54 



THE MYOLOGY OF THE RAVEN. 



origin seems to l)e upon the lacrynial and maxillary 

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



.. S 



t^r 



Fig. 20. — Superior aspect of liead of Raven, with skin on rii^lit side disftocted 

 away, and the roof of the orhit removed, to sliow muscles of eye witliin. 

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

 inferior; oh. sicp., obliquus superior; r. int., rectus internus ; r. ex., 

 rectus externus ; r. siop., rectus sujjcrior. 



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, 



