Some Considerations respecting the Parietal Bone. 



343 



Fig. 79. 

 Chimpanzee. 



Fig. 81. 

 Gorilla. 



Fig. 80. 

 Gorilla (Liverpool). 



Fig. 82. 

 Homo (R. C. S. Dublin). 



Fig. 83. 

 Australian (Ab origin). 



