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untouched. Instead of the old tooth key which was 

 so formidable to look at, but so difficult and often 

 impossible to use, he employs a pair of forceps, of 

 which the following wood-cut will give the reader 

 some idea. 



They are about twenty-two inches long, in order that 

 they may be applied, if required, to the most back- 

 ward of the grinders, and of such substance, as 

 renders impossible any springy action which might 

 cause the bite to be lost when the force was applied. 

 As will be imagined, forceps of such dimensions are 

 not to be used by the unassisted hand. The reader, 

 by looking at the end of the handles, will observe 

 that one is comparatively large : the smaller of the 

 two contains within it a female screw, and the other 

 is only a plain eye. To act on these, a cross handle 

 or lever is added, and of this the following is an 

 outline. 



