BONES OF THE HEAD 1 65 



name which is given to this by these unprincipled 

 men is ' pitffing the glims' 



e, e. The frontal bones, or bones of the forehead. 



The frontal bones are articulated together by a 

 curious and very intricate dove-tailed suture, which 

 gives great strength, so as to defend the upper 

 portion of the brain, which lies immediately below 

 them, from injury. The frontal bones strongly 

 manifest the breed or blood of a horse. Those 

 which are high-bred have a broad angular forehead, 

 with the face gradually tapering from the brow to 

 the muzzle, as represented in this figure. The 

 cranium of the dray or cart-horse is nearly as wide 

 below as above. It is the full and largely developed 

 forehead which gives to the blood-horse that fiery 

 and intelligent expression. 



f^f. The zygomatic arch. 



g^ g. The super-orbital foraminae, or holes above the orbit for 

 the passage of the nerves and blood-vessels which 

 supply the forehead. The small hole beneath 

 receives vessels which penetrate into and supply the 

 bone. In some craniums there are several such 

 holes. 



h^ h. The lachrymal, or tear-bones. 



2, i. The orbits which contain and defend the eye. 



y,y. The malar, or cheek-bones. 



k^ k. The nasal-bones, or bones of the nose. 



/, /. The superior maxillary, or that portion of the upper jaw 

 containing the molar teeth or grinders. 

 m, 171. The infra-orbital foraminse, or holes below the orbits, 

 through which pass branches of nerves and blood- 

 vessels to supply the lower portion of the face. 



71, n. The openings into the nose, with the bones forming the 

 roof of the palate. 



0, 0. The inferior maxillary, the lower portion of the jaw- 

 bone, which is a separate bone in quadrupeds, contain- 



