Two portraits of Jean-Baptiste Lamarck one at age 35 and the other at age 82. Lamarch was a French naturalist known for contributing to evolutionary theory. He became blind towards the end of his life. Text: Lamarck, (Le Chev. J. B. P. A. de Monnet de). 1. a l'age de 35 ans, 2. a l'age de 82 ans. D'apres 2 anciennes gravures)
