460 SKULLS OF WESTERN AFEICANS. App. L 



skulls wlncli have called forth the present remarks, is 

 not, as the terra would imply, a greater length of 

 cranium than in Indian and European skulls which 

 would be called " hrachycephalic," or " hypsicephalic," 

 but merely a want of filling out of the brain-case by 

 lateral or vertical expansion. The dimension of 

 " length " is more constant than that of " breadth " 

 or " depth " in the cerebral hemispheres of the human 

 brain. 



Were the natives ofWesternEquatorial Africa, dis- 

 covered or visited by M. Du Chaillu and represented 

 by the skulls which he collected and transmitted, as 

 constant, keen, and clever hunters as the North 

 American Indians, there might then be expected to 

 rise among them here or there an individual with 

 qualities making him superior in his craft, and 

 enabling him to direct and dominate over the more 

 common sort. And in proportion as the brain might 

 have a concomitant increase of size in such " Chief," 

 we should expect the long (" dolichocephalic type ") 

 to merge into the broad (" hrachycephalic "), or lofty 

 (" hypsicephalic), or globular (sphoerocephalic) modi- 

 ficatioirs of cranial configuration. 



In all the Negro skulls in the present collection, 

 as in those of Boschismen, Mincopies, Australians, 

 and every other variety that has come under my 

 observation, the essential characters of the archence- 

 phalous subclass and of its sole genus and species 

 are as definitely marked as in the skulls of the 

 highest white races. 



