THE SCIENTIFIC EQUITATION 



entire length of the side of the manege at the half- 

 passage. 



By the same progression as for the half-passage 

 at the walk, the horse is next trained to the half- 

 passage at the trot. 



When this is well executed, then comes the 

 shoulder-in at the gallop. Galloping to the right 

 hand, head against the wall, does not need a change 

 of lead. But for the change of hand diagonally, the 

 horse must change the lead when the change of 

 hand is completed and before passing the corner. 

 So too, for the shoulder-in with the horse's head 

 toward the center of the enclosure and the croup 

 toward the wall, the horse has to be galloping at 

 the opposite hand. 



If, for example, the rider is at right hand and 

 wishes to execute the shoulder-in from right to left, 

 at the same hand, over a line parallel to the long 

 side of the manege, and with the horse's head to- 

 ward the center and the croup to the wall, it is 

 evident that the first part of the movement which 

 puts the head inward must be done with a right 

 lead. Then for the shoulder-in, the lead must 

 change from right to left. But when the horse once 

 more travels straight along the wall, it is, as before, 

 at the right hand and must lead once more to the 

 right. At first, however, it is better to decompose 

 the movement, changing from the gallop to the trot, 

 at the end of each portion, and then returning once 

 more to the gallop with the proper lead. When, 



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