60 Dynamic Evolution 



to the half-mile tracks, while those which 

 do not develop winning qualities are dis- 

 carded. 



One of the peculiarities of the racing busi- 

 ness is that if a horse develops remarkable 

 speed at an early age, or in a short time, he is 

 barred by his record from opportunity to get 

 into profitable races, with the result that 

 such a horse is rarely raced more than one 

 season. As a general thing, remarkable 

 natural trotters have not done much trotting. 

 A few exceptions make the general propo- 

 sition stand out clearly. 



Another peculiarity is that a trotter does 

 not get a record because of his ability to trot 

 in record time, nor even because he actually 

 does trot in record time. Many horses have 

 trotted a mile in a race on a race track in 

 less than 2 : 30 without obtaining a record. 

 A horse gets a record only when he crosses 

 the line ahead of all competitors in the race. 

 An exception is the so-called "tin-cup record " 

 obtained when a horse trots by himself in 

 record time under certain specified condi- 



