42 



Dentiiion as indicative of the. Age 



and the permanent teeth will occupy their places, and the animal 

 at the age of three years will have the three anterior molars on 

 each side the top and bottom jaws nearly level with the other 

 teeth, but showing no signs of wear. 



The illustration on p. 41 (Fig. oG) exhibits the three 

 recently cut anterior molars as they appear when the ox is 

 verging on three years of age. 



The eruption of the third pair of permanent incisors may 



Fig. 38. — Incisors of Ox of tioo years and ten months to 

 three years and three montJis. 



occur at any time between two years and six months and three 

 years of age. These teeth are present, as a rule, before the 

 animal is three years old, and occasionally they will be found 

 well developed soon after two years and a half. 



The illustration on p. 41 (Fig. 37) represents the average 

 condition of the teeth at three years of age. 



The fourth pairof broad teeth, the corner permanent incisors, 

 are also subject to great variation in the time of cutting. They 

 take the place of the temporaiy teeth soon after the eruption of 

 the third pair, and they are frequently well developed at two 



