[ 4°3 ] 
it be made longer, it mud carry the Incifton as far 
as into the Proftate. 
The Manner of performing the Operation. 
I-TAVING placed the Patient as ufual, I pafs an 
*• -*• hollow Catheter into the Bladder, thro’ which 
I half-in je<ft the Bladder ; becaufe I have found, that, 
as a moderate Injedion renders the Operation more 
fpeedy and fafe, fo a complete Injedion forces back 
toward the Reffum the Place appointed for the In- 
cifion, and makes the Operation laborious and dan- 
gerous. * 
When I have made the Injedion, I draw out the 
hollow Catheter , and pafs in my new Stair by half 
a Turn } which I make very fhort, upon account of 
its little Convexity. I pufh it to the Bottom of the 
Bladder ; and when I am quite fure it is there, I give 
to the moveable Piece b C, the Situation requifire to 
make the Protrufion anfwer the Places where I in- 
tend to open the Body of the Bladder. 
The Places which I have chofen in the Trials 1 
have made of this Method are two; the firft is be- 
tween the two Vefculre feminales, clofe to the left, 
under the Orifice of the left Ureter ,• the fecond is 
above the Orifice of the Ureter , and over the left 
Vefcula feminalis. 
For doing the Operation purfuant to the firft In- 
tention, when my Staff is in the Bladder, I keep its 
Rings exadly in a horizontal Pofition, fo that the 
moveable Piece b C may bear diredly on the Line* 
which may be imagined to pafs between the Orifices 
of the Ureters . In this Situatioiij I loofen the Screw 
3, ' “ whidu 
