C 40s ] 
rally lays open no more than the common Integu- 
ments: Then, with the Fore finger of my left Hand, 
I feel for the Elbow of my Staff ; and on this Elbow 
I cut upward and downward} firft, the Septum , 
formed by the Kiev at ores Ani\ fecondly, the liga- 
mentous Lamina that fupports thefe mufcular Ex- 
panfions, and which, without an accurate Knowlege 
of thofe Parts, may be eafily miftaken for the Blad- 
der. Thefe Obftacles being well removed, the Elbow 
of my Staff becomes more and more difengaged, and 
the End of the Proftate and Beginning of the Bladder 
are laid bare. Then, being certain of the Place I 
am at, I fed again for the Elbow of my Staff : I fet 
it right, if the Affiftant has let it flip from its due 
Pofttion, and on it I plunge the Knife into the Bladder, 
fo as that its Point runs on the Outfide, and the whole 
Length of this Elbow, and the great Edge B, Fig. 3. 
faces the pofterior Part of this Organ. By this Inci- 
fion I cut into the Bladder an Inch long or more, if 
I think proper, a Finger’s Breadth from its Orifice, 
under and clofe to the left Vejicula feminalis , and the 
Orifice of the left Ureter. 
I had caufed a Groove to be made on the pro* 
jeding Piece C, Fig. 2. to dired my Knife, but I 
found it of no Ufe. On the Groove of my Knife, 
now in the Bladder, I Aide the Gorget } and then the 
Affiftant, who held the Staff, loofens the Screw, draws 
the King of the Piece B , whereby the Staff is brought 
back to its former Shape, as in Fig. 1. and then he 
draws it out of the Bladder. The reft of the Opera- 
tion is perform’d in the ufual Manner. 
In order to open the Bladder above the left Vefi~ 
cula feminalis with the fame Staff, as foon as it is 
F f f in 
