'Lines of demarcation' between man, gorilla, & macaque / by G.B. Halford.

Licence: Public Domain Mark

Credit: 'Lines of demarcation' between man, gorilla, & macaque / by G.B. Halford. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.