CHANGES OF DIRECTION. 137 



straight line, I remarked that this lightness 

 always lost some of its delicacy when mov 

 ing in small circles, although my outside 

 leg came to the assistance of the inside one. 

 As soon as the hind leg put itself in motion 

 to follow the shoulders in the circle, I im 

 mediately felt a slight resistance. I then 

 thought of changing the use of my aids, 

 and of pressing the leg on the side opposite 

 to the direction of wheeling. At the same 

 time, in place of bearing the hand immedi 

 ately to the right, to determine the shoul 

 ders in that direction, I first, by the aid of 

 this hand, made the opposition necessary to 

 render the haunches motionless, and to dis 

 pose the forces in such a way as to main 

 tain the equilibrium during the execution 

 of the movement. This proceeding was 

 completely successful ; and in explaining 

 what ought to be the functions of the dif- 

 12* 



