In 1827 he published his classic Memoir on the Geology of Central France, including the Volcanic formations of Auvergne, the Velay and the Vivarais, which was later re-published in a revised and somewhat more popular form in The Geology and extinct Volcanos of Central France in 1858.
1827 publicerade han sin klassiska Memoir on the Geology of Central France, including the Volcanic formations of Auvergne, the Velay and the Vivarais vilken senare publicerades igen i en omgjord och mer populär form i The Geology and extinct Volcanos of Central France (1858).