Germany. Portrait. Engraving. Image measures 13" x 8.5". Portrait of Christian Gottlieb Ludwig (1709-1773), German physician and botanist. He is remembered for his correspondence with Carl Linnaeus regarding Linnaeus' classification system. Engraved by E. G. Haussmann. Minor staining in upper right corner, margins are cropped, Ludwig's death date marked in red ink. This is one of hundreds of portraits of scientists that can be found in the Gallery.