus de Materia Medica, sive de Medicamentorum simplicium historia, virtute, delectu, et usu. He died at Paris, in 1731.