18 



Dentition as indicative of the Age 



it is most probable that the state of the lateral temporary incisors 

 will show that they are about to be shed, a fact which will add 

 materially to the evidence. 



These appearances of the incisors are shown in the next 

 illustration (Fig. 10), which was taken from the mouth of a 

 colt on the completion of the third year. No difficulty ought 

 to be found in recognising the three-year-old mouth at a glance. 

 The fully developed permanent incisors are seen in striking 



Fig. 10. — Incisors of Horse at three years. 









contrast to the temporary teeth on each side of them, and can- 

 not easily be overlooked. 



During the development of the central permanent incisors 

 in the course of the third year, an important change is going on 

 in the first and second molars, the fangs of which are gradually 

 absorbed as the permanent teeth push their way up underneath 

 them. 



It has already been stated that these teeth do not follow 

 the rule by coming up singly at intervals of a year, but advance 



