40 



ANIMAL MANAGEMENT. 



At one 

 year. 



At two 



years. 



At one year the whole of the temporary incisors are in wear, the 

 corner tooth being little worn and looking "shelly," z>., the inner side of 

 the tooth not yet grown up level with the front. 



At two years to two years and three months there may be some sign 

 of the centrals giving place to the permanent teeth which are to succeed 

 them. The gum may be red and swollen and the teeth loose. 



Fir. 9. — l-ivej^ears. 



At 2 years, At two years and six months \\\^ central permanent incisors appear 



6 months, and at three years they are in wear. 



At 3 years, At three years and six months \\i^\'\'it.x-d\ permanent incisors are cut 



6 months, and at four years are in wear. 



At 4 years. At four years and six months the corner permanent teeth are cut and 



6 months. diX five years are in wear, but not full)'. 



