NINE YEARS. 



131 



Fig. 139. 



Nine Years (Figs. 137, 138, 139). — These plates nre from the teeth 

 of a horse nine j^ears of age ; the dental cups are of a size and shape 

 representing a A^ounger age. In profile, the incidence of the teeth is 

 seen to be that of a horse five or six 3'ears of age ; the inferior tables ;ne 

 round ; the central enamel incloses small cups close to the posterior 

 border of the teeth. The corner teeth are leveled and rounded ; the 

 dental star is near the middle of the teeth. These characters, added to 

 the freshness of the corner teeth, the obliquity of the inferior incisors, 

 the notch on the upper corners, and the general condition of the subject, 

 are sufficient to rectify au}^ error indicated by the first inspection. 



