348 NAVIN ON THE HOESE. 



commonly but improperly called the spinal marrow, passes 

 out from the brain. 



The hones of the face are eighteen in number. They are 

 named: nasal, or nose-bones, two; superior maxillary, or jaw- 

 bones, two; anterior maxillary, or jaw-bones, two; malar 

 bones, two; lachrymal, or tear-bones, two; palate-bones, 

 two; turbinated bones, four; vomer, one; lower jaw, or infe- 

 rior maxillary bone, one. I shall describe these bones some- 

 what together. First, those composing the orbit, or socket, of 

 the eye ; second, those composing the cavity of the nose ; 

 third, those composing the cavity of the mouth. 



The orbit, or socket, of the eye is a deep cavity formed by the 

 union of the malar hone on the forward and external part, the 

 lachrymal, or tear-bone, forming the base, or bottom, of the 

 orbit, the other portions of the orbit being formed by parts of 

 the frontal and ethmoid bones. 



The cavity of the nose is formed by the nasal hones, which con- 

 stitute its forward and side walls, the cavities being separated 

 by the vomer into two chambers, the vomer standing as a sort 

 of pier under the bridge of the nose. The turhinated hones 

 occupy the back part of the cavity of the nose, on each side, 

 one above and one below. They are chiefly composed of 

 scroll-like scales, and present something of a honey-comb 

 appearance, being traversed by many grooves and cavities. 

 The back outlet or passage into the mouth of the cavity of 

 the nose is formed by the palate-hones, the anterior maxil- 

 lary bones forming the base of the nasal cavity in front. 



The cavity of the mouth is formed by the imlate-hones, which 

 constitute the roof of the mouth. The superior^ or upper, max- 

 illary hones form the upper portion of the sides of the cavity 

 of the mouth. They unite with the temporal, the tear, the 

 nasal, the palate, the malar, the inferior turbinated, and the 

 anterior maxillary bones. Each superior maxillary hone holds 

 six of the jaw-teeth, or grinders. The anterior, or forward j 

 maxillary hones form the forward part of the upjDcr portion of 



