MODERN RIDING. 65 



This tug, which is reciprocally felt in the 

 horse's mouth, by means of the above de- 

 scribed correspondence, is called the appui. 



While this appui is preserved between the 

 hand and mouth, the horse is in perfect obe- 

 dience to the rider, the hand directing him 

 with such ease that the horse seems to work 

 by the will of the rider, rather than the com- 

 pulsion of the hand. 



Now the correspondence, as it is termed 

 when we speak of the effective communica- 

 tion between the hand and mouth,— the appui, 

 when we speak of the quality or strength of 

 the operation in the mouth, — the support, 

 when we speak of the effect the hand pro- 

 duces in the position or action— are always 

 to be maintained in the manege and all united 

 paces ; and, without these, a horse is under 

 no immediate control, as we find in the ex- 

 tended gallop or full speed, where it may 

 require a hundred yards to pull before you 

 can stop. 



F 



