ANIMAL DENTISTRY. 



29 



of the same shape. The base of the pyramid, which repre- 

 sents the crown, is elliptical, and measuring toward the apex 

 it becomes first oblong, then triangular, then rounded and 

 finally biangular in the antero-posterior direction. At the 

 table it presents the external enamel dentine, internal 

 enamel, and infundibulum. The labial and lingual surfaces 



Fig. II. Fig. 12. 



Canine Tteth of a Horse, Buccal Sur- Canine Teeth of a Horse, Lingual 

 face. Surface. 



Fig. 1-3. 

 Longitudinal Sections Through Incisor Teeth. 



are covered with enamel which in youth is uninterrupted 

 with encrustations of either tartar or crusta petrosa, and is 

 of a bluish-white color. At the apex it presents a wide open- 



