128 Dynamic Evolution 



process. Development was forced on very 

 young animals by drastic methods for two 

 or three generations, after which animals are 

 born with a natural aptitude for early speed. 

 High speed at the trot is an artificial gait 

 forced on horses during the nineteenth cen- 

 tury, and high speed at an early age is a 

 second artificial product piled upon the first 

 during the last quarter of the century. 



It may seem strange to the reader that 

 these facts could exist for a long time in horse- 

 breeding operations and the breeders not 

 become aware of them. Apart from the fact 

 that breeders have not known what the 

 factors of energy were and how they should 

 be applied in its measurement, there are 

 many things tending to conceal the process 

 involved. First, horse generations are com- 

 paratively long and few breeders have re- 

 mained professionally in the business long 

 enough to see which parts of the product 

 coming from two generations produce the 

 best results. Small breeders do not keep 

 track of long-time results, and large breeders 



