410 CONFIGURATION OF BRAIN. 



plexity of the Cerebrum in higher as compared with lower 

 Human Eaces is also associated with an enormous increase 

 in ' cranial capacity ' and weight of Brain — though 

 bodily stature remains practically the same — we have here 

 further evidence as to the vast development of the 

 Cerebral Hemispheres that has taken place during the 

 long roll of centuries, whilst the ancestors of present 

 civilized races have been gradually raising themselves 

 from pristine states of savagery and barbarism. 



The high convolutional development of the brain of 

 Man is, therefore, a matter of altogether greater signifi- 

 cance than the same feature in Elephants and Cetacea, 

 seeing that it clearly is not in him, as it is to a consider- 

 able extent with tli^m, a mere correlative of great com- 

 parative size of body. 



It is quite possible, however, that the relation between 

 high convolutional complexity of the Human Cerebrum and 

 high Intellectual and Moral Attainments may be general, 

 rather than special and invariable. This relation may, 

 indeed, be very similar to that which has been shown to 

 obtain in human beings between high Brain-weights and 

 superior Mental Attainments and Powers. Prevailing 

 tendencies decidedly favour such coincidences, and yet, 

 as we have seen, notable exceptions maj^ from time to 

 time be encountered. In subsequent chapters it will bo 

 pointed out that there is a functional inequality between 

 the two Cerebral Hemispheres, so that the asymmetrical 

 development of their otherwise corresponding convolu- 

 tions may be, at least in part, due to this fact. 



