248 



In walking, &c., the movements of the pelvis in its 

 ball and socket action at the diaphragm is met by 

 the action of the head, and then co-adjusts with 

 the ball and socket action of the shoulder-blades ; 

 so that these last (with more or less movement 

 of the arms) regulate eaxih step. In the horse the 

 suspension of the formation of the alternate ante- 

 rior line in the bicomposite spine (A'^) until after 

 the grounding of the free fore-foot, in the trot, is 

 necessary in order to maintain the collateral 

 balance. The same thing occurs in the walk of a 

 man, after (e. g.) the left foot has left the ground 

 and the right foot come down, a moment's delay 

 should take place before the old bicomposite gath« 

 ering on the left shoulder is discharged, and it is 

 the imperfect performance of this which causes the 

 backward hitch of the right shoulder after the 

 right foot has come down so generally seen. 



(c) A well set-up man will experience no diffi- 

 culty in carrying the musket in old way, i. e., 

 balanced on the middle finger of the left hand, the 

 stock supported in the hollow of the left shoulder. 



Having thus gone into the details of the move- 

 ments in the two identical actions of halting and 

 setting-up, it may, we think, be added that they 

 all follow on a continuous movement of holdiag up 



