( 95 ) 



CHAPTER YII. 



lEKEGULARITIES OF THE TEETH. 



Teeth which retain the mark and central enamel beyond the ordinary 

 time — Irregularities in the respective size of the upper and lower 

 jaws — Irregulaiities in the namber of the incisor teeth — Irregu- 

 larities in the form of the incisors — Irregularities in the length 

 of the crown of the incisors — Abnormal wear of the teeth from 

 crib- biting — Bishoping. 



Teeth ivMch retain the marh and central enamel beyond 

 the ordinary time. — The depth of the dental cavity on 

 the tables of the incisor teeth, varies considerably in 

 different horses, and, even, in particular pairs of teeth, in 

 the same mouth. The thickness of the layer of cement 

 lining these cavities, is, also, as we have seen on page 

 82, subject to much variation. Hence, it is not at all 

 uncommon to meet with mouths, the " marks " in which 

 indicate that the animal is " younger " than he really is ; 

 that he is " younger " on one side of his mouth than on 

 the other; or, that one or more teeth retain these 

 cavities to an unusually late period. The varying 

 hardness of the teeth themselves, and that of the forage, 

 naturally contribute to irregularity in the amount of 



