145 
not merely in their absolute size and in the absolute capacity 
of the brain case, but in the proportions which the diameters 
of the latter bear to one another; in the relative size of the 
bones of the face (and more particularly of the jaws and 
teeth) as compared with those of the skull; in the degree to 
eae hg 
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\ navel (| hig i | 
AS wasnt 
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—— 
AAU a UU i 
Fre. 27.—Side and front views of the round and orthognathous skull of a Cal-. 
muck after Von Baer, One-third the natural size. 
L 
