THE MUSCLES OF THE UPPER EXTREMITY. 77 



must call attention to one other fact in regard to this 

 third pectoral, and that is this : after having dissected 



FIG. 26. Superficial muscles, anterior aspect, of the upper extremity, as far as 

 the elbow, of a Raven. Drawn life-size by the author from his own 

 dissections. All of these muscles are in their normal positions, but the 

 size of the figure did not admit of showing the insertions of the tensor 

 patagii slips, though their proximal moieties are shown in their proper 

 positions. 



away the pectoralis major, in nearly all specimens, the 

 outer margins of the second and third pectorals appear 



