OSTEOLOGY. 



83 



ut'tA Frontal B. 



FIG. 42. 

 Ethmoid bone. 



lone. 



(Outer surface.) 



FIG. 43. 

 Nasal bones. 



yroove for luifal nerve 



(luiier surface.) 



FIG. 44. 

 Lachrymal bone. 



