The groove allnded to will be found on the corner tooth of th« 

 npper jaw, running down the middle of the tooth. When a 

 horse is from fourteen days to six years old, 1 judge by the 

 appearance of both jaws ; when from six to ten years, by the 

 lower jaw, and when from ten to twenty-one years, hy the groove 

 m the npper jaw. The above is the only true Bystem in the 

 vorld, to my knowledge, for telling a horse's age. 



Gleason's Practical Ulustrations of the Age of tlia 



Horse. 



•'>/-* 



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