64 ANIMAL DENTISTRY. 



Lateral Incisor — ^Reaches the alveolar margin at two 

 years and erupts at two and a half years. 



Intermediate Incisor — Reaches the alveolar margin at 

 three years and erupts at three and a half years. 



Corner Incisor — Reaches the alveolar margin at four 

 years and erupts at four and a half to five years. 



First Molar — Reaches the alveolar margin at one year, 

 expels the temporary shell at one and a half years and be- 

 comes concerned in mastication soon after. 



Second Molar — Reaches the alveolar margin at two 

 years, expels the temporary shell at two and a half years 

 and gains the level of the first molar a month or two later. 



Third Molar — Reaches the level of the alveolar margin 

 at three years, expels the temporary shell at three and a 

 half years and gains the table level at about four years. 



Fourth Molar — Erupts at nine months and becomes con- 

 cerned in mastication at ten to eleven months. 



Fifth Molar — Erupts at two and a half years and gains 

 the table level several months later. 



Sixth Molar — Erupts between the ages of four and five 

 years. As in the horse, its outward progress is hindered by 

 the hardness of the jaws at that age. 



CARNIVORA. 



Central Incisor — Erupts at three to four months. 



Lateral Incisor— Erupts at three to four months. 



Corner Incisor — Erupts at five to five and a half months. 

 Canines — Erupt at five to six months, common to both 

 sexes. 



First Molar — Erupts at three months, and has no tem- 

 porary predecessor. 



Second Molar — Erupts at five to six months. 



Third Molar — Erupts at five to six months. 



Fourth Molar — Erupts at five to six months. 



Fifth Molar — Erupts at four to five months. 



