FARM AI^^IMALS. 37 



2 years : Permanent pinchers cut. 



2j to 3 years : Permanent first intermediates cut. 

 3^ years : Second intermediates or laterals cut. 



4 years : Corner teeth replaced. 



5 to 6 years : Leveling of permanent pinchers. 



7 years : Leveling of first intermediates. 



8 years : Leveling of second intermediates. 



9 years : Leveling of corner teeth. 



10 to 12 years: Dental star in pinchers and intermediates. 

 13 years : Dental star in corner teeth. 



Sheep.- — Sheep have 20 temporary and 32 permanent 

 teeth. The table for changes is as follows : 



1 month : Milk incisors appear. 



3 months : Milk incisors decayed on border. 

 15 months : Permanent incisors cut. 



2 years : First permanent intermediates cut. 



33 months : Second permanent intermediates cut. 

 40 months : Corner teeth cut. 



Hogs. — Hogs have 28 temporary and 44 permanent teeth. 

 The table for changes is as follows : 



At birth : Temporary corner incisors cut. 



I to 2 months : Temporary central incisors cut. 



3 months : Temporary lateral incisors cut. 



9 to 12 months : Permanent corner incisors cut. 

 12 to 15 months : Permanent central incisors cut. 

 18 to 20 months : Permanent lateral incisors cut. 



