Reduction 59 



and in them the reduction and regeneration 

 takes place. Or, again, the result may 

 be even more complex. The reduction may 

 be in the part affected by the emotion, while 

 the regeneration or its equivalent takes place 

 in still other parts. When, in the process of 

 regeneration, the cells strive by growth to re- 

 place what has been lost, they must compete 

 for nutriment with the cells in other parts of 

 the body. If these other cells are more active 

 or better situated, they will secure the nutri- 

 ment and the part affected by the emotion will 

 remain dwarfed. Organs lost or injured by 

 shocks may not be replaced. This will account 

 for the different stages in embryo growth and 

 for the many changes in relative size of organ- 

 isms after birth. With the development of a 

 nervous organization, such changes must be 

 more numerous and alter fundamentally the 

 characters and activities of animals. The pri- 

 mary rhythm continues, but the somatic cells 

 are aggregated more firmly around the nerves 

 and are capable of sustaining the shocks which 

 the nerves propagate. The parts with few or 

 no nerves are more affected by the shocks 



