

 FIG. [v. 



Skull of boy about 8 years old 

 Skull of middle-aged mm 

 Skull of aged wo nan 

 Skull of a child (Indian) 



5. Skull of a young gorilla 



6. Skull of a young orangoutang 



7. Skull of a 3'oung chimpanzee 



8. Skull of a child (Indian) 



FIG. VI 

 Two young orangoutangs. 

 Observe the hu nan-like contours of their crania. 



{From "Nature Lover's Library") 



