| Description | Photographs of portraits, lithographs and silhouettes of Henry Louis Duhamel, Christoph Jacob Trew, Peter Simon Pallas, Goerges Louis Lecter, Comte de Buffon, Louis Jean Marie Daubenton, Albrecht von Haller, Johann Gesner, Jean Jacques Rousseau, and Thomas Pennant, which appear in the publication Tour on the Continent, 1765. |