175 



This would allow of no ball and socket action at 

 the neck root joint, but would give a double trot 

 for the body limbs and a double pace for the head 

 limbs. Now, if in such double action a certain 

 amount of lateral curvature — say convex to the 

 left in the rear C C, to the right in the front C C — 

 be allowed in the S S, and this curvature be con- 

 stantly maintained, we shall have the double ac- 

 tion trot of the hind-legs and the double action 

 pace of the fore-legs, modified by a moment of sin- 

 gle action for the legs of either side, as the 

 winding-Hnes form, and in which the right-left 

 counteractions will not at all enter the neck root 

 joint, thus leaving the left fore-leg entirely to the 

 neck action, as in the walk, and the left-right 

 counteractions will enter to only a certain dis- 

 tance, as the partial actions of the left head-con- 

 dyle and right head joint socket carry it. That 

 is, the single actions of the body and of the neck, 

 by which the gatherings of the left hind and left 

 fore-legs begin, are, at their ending, merged in 

 double action with the beginning of the gather- 

 ings for the right side legs, and the right side 

 gatherings again end in single action. 



The whole action of the right hind-leg is, when 

 the rear C C are maintained convex to the left, made 



