706 
URETHRAL CALCULUS. 
only favorable to enable us to diagnosis the case correctly, 
but also to perform the operation. Thirdly, if the animal 
die from the effects of the operation, the real loss in the 
majority of instances would be but trifling. Fourthly, if 
successful, an animal, often of great imaginary value, would 
be saved, to the great credit of the operator, more especially 
if it should happen to be the pet of some benevolent lady, 
having a strong attachment to this class of animals. 
It is somewhat singular that the tumour met with in the 
bitch in Mr. Bovett’s case, as well as that in the mare in Mr. 
Worm’s, should be about the same weight; and considering 
the comparative size of the two animals, the one taken from 
the bitch must be viewed as being very large. Both tumours 
were ovoid in form, and nodulated on their external surface, 
which gave no evidence of having been attached to any of the 
abdominal viscera, except by a kind of pedicle to the horn of 
the uterus—the natural attachment of the ovary. 
The interior of the tumours likewise presented similar 
appearances. Numerous cavities—large and small—bounded 
by fibrous walls, but having free intercommunication with 
each other, formed the principal part of their structure. 
These “ multilocular cysts” contained either a glairy semi¬ 
transparent, or else a thick coffee-coloured fluid. No part of 
their structure, as far as the unaided eye could detect, was of 
a cancerous nature. 
The recording of cases of ovarian disease cannot fail to be 
of interest to the veterinary surgeon, but more especially is 
it so to the pathological anatomist who is labouring in a 
field which, so far as our profession is concerned, has been 
as yet but little cultivated. 
EXTRACTION OF A URETHRAL CALCULUS 
FROM A TWO-YEAR-OLD PONY. 
By Charles Carter, M.R.C.V.S., Swaffham. 
The subject of the above operation was a two-year old 
pony, twelve hands high, the property of a labouring man 
residing at Narford. On May 11th, I860, I was requested 
to look at him, when I found that he frequently voided his 
urine by involuntary jerks; but it was perfectly clear, and 
passed without any apparent pain, or putting himself in the 
natural position. In all other respects the animal was 
