CHEMICAL visit Berthollet to Lavoisier at the Sorbonne in Paris. Count Claude Louis Berthollet (1748-1822) French chemist and scientist; he made friends with the "father of chemistry" Antoine Lavoisier (1743-1794); chemist; biologist; philosopher and French economist; with whom he later collaborated the drafting of the Méthode de nomenclature chimique (1787). Chromos; Liebig figurine series "Chemical famous"; n. 3; Italy in 1929.