Effects of Two Generations 123 



as to be unbelievable, but they are easily 

 verified. Volume XVIII. of the Year Book 

 gives these horses with the names of their 

 sons and the number of performers got by 

 each son. From the Index of the Trotting 

 Register it can be determined just when each 

 horse and each son were born. Horse his- 

 tories by Wallace, Parlin, Busby, and others 

 will tell what happened to the six horses and 

 when it happened. The Year Book also gives 

 the names of the sons and daughters which 

 were raced so that accumulations of energy 

 in the intervening generation may be taken 

 into consideration. 



Prior to i860 it was only rarely that horses 

 trotted in public before the age of six years, 

 and famous trotters did not arrive at their 

 best until sometime between the ages of 

 twelve and fifteen. Goldsmith Maid got her 

 best record at the age of seventeen in 1874. 

 Now we have horses which trot in 2 : 10 at 

 the ages of two and three years, and few 

 remain on the track beyond the ages of six or 

 eight. A description of the early events 



