188 



THE HORSE, ASS, AND MULE 



able to produce all his jacks 15 J hands, which will sell at $500 

 when mature, rather than to produce one I5|-hand jack worth 

 $1500, and ten from 13^- to 14 hands, which will average not 

 more than $175." A jack 15 hands, with a heart girth of 64 

 inches, a cannon bone of 8 inches, and an ear of 32 inches, is 

 worth $500 to a breeder. The rules of the American Breeders' 



,..:,..,, 



FIG. 73. An American jennet, second prize in class at Illinois State Fair. From 

 photograph by courtesy of American Agricultiirist 



Association of Jacks and Jennets allow 1 5 hands as the standard 

 for imported jacks and jennets, the produce of unrecorded sire 

 or dam. Native jacks, the produce of unrecorded sire or dam, 

 should stand 15! hands. The Standard Jack and Jennet Registry 

 Association of America requires jacks to be at least 14 \ hands 

 high and jennets 14 hands. 



The introduction of the jack to America dates back to 1788. 

 The king of Spain sent George Washington a gray jack named 



