42 THE NEXT GENERATION 



circumstances, and thereby so influenced their descendants 

 that each generation passed a better inheritance on to the next. 



To-day if horses had the brain power of man, if they could 

 study the past and talk about it as man is apt to do, each 

 would have the right to say, " Through the struggle of my 

 ancestors I am what I am." 



Since the laws of inheritance do not affect the horse alone, 

 since they mold all other animals (including man), since they 

 cover generations of time that sweep back beyond the reach 

 of our reckoning, we understand why it is that scientists study 

 the subject from year to year with an interest that never flags. 

 They are determined to find out all they can about the laws 

 which control and gradually change living beings as the 

 ages go by. 



No one has spoken more clearly on this subject than 

 Charles Darwin. For this reason the next chapter will give 

 some of his facts. 



