62 Dynamic Evolution 



their summers in the pasture and their 

 winters in the barn. In large establishments 

 they are not required to work, and many of 

 them never wore harness. The stallions of a 

 breeding establishment spend their lives in 

 specially constructed box stalls to which are 

 attached individual paddocks some thirty or 

 forty feet square. In such conditions they 

 get no exercise other than that which they 

 take voluntarily. A small minority of breed- 

 ers have gone to the expense and trouble of 

 exercising their stallions a short time each day. 

 In a few cases this exercise has amounted to 

 as much as driving the stallion from five to 

 seven miles per day, mostly at a jog trot, with 

 a half-mile or so of comparatively fast 

 trotting. 



In the large establishments where several 

 stallions are kept, these usually range from 

 the most highly prized individual, which is 

 given every care and attention and is bred 

 to the choicest mares, to the "dung-hill," 

 which is required to do farm drudgery and is 

 bred to scrub stock at a nominal fee. The 



