MENTAL AND SOCIAL EVOLUTION 131 



or reasoning in man, have been evolved, by reason of 

 those variations, or differentiations. It is also likely, 

 that when man's present memory, reason, and will, shall 

 have been in use a sufficient time, they will become as 

 automatic, as are now the emotions and instincts. Then 

 the new born infant will have them as he now has fear, 

 love, and hatred. Then higher, more abstruse, more 

 complex, psychic phenomena will gradually appear in the 

 mature human organism. This should come only with 

 the growth of brain, in, or above the cerebrum, with new 

 reflex arcs connecting it with all the other parts of the 

 nervous system. But Meyer has placed this whole ques- 

 tion upon a new basis. If, as he contends, the innumer- 

 able cells, are like little balls at first, which unwind, as 

 mental experience, and practice works upon them, then 

 the strenuous excitation, which the will-to-think-and-do, 

 exerts upon these little potential reflex connections, un- 

 winding them, and throwing out new short cuts, to brain 

 centers, reached before, by only long reflex arcs, then, 

 that will account for the superiority of some brains over 

 others. Yet there are brains originally superior to 

 others. 



