422- Dentition as indicative of the Age 
The next illustration (Fig. 32) represents the average condition 
of the teeth in cultivated breeds at three years of age. 
Fig. 32. — Incisors of Ox at three years. 
The fourth pair of broad teeth, the corner permanent incisors, 
are more subject to variation in the time of cutting than the 
third pair. In well-bred cattle they take the place of the 
temporary teeth soon after the completion of the third year, but 
in bulls they are not uncommonly present at two years and ten 
months old, while in some instances they are not cut until three 
years and nine months. Very little reliance indeed can be 
placed on the evidence of the corner incisors, and the examiner 
is compelled to refer to the molar teeth for the purpose of 
correcting his opinion. 
In the succeeding illustration (Fig. 33), the state of the incisor 
teeth in forward animals at three years and three months is 
depicted. 
With the eruption of the corner permanent incisors, the 
fourth pair of broad teeth, the permanent dentition of the ox is 
completed ; and after this period the changes in the form of 
the teeth which are due to attrition will assist the examiner in 
