Geographical Diagram. The Principal Varieties of Mankind. Published by James Reynolds 174 Strand, London. 3 May 1850. Drawn and engraved by John Emslie.

Coloured engraving, drawn and engraved by the British artist John Emslie, showing facial portraits of men from different parts of the world, 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 a set of 44 engravings on the subjects of geography, geology, astronomy and natural philosophy, published by James Reynolds, London, 1850-1860.