AGE OF THE HORSE AS SHOWN BY THE TEETH 85 



filling up, and in some cases have disappeared. 

 In most mouths at this age the posterior margin 

 of the upper corner incisor projects in a down- 

 ward direction, and when this projection is 

 present, the examiner may be certain that the 

 animal he is looking at is seven years off, for it 

 is seldom, if ever, seen previously to the horse 

 having passed its seventh year. The infundi- 

 bulum of the corner incisor is now surrounded by 

 a flat surface. 



Eight Years Off, — At this age the gum of 

 the bottom corner incisor has become quite 

 square, and the tush of the lower jaw blunted. 

 The table of the corner incisor is quite com- 

 pleted and the infundibula nearly entirely 

 obliterated. The tables of the central incisors 

 are getting angular in shape, and those of the 

 lateral incisors are following suit. The in- 

 fundibula are frequently obliterated ; but, as a 

 rule, those of the lateral and corner incisors are 

 still present in a more or less marked degree. 



After the eighth year, at which period of its 

 life the horse is termed aged, there is no certainty 



11 



