THE BEAD. 

 inthirctur^^"^' '''^'' '"' *'^ "^"'™°^ "^^*^*^^^' -^ ^- «-t-ed 



above toi-elow, and from iX oSvard^on th^^^^^^ ^^-"^ 



temporal fossa is limited, within, by the parill rfl? 5' ''r'^"J' *^^ 



Ses 'oraloVt rnf' '!r?r'/ notches^Td the eon: 



^Mmwiii—Pormed by the premaxiUary bones and the body of the super- 

 Fig. 26. 



LATERAL VIEW OF THE HOESE S SKULL. 



1, Premaiillary bone ; 2, Upper incisors ; 3, Upper canine teeth ; 4, Superior 

 maxillary bone ; 5, Infraorbital foramen ; 6, Superior maxillary spine ; 7, Nasal 

 bones; 8, Lachrymal bone; 9, Orbital cavity; 10, Lachrymal fossa; 11, Malar 

 bone; 12, Upper molar teeth; 13, Frontal bone; 15, Zygomatic pi'ocess, or arch; 

 16, Parietal bone; 17, Occipital protuberance; 18, Occipital crest; 19, Occipital 

 condyles; 20, Styloid processes; 21, Petrous bone; 22, Basilar process; 23, 

 Condyle of inferior maxilla; 24, Parietal crest; ^5, Inferior maxilla; 26, Inferior 

 molars ; 27, Anterior maxillary foramen ; 28, Inferior canine teeth ; 29, Inferior 

 incisor teeth. 



maxilla, the summit supports the incisor teeth, and presents a tuberosity 

 more or less rounded, according to the age of the animal. In front, it is 

 surmounted by the external opening of the nasal cavities ; this opening, 

 which is comprised between the external process of the premaxillary bones 

 and the nasal spine, is divided in the fresh state into two orifices which 

 constitute the nostrils. 



Internally, the head contains the naial fossae and the cranial cavity. 

 These will be described when the apparatus belonging to them is noticed. 

 (See the respiratory and nervous apparatus^, 



DIFFEEENTIAL CHAKAOTBRS OF THE HEAD IN OTHER THAN SOLIPED ANIMALS. 



A. Head of the Ox, Sheep, and Goat. — 1. Occipital bone. — Tfhe occipital bone in 

 these animals docs not show any anterior elbow. The cervical tuberosity, or occipital 



