A NEW OPERATING CHAIR. 



69 



the short patient requires the upper molar teeth to 

 be stopped by the tall operator, whose chair is fixed 

 at a very low level. 



The first object to be gained, therefore, is to be 

 enabled to place the head of the patient, whether he 

 be tall or short, upon such a level as will best suit 

 the height of the operator ; unless this can be done, 



the operator himself must make his own height and 

 position conform to that of his patient ; in other 

 words, he must acquire the mode of balancing him- 

 self adroitly on the top of a footstool, or of bending 

 gracefully on his knees, as the exigencies of the 

 operation may require. 



Contrivances for lessening these serious inconve- 

 niences are various. When the chair with a fixed back 



