8 



VETERINARY DENTAL SURGERT. 



lodgment for the molar teeth and presents two sur- 

 faces, two borders and two extremities. The exter- 

 nal surface is convex and smooth and presents an 

 elongated horizontal ridge opposite the fourth and 



FIG. I. 

 LATERAL VIEW*OF THE HORSE'S SKULL. 



I, Pre-maxilla bone; 2, Upper incisors; 3, Upper canine 

 teeth; 4, superior maxillary bone; 5, Infra-orbital foramen; 

 6, Superior maxillary spine; 7, Nasal bones; 8, Lachrymal 

 bone; 9, Orbital cavity; 10, Lachrymal fossa; n, Malar 

 bone; 12, Upper molar teeth; 13, Frontal bone; 15, Zygo- 

 matic process ; 16, Parietal bone; 17, Occipital protuberance; 

 18, Occipital crest; 19, Occipital condyles; 20, Styloid pro- 

 cesses; 21, Petrous bone; 22, Basilar process; 23, Condyle of 

 inferior maxilla; 24 Parietal crest; 25, Inferior maxilla; 26, 

 Inferior molars; 27, Anterior maxillary foramen; 28, Infer- 

 ior canine teeth; 29, Inferior incisor teeth. Ckauveau. 



fifth molar teeth. Above, this ridge is continuous 

 with the Zygomatic spine. The large opening of 

 the infra-orbital canal (Fig. 1-5) opens on the face 

 near the middle of the upper surface. This gives 



