He soon became an honorary member of many foreign academies and philosophic societies, including the Royal Swedish Academy of Sciences (1785), the American Academy of Arts and Sciences (1792) and also in Prussia and Russia.
Ubrzo je postao počasni član mnogih inostranih akademija i filozofskih udruženja uključujući Royal Swedish Academy of Sciences(1785), član američke akademije umetnosti i nauke (1792), takođe i Pruske i Ruske.