Darwin Correspondence Project

French agricultural chemist. Director, École des tabacs, 1846. First to isolate nicotine. From 1866 to 1879, he worked on topics in soil chemistry. Professor of agricultural chemistry, Institut agronomique, 1876; Conservatoire des arts et metières, 1887. Discovered, with Achille Müntz (1846–1917), the process of nitrification, 1877.