MARKS ALL GONE 



259 



at the corners more accurately than shown in Fig. 72, 

 then no notch will be formed; nevertheless the upper 

 corner tooth will be slightly concave, though not so 

 marked as shown in the above figure. However, it is 

 seldom that this distinguishing notch is not forming or 



FIG. 73. 



The lower incisor, or nipper teeth of 

 an eight-year-old horse. 



formed on one or the other of the upper corner teeth 

 at the age of seven years. 



At eight years of age, the marks or cups have 

 disappeared from the teeth of the lower jaw. However, 

 slight dark -colored indentations are still present in the 

 corner teeth, but they are not pronounced enough to 

 be called cups. (Fig. 73.) The shape of the teeth has 



