ARTIFICIAL SELECTION 



103 



view to the preservation of the best traits of both. In estab- 

 lishing the stock farm at Palo Alto, Leland Stanford had the 



FIG. 69. Improvement in geranium: at left, the original wild form, and at 

 right the latest improved form. (From photograph by Burbank.) 



conception of strengthening the trotting horse by a cross with 

 the larger running horse or thoroughbred. The result was the 

 formation of a peculiar type of horse, large, strong, supple, 



FIG. 70. Sports found among crossed amaryllids, the size and form markedly changed; 

 the flowers are three inches in diameter. (From photograph by Burbank.) 



and intelligent, very clean of limb and sleek of coat. This 

 group of horses held for some years the world's records for 



