WHALES AND MERMAIDS 335 



convoluted condition of the very active and vivacious 

 porpoise, may be due to the need of a nervous supply 

 sufficient to carry on the constantly vigorous movements 

 of such a warm-blooded inhabitant of the ocean. This 

 thought may serve as a caution against that hasty attri- 

 bution of a direct connection between intellectual power 

 and the development of certain superficial parts of the 

 brain, which has been so widely diffused a belief of our 

 own days. 



