14° Dynamic Evolution 



part of the nineteenth century. The only 

 possible exception to this statement must be 

 looked for in the cases of a few horses whose 

 breeding is not given. The remaining untold 

 thousands, once considered important, have 

 been eliminated gradually from what is 

 known as the trotting stock. 



With the English setters in America no 

 such elimination has been possible. The 

 original importations, about 1880, were of six 

 dogs and a few bitches, and all setters of the 

 present day must trace to these because there 

 are no others to which they can trace. The 

 ages of sires in the earlier generations of the 

 champion dogs must be the ages of the sires 

 of the imported dogs, and the ages of the 

 imported dogs when they got their progeny. 

 As there were only a few of these setters in 

 this country about 1890, and as every dog 

 of the present day has a good many dogs in 

 his pedigree when one goes back four genera- 

 tions, it follows that every dog of the present 

 day must have some young sires among his 

 earlier progenitors. It follows from this that 



