DENTITION OF HORSES. 



417 



The central teeth are more distinctly triangular than they 

 were at seven years; the central enamel in these teeth is also 

 triangular in figure. All the tables of the incisors are worn 

 as level as the different degrees of density of the various 

 structures will permit. The cavities are either very shallow 

 or quite obliterated by being filled up, although the central 

 of the tooth tissues in each tooth is perfectly well defined. 



FIG. 12. INCISORS OF HORSE AT SEVEN TEARS. 



The gum of the corner incisors at eight years has lost its 

 circular form and become square. The tusks are more 

 blunted at the tops than in the seven-year-old mouth. 



Fig. 13 shows the condition of the molar teeth soon after 

 two years and a half. A permanent tooth, the first in posi- 

 tion, is seen occupying the place of the temporary molar, 

 which has fallen, and the second permanent tooth is pushing 

 its way up under the second temporary molar, which is only 



