36 



ELEMENTS OF HIPPOLOGY. 



Figure 26. — The Tables at Nine. 



The central enamel is still present in all the teeth, although 

 the discolored portion is usually worn off in the center teeth. 



At eight the mark is gone from all the teeth, although the 

 corners are still discolored and the central enamel is found in all 

 of them. The line of the dental star is better defined in the 

 center teeth. The tables are more rounded than before and the 

 line joining their centers is a flatter curve than in the younger 

 mouths. A comparison of Figures 22, 23, 24, and 25 will show 

 the gradual flattening of this curve. 



Viewed from the side, the angle of meeting of the teeth has 

 erown much more acute than at seven. 



o 



The principal test to be used in distinguishing between an 

 eight and a nine-year-old mouth is to see whether the central 

 enamel is gone frogy^^^^ryj^^^g/^ it is still present, the 



