54 



THE MYOLOGY OF THE RAVEN. 



origin seems to be upon the lacrymal and maxillary 

 bones (Fig. 22, o,p.). Superiorly the circumscribing 



T.CJC. 



FIG. 20. Superior aspect of head of Raven, with skin oil right side dissected 

 away, and the roof of the orbit removed, to show muscles of eye within. 

 Life-size, by the author from his own dissections, ob. inf., obliquus 

 inferior; ob. sup., obliquus superior; r. int., rectus interims ; r. ex., 

 rectus externus ; r. sup., rectus superior. 



fibres become very indistinct, in which locality they are 

 inserted directly into the ciliary margin. Below, they 

 are attached to the lower free edge of the tarsal cartilage, 



