Photo: J. Russell & Sons. 



PROFESSOR SIR ARTHUR KEITH, M.D., LL.D., F.R.S. 



Conservator of the Museum and Hunterian Professor, Royal 

 College of Surgeons of England. One of the foremost living 

 anthropologists and a leading authority on the antiquity of man. 



Aftfr T. II. lluxlty (by permission of Messrs. Alacmillan). 



SKELETONS OF THE GIBBON, ORANG, CHIMPANZEE, GORILLA, MAN 



Photographically reduced frorr diagrams of the natural size (except that of the gibbon, which was twice as large as nature) 

 drawn by Mr. WaterhotiM Hawkins from specimens in the Museum of the Royal College of Surgeons. 



