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Rau did not cut into the Body of the Bladder 5 be* 
caufe, with fo broad an Inftrument, and the little 
Precaution he ufed, as we have already feen, he 
would never have fucceeded ; but likewife this broad 
Inftrument gives me a violent Sufpicion, that this 
Lithotomift did not fo much as cut into the Neck 
of the Bladder ; and that he only laid it open, as 
is the Practice in that mafterly Operation with the 
greater Apparatus executed in Mr. de la Peyronies 
Manner : For it is well known what Precaution mud 
be ufed in the feveral lateral Operations, to remove 
the Reffium from the Proftate and the End of the 
Urethra , in order to cut thefe Parts without touch- 
ing the Gut. Wherefore, in all the feveral Ways of 
the lateral Operation, not only the Fore finger of the 
left Hand of the Operator is neceffary, but alfo, as 
I have juft now faid, it is requifite that the Finger 
of an Afliftant, or an Inftrument introduced into the 
Anus , Ihould contribute to keep off this fame Gut. 
Whether Mr. Rau open'd the Body of the Bladder 
or nor, his Difciplcs believed he did : And as they 
were Witneffcs to the great Succefs of their Mafter, 
they have not failed to conceive and give the Public 
an high Opinion of a Method of Cutting which 
opened the Body of the Bladder with all the Safety 
that could be expe&ed from a true Method. The 
Trials made in England having failed of Succefs, it 
was pretty natural in France to think, that the Per- 
fons, who made thefe firft Trials, had not light on 
the true Manner of making this Opening, fo greatly 
cried up, and fo much defired. Monfieur Foubert , 
Surgeon of Paris, flatter'd with thefe Hopes, added 
to the common Inftruments for Cutting, the grooved 
E e e Trochart 
