24 



Dentition as indicative of the Age 



aries are distinctly marked by the central enamel which surrounds 

 it, forming an elliptical figure which extends almost across the 

 tooth in the direction of its long diameter, and is nearer to the 

 posterior than to the anterior edge. 



The tusks are usually well developed, but their points are 

 not worn, and the hollows on their inner surfaces are well 

 defiued. 



Fig. 15. — Incisors of Horse at six years. 



J 



All the above characters are shown in the illustration 

 (Fig. 15) of the lower incisors of a six-year-old horse. 



At seveii years old the tables of the corner teeth are perfectly 

 formed, and the cavity in each tooth is very shallow. The 

 central enamel, however, is well defined and forms an elliptical 

 figure, which is nearer to the posterior than to the anterior edge 

 of the tooth. In the lateral incisors the central enamel forms a 

 figure which is nearer to the oval than to the elliptical, and the 

 mark, which is very shallow, does not extend so far across the 



