THE EVOLUTION OF MIND 



I am inclined to regard these considerations 

 [as very powerful ones, — and there are several 

 others which lead to the same conclusion. To 

 present the case properly would require a whole 

 chapter ; but it is not essential for our present 

 purpose that the question should be decided. 

 Whether Mr. Spencer's view of the respective 

 functions of the cerebrum and cerebellum be 

 [correct or not, it equally remains true that the 

 class of functions shared by the two are idea- 

 tional functions. They compound in double, 

 triple, quadruple, or in far higher multiples, the 

 sensory elements already simply compounded 

 by the medulla. And it is in this compound 

 grouping of impressions, past and present, ac- 

 cording to their various degrees of likeness and 

 unlikeness, that thought and emotion, the high- 

 est phases of psychical life, consist.^ 



A moment ago we asked, what is the mean- 

 ing of the ceaseless interchange of molecular 

 motion which goes on among the innumerable 

 cells of the brain ? We now see what is the 

 meaning of it, for there can be but one mean- 

 ing. The continual redistribution of nervous 

 energy among the cells is the objective side of 

 the process of which the subjective side is the 



^ [The Spencerian theory, especially as to the functions of 

 the cerebellum, would hardly have been defended by Fiske 

 had he rewritten this chapter in the light of later research. A 

 new era has since dawned in the physiology of the brain.] 

 203 



