Character 133 



the transit to new environments some parts of 

 use in earlier times or in earlier stages of de- 

 velopment become dormant and are not called 

 into activity so long as an economic deficit pre- 

 vents the generation of surplus energy. Rou- 

 tine activity makes the first claim on energy, 

 and if there is no surplus, absorbs it all. But 

 with better economic conditions comes a flow 

 of surplus energy which will not be exhausted 

 in routine activity, but will seek exit through the 

 unused parts and stimulate them to a renewed 

 activity. Muscles developed for walking may 

 now be used in the dance; vocal organs de- 

 veloped for speech may now be used in song; 

 and finger muscles developed in plain acts 

 of grasping may now be trained to intricate 

 coordination in playing a musical instrument, 

 or applied with increasing complexity in the 

 deft manipulation of the finer manual arts. 



The transformation of organs is greater than 

 is implied by these illustrations. If there is 

 an element of truth in what I have said about 

 the existence of an outer and an inner body, 

 each physical organ has a correlative structure 

 in the central nerve ganglia. As the outer body 



