TWO YEARS. 



The above is the mouth of an underbred two-year-old which has 

 been fed on soft food, and whose teeth are, consequently, not much 

 worn. The central enamel in the middle incisors of the upper 

 jaw, now forms a complete ring. It, also, as a rule, does so in 

 those of the lower jaw. These rings of enamel may be seen 

 ■complete in the front and middle incisors of advanced animals of not 

 more than twenty months old ; but, in their case, the front incisors 

 will not be " started " by their replacing teeth, as may be seen in a 

 two-year-old mouth. 



ABOUT TWO AND A HALF YEARS. 



The front milk incisors — commencing, usually, in the upper jaw — 

 fall out, one by one, and are replaced by permanent teeth ; the 

 period occupied in this process, varies from six weeks to two 

 months. 



