B 



FIG. 21. Drawings of the internal casts of a Man's and of a 

 Chimpanzee's skull, of the same absolute length, and placed in 

 corresponding positions, A. Cerebrum ; B. Cerebellum. The 

 former drawing is taken from a cast in the Museum of the 

 Royal College of Surgeons, the latter from the photograph of 

 the cast of a Chimpanzee's skull, which illustrates the paper by 

 Mr. Marshall "On the Brain of the Chimpanzee" in the 



