156 GALLOPING EXERCISE. 



to follow him. The public training groom may 

 sometimes have more difficulties to encounter 

 in selecting a horse for this purpose than the pri- 

 vate trainer; as the former may be directed by 

 some of his employers to work their horses by 

 themselves, while others may leave the working 

 of theirs entirely to his better judgment; and as 

 we shall here consider him to be an honest man, 

 the latter arrangement is to be preferred. (See 

 Vol. I. Chap. 21, on the Duties of the Public 

 and Private Training Grooms, and on Jockeys). 



We next come to make our remarks on the 

 speed or pace of horses. How much faster some 

 can go than others, in their exercise or running, 

 must depend on a variety of circumstances. 

 First, on their physical powers, as to the strength 

 of their constitutions. Secondly, on their me- 

 chanical ones, as to how they may be formed in 

 the length, depth, and breadth of the different 

 parts of their bodies and extremities. Thirdly, 

 on their muscular strength, and on the state of 

 perfection to which their whole muscular system 

 may have been brought by their being well 

 trained. Fourthly, and indeed almost principally, 

 on the weight they may have to carry, and which 

 must ever regulate the length of rally that differ- 



