144 



tlirougli the sternum, and then of the ophidian ; 

 THE WALK, as commencing ivith the ophidian, hut 

 not extending regularly, the neck-root working 

 being only partially performed ; in fact, as being a 

 trot with the hind-legs and a pace with the fore. 



As to the gaits of double action we shall con- 

 sider tJie SQUARE JUMP, which may form a species of 

 gallop, to be a double trot ; the " full run " to be 

 a double pace ; the canter to be a mixture of the 

 trot and pace, which is finished in each spring by 

 double action. 



DETAILS OF THE TROT. 



§ 141. Let us, as usual, suppose the left anterior 

 winding-line to be the leading one, we will mark 

 the developments by the following symbols : 

 A for the original anterior windmg-line. 

 " posterior " 



alternate anterior " 



secondary section of the anterior line, 

 primary " " " " 



secondary " " posterior " 



primary " " " " 



a' and b' for the ophidian spine, 

 a^ " b' " " composite " 

 a'^ " b^ " " bi-composite " 



