14 Process of Power Changes 



altogether, and a large part of scientific teaching 

 is wholly erroneous because it is in direct con- 

 flict with well known facts which may be easily 

 verified. I refer now to those variations which 

 occur in the powers which distinguish the live 

 animal or the live plant from the dead one. 



When I say that these facts are known to com- 

 mon people and to scientists but not to science, I 

 mean that it is known how variations in power 

 capabilities are produced in individuals, but it is 

 not known to what extent these changes may be 

 carried. It is the intention here to show some- 

 thing of the extent to which such variations may 

 be carried by deliberate purpose, and tO' bring 

 into view isolated facts which are now buried in 

 out of the way places, and to show that they are 

 different phases of one and the same thing. 



Men train for athletic qontests, horses are 

 trained for racing purposes, carrier pigeons are 

 trained for long flights, and dogs are trained to 

 perform work of many different kinds. When 

 a man trains for a physical contest he takes se- 

 vere physical exercise day after day, week after 

 week, and month after month. The exercise is 

 of an intensity which will make him weary each 

 day. 



