TEE MOUTH. 



429 



Their free part presents, in the virgin tooth, three tubercles : a njiddle, which is the 

 strongest, and two lateral; these, together, are not unlike a trefoil oc the upper part of a fleur- 

 de-lis, especially those in the upper jaw. On the internal face is remarked a table or slope, 

 somewhat resembling that of the Ox and Sheep, and separated from the root by a very distinct 

 b irder, the extremities of which mark tiie lateral lobes. This table is of no advantage in 

 ascertaining the age. 



The root, very developed, flattened on both sides, and separated from the free portion by 



Fig. 239. 



GENERAL AND LATERAL VIEW OF THE OOG S TEETH. 



a well-defined neck, is solidly encased in a deep alveolus. Its internal cavity is very promptly 

 obliterated. 



When the tooth is submitted to wear, the middle lobe is the first to disappear ; so that it no 

 lorger resembles a trefoil (Fig. 240). 



The temporary incisors are mucii smaller and more pointed than the permanent ones; yet, 

 like them, they show lateral lobes. At the period of their eruption these teeth are somewhat 

 wide apart. 



The fangs, or canine teeth, two in each jaw, are very strong, elongated organs, conical in 

 form, curved backwards and outwards, and placed immediately after tlie iufisors. 



Fi?. 240. 



Fig. 241. 



ANTERIOR Vli;'\ n\ mi, 1NC1.M)I:< AND CANINE 

 TEETH Oh- A VEAR-OLD POG. 



lateral and general view of the 

 cat's teeth. 



The upper fangs are the thickest, and have a small space between them and the corner 

 incisors, in which the inferior canines are lodged. 



These teeth are deciduous, like the incisors, and are distinguisiied from the replacing ones 

 by being thinner and more elongated. 



