Caption:
Oval portrait of Jean-Baptiste Pierre Antoine de Monet, Le Chevalier de Lamarck, French soldier, naturalist and academic, professor of botany of the National Institute, 1744-1829. Engraving by William Hopwood after a portrait by Charles Thevenin. Handcoloured copperplate stipple engraving from Dr. Robert John Thorntons New Illustration of the Sexual System of Carolus von Linnaeus, the Temple of Flora, London, 1805.