Pi, ATE I. 

 Extraction oif 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 up- 

 on incisor teeth. 



