492 
V ETE RINA II Y GBST ET R I C Y. 
it assumed the form of a peduncle. Its surface was red, soft, and 
chapped in various places. At the base on each side was a little 
nipple-formed opening, whence, every five or six minutes, there 
escaped a white fluid, somewhat thickened, which I considered to 
be the urine, and these openings to be the ureters. I immediately 
recognized the tumour as an inversion of the bladder. When I 
attempted manually to examine it, the mare struggled violently, 
and threw herself down, and there ensued a violent distention and 
bruising of the tumour. It became more profoundly chapped in 
various places, in a direction from above downwards, and through 
the whole length of the tumour ; and, in the course of five or six 
minutes, five or six pints of blood were discharged. I washed it 
with vinegar and water to no purpose. I then had recourse to 
pure vinegar, and the hemorrhage ceased. 
The mare being raised, and more quiet, I proceeded to the 
reduction of the tumour. I caused it to be supported by an 
assistant, and by gently pressing on its sides and inferior ex- 
tremity with my finger and hand, I succeeded in completely 
returning it. I continued to hold my hand firmly pressing on 
the base of the bladder for nearly half an hour ; and the mare 
being quiet, and I plainly feeling the contraction of the sphincter 
on my arm, hoped that the bladder would retain its petition without 
the aid of a pessary. 
At length I gently withdrew my hand from the meatus uri- 
narius, being assured that its neck contracted more and more. 
I ordered the head of my patient to be tied up for four hours, pre- 
scribed for her a very restricted diet, and left her. No untoward 
accident happened to her afterwards, and she was sold, four months 
subsequently, at the fair of St. Loo; after which the owner lost 
sight of her. 
I would observe, that this reduction was accomplished much 
more easily than 1 had supposed that it would have been, and 
without any injury to the neck of the bladder. 
It is generally supposed that, to have any chance of re-inverting 
the bladder, we must attempt its reduction early ; but from the 
perusal of the foregoing case, I almost doubt this. 
Now, it is well known that, after the bladder is inverted a 
quantity of serum is forced into it, forming a large tumour exter- 
nally ; and I am inclined to believe that the animal’s repeated 
strainings, and forcing the water into the bladder, may be the great 
cause of dilating the neck of the bladder ; indeed, in this instance, 
to so great an extent as to allow of the introduction of the hand ; 
but the dilatableness of the urethra is well known in operating for 
stone in the bladder. 
In the same volume of The VETERINARIAN, page 639, there is 
