582 Dr. Hamilton’s Account of a 
the operation was performed in the following manner. 
Having placed the patient on his back on a bed, with his 
breech projecting a little over the fide of it towards the 
light, and his legs bent into the pofition they are j 7 laced 
in for the operation of lithotomy, and held by two af~ 
fiftants, a trocar of the middle fize, with its point 
guarded by the extremity of the fore-finger well oiled, 
was introduced into the anus, until the tip of the finger 
reached the anterior part of the tumor ; when the finger 
being a little withdrawn, and the point of the inflrument 
brought into contaCt with the tumor, it was plunged into 
it, in a direction parallel to the axis of the bladder, in an 
ereCt pofture; and the perforator being pulled out, the 
water immediately followed. A ftraight catheter was 
’quickly introduced through the canula into the bladder, 
left, as it collapfed and fhrunk upwards as the water was 
•difcharged, thecanula fhould prove too fhort, for its fhell 
was then clofe to the anus . The canula was then flipped 
out of the aperture as far as the rings of the catheter, as 
being no longer of ufe, and the catheter remained in 
the bladder until the urine was all drawn off; during 
which time, that instrument was moved different ways, 
to fearch for the ftone which was fuppofed originally to 
have occafioned the diforder ; but none was to be found. 
The water being difcharged, the catheter was taken out, 
and the patient put to bed. The parts were repeatedly 
fomented ; and a draught, with half a drachm of nitre 
and 25 drops of laudanum were given, and two more of 
the fame kind were ordered for the night, 
26th, 
