Georges Cuvier (1769-1832), one of the founding figures of vertebrate palaeontology, pursued a successful scientific career despite the political upheavals in France during his lifetime. In the 1790s, Cuvier's work on fossils of large mammals including mammoths enabled him to show that extinction was a scientific fact. In 1812 Cuvier published this four-volume illustrated collection of his papers on palaeontology, osteology (notably dentition) and stratigraphy. It was followed in 1817 by his famous Le régne animal, available in the Cambridge Library Collection both in French and in Edward Griffith's expanded English translation (1827-35). Volume 4 of Recherches sur les ossemens fossiles focuses first on ruminants, horses and pigs. Cuvier then discusses fossils of carnivores, including bears, hyenas and big cats. The book concludes by describing fossil sloths, and the oviparous reptiles found in older strata, such as crocodiles, turtles, and marine dinosaurs.