In 1859 he became engineer in chief of mines, and in 1861, upon the death of Louis Cordier, he was appointed professor of geology at the Museum d'Histoire Naturelle in Paris and was also elected member of the French Academy of Sciences.
He became engineer in chief of mines. This was in 1859. This was upon the death of Louis Cordier. He was appointed professor of geology at the Museum d'Histoire Naturelle in Paris. This was in 1861. This was upon the death of Louis Cordier. He became engineer in chief of mines. This was in 1859. This was upon the death of Louis Cordier. He was also elected member of the French Academy of Sciences. This was in 1861. This was upon the death of Louis Cordier.