THE TEETH. 



231 



FIG. 58. 



FIG. 59. 



vex than the incisors, and the posterior 

 more irregular, and possessing a larger 

 tubercle near the neck. The roots are the 

 longest of all the teeth larger than the 

 incisors; single, but marked by a groove, 

 showing an attempt towards the double 

 root 



The roots of the upper canines are 

 seen to extend into the nasal process of 

 the superior maxilla, above the floor of 

 the nostrils and those of the lower are 

 found to descend about one half of the 

 depth of the lower jaw, and to be mid- 

 way between the anterior mental fora- 

 men and the symphy-sis menti. The supe- 

 rior edge of the upper canine is greater 

 than that of the lower, the former being 

 estimated at about four 

 lines, the latter about 

 three and a half. The 

 upper canine is larger 

 than the lower, mea- 

 suring about thirteen 

 lines to the crown is 

 given six lines for its 

 length, and to the root 

 seven lines. The root is 

 not unfrequently found 

 curved or undulating. 



The canine presents 

 on the middle of its 

 anterior surface a ridge 

 which ends on the summit in a cusp. On either side of 

 this middle ridge, two other ridges are seen but not ter- 



FIG. 58, a a View of the Cuspids, or canine, from before; b b View of 

 the same from behind ; c c Side view. 



FIG. 59, aaaa View of the Bi-cuspids from without; b b b b View from 

 within ; c c c c Side view. 



