[ «4 ] 
Forceps for extracting Stones s and other foreign 
Bodies , lodged in the Parti where the common 
Forceps are of no Ufe. Fig. 6. Tab. III. 
The fame Mechanifm juft now defcribcd in the fore- 
going Forceps , may be applied with Advantage to the 
Forceps with which the Stone is pulled out, and to 
other Inftruments defigned for extracting Bullets, 
Splinters of Grenadocs, Pieces of Iron, and other fo- 
reign Bodies. 
There are feveral Cafes in the cutting for the Stone, 
in which no Ufe can be made of the common For- 
ceps : The moft frequent is this 5 when a Stone, laid 
hold by the ordinary Forceps , elcapes from the In- 
ftrument half-way, and fo remains engaged in the 
Incifton. The Expedient commonly taken, is to pufn 
the Stone back into the Bladder, in order to have 
again the necefiary Room for managing the Forceps ; 
But befides the cruel Pain in thus pufhing back the 
Stone into the Bladder, this foreign Body may enter 
into the cellular Texture which lurrounds the Blad- 
der, and lodge itfelf there, and then the Forceps 
not having any longer that Play which was endea- 
voured to procure to them, the Stone will remain in 
that fatal Lodgement, without Poftlbility of pulling 
it out, and the Patient will die. This has been fecn 
many times. 
The Stone having flopp'd in the Paflage of the 
Incifton, you Bide along the Body of it one of 
the Cheeks of our Forctps , A or C, well-oiled, 
which will be done without much Trouble, as I 
have experienced it j the other Cheek afterwards will 
2 pafs 
