App. I. 



DIMENSIONS. 



453 



Brcjdth 



of 

 Cranium. 



Circum- 

 fi'rence of 

 Crunium. 



No. 



Length i Length 



of I of 



Skull. Cranium. 



Breadth Circura- 



of fen nee of 



Cranium. Cranium. 



2 

















 10 



3 



2 



2i- 

 10 

 10 

 10 



3 



in. line.-,, in lines. 

 19 



19 

 19 

 IS 

 17 

 19 

 19 

 18 

 19 

 17 

 18 

 19 

 18 



Making allowance for difference of sex — the sknlls 

 not exceeding seven inches eight lines in length, 

 being most of them plainly female — the range of 

 diversity is here mnch less than would be found in 

 the same number of European skulls from a locality 

 of the same extent as the ground from which M. Du 

 Chaillu gathered the above collection. 



And this comparative conformity appears to de- 

 pend on a corresponding uniformity in the manner 

 of life, in the fewer wants, the less diversified pur- 

 suits, of the Equatorial Africans. Their food, the 

 mode of obtaining it, the bodily actions, muscular 

 exertions, and mental efforts stimulating and govern- 

 ing such acts, vary comparatively little in the peo])le 

 visited by M. Du Chaillu. The cannibal habits of 

 the Fans offer the main difference, and with them 



