24 LESSONS IN HORSE JUDGING. 



surface, say throngli the line Ell tlien you see 

 on the surface of such a section in their order either 

 way : — 



Enamel : Dentine : Enamel : I Enamel : Dentine : Enamel. 



And you must remember the 'enamel' is white, 

 and the ' dentine' gray. Now see if you can make 

 out these in Fig. 4, Z>, which shows four sections 

 of a tooth, such as we made at (^11). Notice the 

 four sections of this tooth, and you see in the top 

 section the appearances we have described very 

 distinctly. You see the outer rim of white enamel 

 which is called encircling enamel : then a broad 

 circle of gray dentine : then a small circle of 

 enamel called the central enamel, and this encloses 

 the black material in the centre. So much for 

 the top section, but before drawing your attention 

 to the three sections below, I must first tell you 

 that a nipper tooth gets gradually narroiver from 

 the cutting surface to the end of its fang, and whilst 

 at its largest, from five or six years old to seven or 

 eight, its upper cutting surface is somewhat ovoid, 

 with the long axis from side to side having two 

 sharp angles in front at either end. From this 

 ovoid form it gj-adually becomes triangular, and it 

 only remains to add that the depression in the tooth 

 filled up by black material only reaches a little way 

 down the tooth, and then you will be able to refer 

 to the three lower sections of Fig. 4, Z>, to see 

 the change in the aspects of the marks themselves 



