He taught natural history at the Collegium Carolinum in the Ottoneum, Kassel (1778–84), and later at the Academy of Vilna (Vilnius University) (1784–87).
Ia mengajar sejarah alam di Collegium Carolinum di Ottoneum, Kassel (1778-1784), dan kemudian di Akademi Vilna (Universitas Vilnius) (1784-1787).