IRREGULAKITIES OF THE TEETH. 



101 



Two of the incisors in Fig. 25 have two dental cavities 

 each. 



Irregularities in the length of the croims of the incisor 

 teeth. — M. G-irard states that, as a rule, the crowns of the 



Fig. 24. 



front incisors, measuring from the gum to the table, are 

 about -70 inches long; the middle ones, '59 inches; and 

 the corner, • 51 inches. Pessina {Sul moclo di conoscere dai 



