PLATE II. 



FIG. 1 represents the proper oblique position of the 

 shoulder blade. C marks the center of its 

 motion. A and B give the extent of its mo- 

 tion ; E, the point of elevation of the lower 

 part of the shoulder when it is advanced. 



Fig. 2 represents a shoulder blade more perpendicular 

 in its position ; A and B, the extent of its 

 motion; E, the point of elevation, which is 

 not so high, nor so extensive, as in fig. 1. 



