302 



DENTITION AND AGE AS SHOWN BY TEETH, ETC. 



At this time another pair of grinders in each jaw make their 

 appearance, thus making four in each jaw on each side, or six- 

 teen altogether. 



At the age of two years (see Cut No. 2) the middle pair are 

 quite smooth, and the next pair present very nearly the same 



marks the first did at one year old ; the 

 corner ones having a faint mark. About 

 this time also a fifth pair of grinders in 

 each jaw make their appearance. 



In the spring, before the colt arrives 

 at three years of age, he will shed 

 the front pair of nippers in each jaw. 

 The gum will have the appearance of 

 receding, and very soon the old tooth 

 will be absorbed and the new tooth will appear in its place as 



if it had poked the old one out. 

 This is called the three-years- 

 old mouth. (See Figure 3.) The 

 two middle nippers not grown 

 to their full length. The upper 

 pair of front nippers are usu- 

 ally cast first. "While these 

 new teeth are growing the colt 

 sometime experiences some diffi- 

 cult}^ obtaining sufficient food by 

 grazing, and if so he should be fed grain. 



Figure 4 represents the four- 

 year-old mouth. The center nip- 

 pers are now fully grown. The 

 front edges, which were sharp ) 

 are somewhat blunted, the mark 

 in them becoming short and nar- 

 row. The next pair are now 

 full grown, but smaller than the 

 middle or corner ones. The 

 corner ones are smaller than 



