Georges CUVIER (1769-1832), zoologist and palaeontologist. Autograph letter signed to M. Dinet, professor at the Faculty of Science in Paris. ½ p. in-4, headed. Paris, 6 May 1809. Mounted under passe-partout with an engraved portrait (letter and portrait have been separated). He sends her his diploma. Attached is a pencil drawing of a fish (fossil?) by another hand, and old engravings of fossils.