LECTUEE VII. 



199 



would at once declare it to he the cranium of an ape, as in sucli 

 a mutilated skull there would not be found the least character- 

 istic mark which would justify an opposite inference. 

 Fig. 73. Chimpanzee skull, viewed from below. 



We possess the measurements of the two so-called Aztecs — 

 the Mulatto dwarfs ; the boy then being about sixteen or 

 seventeen^ the girl thirteen to fourteen years old. I have cal- 

 culated these measurements in the same way as those given of 

 the Negro and European^ and having compared them with two 

 anthropoid apes, the chimpanzee and the orang, obtained the 

 following values. The proportion of the length is : — 





Chimpanzee. 



Orang. 



Aztecs. 



Old. 



Young. 



Old 



Young. 



Boy. 



Girl. 



Of the vertebral column to 















that of the arm z=. 100. . . 



136-5 



163-5 



158-5 



167-7 



119-7 



115-1 



Of the vertebral column to 















that of the leg = 100... 



98-8 



115-2 



90-4 



96-7 



122-8 



115-3 



Of the upper arm to that 















of the forearm := 100. . . 



93 



85-7 



102 



99 



66-7 



67-7 



Of the upper arm to that 















of the hand = 100 



77-5 



87 



78-1 



82 



52-8 



62-5 



Of the thigh to that of 















the leg — 100 



76-5 



78-9 



81-8 



81-4 



102-5 



108-1 



Of the thigh to that of 



the foot — 100 



74-2 



76-3 



97-5 



109-3 



50 



48-7. 



Of the ai-m to that of the 



leg — 100 



72-4 



70-6 



57 



57-6 



102-5 



104-4 





