2260 DALD'S VETLKINARY MEDICINE AND SURGERY. 
inches, and, pushing the penis a little on one side, I gradually 
divided the muscular and spongy portion, and exposed the mucous 
membvane of the urethra, when the finger readily detected the 
groove of the staff, into which a small incision was made sufficient 
to admit the bistoire cachée, following which with the index dinger 
of the left hand, the membrane was divided to the rectum. Very 
little blood flowed, and the water of the urethra gushed out. The 
etaff being removed, I easily introduced the small forceps tLrough 
the urethra into the bladder, and grasped the stone, a portion of 
which flaked off. The large forceps were then employed, and, 
my brother holding the handles, I directed the blades upon the 
stone, my left hand being in the rectum. Having placed the 
stone in a proper position, I grasped it with the forceps, and, with 
hoth hands, gave it a half-turn, so as to place its widest axis be- 
tween the pubis and rectum; and thus, with a moderate force, I 
gradually and evenly drew it out, the neck of the bladder readily 
dilating. Two stitches were inserted in that part of the incisicn 
nearest the anus, the lower part being left to itself.” 
SurpREssion OF URINE. 
Suppression of urine signifies that condition in which no urine 
is either secreted or voided. The affection is due to either func- 
tional or organic disease of the kidneys, or it is an accompaniment 
of various forms of disease, and, in such cases, is termed functional. 
For example, I lately treated a horse the subject of jaundice; 
he did not pass a drop of urine for two days. I inferred that 
the kidneys were inactive, and did not secrete urine, therefore he 
had none to pass; but after this period, a slight improvement in 
the disease (jaundice) having taken place, he urinated, yet at first 
only in small quantities. 
When the affection comes on periodically, it indicates organic 
fisease of the kidneys, and, finally, is apt to prove fatal. Wat 
yON says “that if no urine be separated from the blood, coma 
soon supervenes, and death. It is believed that these conse- 
quences result from the detention of urea in the system. Urea is 
a mere excrement, wich, in health, is removed from the blood 
by the kidneys as fast as it enters that fluid. When it is not so 
earried off, it accumulates in the blood. circulates with it to every 
vart of the bedy, and acts as a poison, especially unon the bra’ s 
