Plate J. 

 Extraction of Teeth. 



Sagittal section through the oral cavity, show- 

 ing plan for extracting the third inferior pre- 

 molar, viewed from within the mouth. 



A Forceps jaws applied to third premolar. 



B Fulcrum resting upon first premolar. 



CC, Plates of mouth speculum resting upon 

 incisor teeth. 



