of the Animals of the Farm. 



11 



the morning of its birth, from a cart-colt foaled at the Royal 

 Agricultural College Farm. 



By the end of the second: week after hirth, the central incisors 

 will be fairly in the mouth, and in six or eight weeJcs the 

 lateral teeth, and also the temporary molars, are well up. 



In the illustration on p. 12 (Fig. 4) the state of the incisor 

 teeth at two months old is shown. The central incisors at this 

 age have the surfaces very slightly worn, and the cavity or in- 

 fundibulum is not surrounded by a line of worn structure ; only 

 the anterior edges of the teeth have yet been subject to attrition. 

 In the lateral incisors the wear is confined to a small portion of 



Fig. 3. — Incisors of Colt at hirth. 



the anterior edge which is nearest to the central teeth. These 

 appearances are indicated in the drawing (Fig. 4). 



Between tivo and six months old the central and lateral in- 

 cisors increase in size with the growth of the animal. At six 

 months old the mouth has a very neat and compact appearance. 

 The centrals and laterals are well developed, and their anterior 

 edges are worn level. The posterior edges are, however, still 

 rather below the anterior, and the table, therefore, is not per- 

 fectly formed. The drawing on p. 13 (Fig. 5) was taken from 

 the mouth of a cart-colt at the age of six months. 



Soon after seven months, indications of the cutting of the 

 corner teeth may often be seen, and in many instances the 

 points of the teeth will be observed pricking through the gum. 



