174 THE DOG IN HEALTH. 



eruption is fairly constant. The larger breeds and bitches 

 get teeth earlier by a little than smaller breeds and dogs. 

 It may be said that, in general, the front teeth or incisors 

 appear before the back teeth or molars, though the tooth 

 actually erupted first is usually the lower middle molar, 

 and at about the eighteenth to the twenty-second day. 

 Then follow, after one to two days' interval, the incisors 

 i. e., " nippers," " intermediates," and " corner teeth " 



Fia. 10. GENERAL AND LATERAL VIEW OP THE DOG'S TEETH (CHAUVEAU). 



in the order indicated, though this is not constant; and 

 the interval between their appearance may be inappre- 

 ciable, so that they often seem to erupt at once. At about 

 the same time the canines (tusks) appear. The first and 

 third molars are cut about the fourth week, and in a 

 couple of days later the middle upper molar pushes its 

 way through ; next comes the last upper molar, and then 

 the first upper molar, so that Jy the fifth week the whole 

 of the milk-teeth may be through the gums. 



