LIVE-STOCK 



129 



Teeth indicating age. 

 (Appearance of temporary incisors.) 



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1 week. 



2 weeks. 



3 to 4 weeks. 

 (Appearance of permanent incisors.) 



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a: 



Temporary premolars 



1 year 6 months. 



2 years. 



2 years 6 months. 



3 years. 



(Appearance of molars.) 

 2 to 4 months. 



Permanent premolars. 



\ 



t. 



FT 



l 



3 months. 



9 months. 

 18 months. 



18 to 24 months. 



