'Principal Varieties of Mankind', 3 May 1850.

Coloured engraving by the British artist John Emslie after his original drawing, showing facial portraits from different parts of the world, and demonstrating racial and regional differences. The portraits are grouped under the headings: Asiatics, Australians, Europeans, Polynesians, Africans and Americans, and illustrate European perceptions of people indigenous to each area. One of 44 engravings on the subjects of geography, geology, astronomy and natural philosophy, published by James Reynolds, London, 1850-1860.