52 



LIVE-STOCK JUDGING 



wear out, the notch on the upper corner appears and the 

 incisive arch or the angle made by the teeth as they meet 

 becomes more acute (Figs. 27 and 28) . 



Eight years. The cups wear out of the corners, the 

 pinchers and intermediate teeth become oval in shape, and 

 show the dental star, upon their table (Figs. 29 and 30) . 



FIG. 33. Shows the wear of an incisor tooth at the ages of three, four 

 five, six, nine and twenty years, and why the cups, or marks, dis- 

 appear as age advances. The lower nippers wear away about one- 

 eighth of an inch each year. The upper incisors wear away more 

 slowly. 



Nine years. The notch on the upper corners may have 

 disappeared, the pinchers are round, and the corner teeth 

 oval. The upper pinchers show wear, and the angle of 

 the incisive arch is more acute. 



Ten years. The cups of the upper pinchers are 

 worn out and the angle at which the teeth meet has be- 

 come so acute as to necessitate raising the horse's head 

 in order to look by the upper teeth to view the lower 

 pinchers. 



