32 



Dentition as indicative of the Age 



must be very gradual, and to distinguish the slight difference 

 between the groove of ten years and the groove of eleven years 

 is possible only to an expert who has devoted himself to the 



Fig. 23. — (6) Groove reaching half-way down the corner Incisor at 

 ffteen to sixteen years old. 



study of the subject, and has had numerous opportunities of 

 correcting his observations. 



Fig. 24. — (c) Groove extending the whole length of the corner Incisor 



at twenty -one years old. 



From the account which the originator of the system gives 

 of his successful attempts to define the exact ages of old horses 

 whose exact ages were known to his interrogators, the reader may 



