112 Dynamic Evolution 



geldings. From what has been said before 

 the reader will probably be able to tell in 

 advance what the Trotting Register will say 

 about the sexual distribution of the per- 

 formers produced by these daughters. The 

 book shows, not one-third and two-thirds, 

 but 1 79 stallions and 1 78 mares and geldings. 

 From similar facts for many horses similar 

 predictions may be made in regard to what 

 the books will say about the descendants 

 two or three generations after the described 

 horse. 



It has been pointed out before that the 

 horse which goes to the race track does not 

 get as numerous an offspring as the horse 

 which goes immediately to the stud. Also, 

 that the horse which is raced is better de- 

 veloped dynamically than the horse which 

 stays at home. There are exceptions when 

 the stay-at-home is worked hard in harness, 

 and the raced horse is idle for years after a 

 very short racing career, but on the average 

 the raced horse is better developed than the 

 one not raced. There are a good many cases 



