213 
the High Operation for the Stone. 
kind, and yet so mild were the effects of the operation, that 
in ten days the bladder completely recovered its healthy 
actions. 
EXPLANATION OF PLATE XXIV. 
This Plate contains five figures |-rds of their real size. 
Fig. 1. The forceps closed by means of a spring, in which 
state they are to be introduced into the bladder ; the silk net- 
bag in a collapsed state. 
Fig. 2. The forceps opened by pressing the spring handles, 
and the silk net-bag extended to receive the stone, upon which 
the forceps are allowed to close, by removing the pressure 
from these handles. The stone by falling to the bottom of 
the bag, becomes lower than the bent point of the forceps, 
and does not require an opening larger than itself to admit 
of being extracted. The stone is to be pulled out by the 
upright handle. 
Fig. 3. The representation of a portion of the penis with 
the catheter in the urethra, which is prevented from coming 
out by the retainer applied round the penis. 
Fig. 4. The flexible gum catheter of the proper length to 
reach the lower posterior part of the bladder. 
Fig. 5. The catheter retainer detached from the penis. 
MDCCCXX. 
Ff 
