333 



After five years of age the teeth get gradually 

 thicker from front to rear and narrower across, and 

 the angle of their setting increases in proportion. 

 At the same time, horses addicted to biting the 

 manger are apt to unduly wear and break their teeth, 

 and in these cases it is difficult to discover their age, 

 as the natural marks become defaced by such habits. 



.,^ 



CO 



Fig. 67 — TwENTY-Fn^E and Thirty Years Old. 

 a Angle of teeth ; R R Rounded protrusions ; / Length of teeth. 



At about twenty-two years of age the grooves have 

 left the gums and are succeeded by rounded pro- 

 trusions of a dark yellow colour which are very easily 

 observed. When these protrusions extend down the 

 corner teeth about a quarter of their entire length 

 the horse will be about twenty -five or twenty -six 

 years of age, and when they are half-way down he 



