162 



each hind-foot is succeeded by its collateral fore- 

 foot. Thus, supposing (1) the right hind-foot to 

 move to the front, then (2) the right fore-foot next 

 moves, and, for an instant, the horse is resting on 

 the two left feet ; (3) the right hind-foot is put 

 down, the horse is on three feet ; (4) the right fore- 

 foot is put down, the horse is on four feet ; (5, 6, 7 

 and 8), the same is repeated, with the opposite side 

 leading. 



§ 147. We should construct the icalk from the 

 elements of locomotion A, B, A' given in § 141, by 

 supposing the action of the primary sections sus- 

 pended in all the anterior hues, and the secondary 

 sections of the posterior lines to be carried only 

 far enough to secure the necessary reactions in the 

 posterior C C C. In this way, the through ball and 

 socket action of the neck-root joint is passed over, 

 and the fore-feet given up almost entirely to the 

 neck action ; the hind-feet to the body action. 

 From this gait the extension of the neck S lines, 

 when they are developing, will produce the pace ; 

 the extension of the ophidian hues, the trot. The 

 passage of the outer and inner edges of the con- 

 dyles will be very imperfectly made, and the pass- 

 age from the anterior to the posterior condyle ends 

 will thus take place with something of a jerk, which 



