4 
OVARIAN TUMOUR IN A MARE. 
since Sunday, and at intervals she would sit upon her 
haunches with her fore legs advanced. Supposing there 
might be some impactment in the bowels, an opening draught 
was ordered, consisting of 01. Lini ^xx. Calomel 5ss, and as 
there was some indication of pain. Tine. Opii was added. 
The dose of opium was a small one in consequence of the 
mare having had two colic draughts previously. An enema of 
soap and water, with 01. Lini ^x, was thrown up, and instruc¬ 
tions were given to foment the belly with warm water by means 
of rugs. The mare was seen again in the evening, the symp¬ 
toms were about the same. The injections were returned 
colourless; they were ordered to be repeated twice during 
the night, and mustard to be applied to her belly. A 
draught was left, consisting of Sp. ^ther. Nit. and Tr. Opii, 
to be given should the pain become more acute. On Wed¬ 
nesday morning the animal was again visited ; the pulse was 
more feeble, and the mare more exhausted; Sp. ^ther. Nit. 
was ordered to be given in gruel every three or four hours, 
the former opening draught was repeated, with the addition 
of Sol .Aloes ^iv, gruel, and warm water were allowed ad libi¬ 
tum. It was, however, apparent that the case was a hopeless 
one. On Thursday morning my assistant called early and 
was informed that the mare was dead. Upon making 2 i post¬ 
mortem examination, the intestines were found to contain a 
considerable quantity of fluid faeces, except towards the rec¬ 
tum, where they were in a more solid condition. The most 
prominent object, however, was an enormous tumour, oecu- 
pying a considerable part of the abdominal cavity, and press¬ 
ing upon the posterior bowels. Upon examination, the 
growth was found to be an enlarged ovarium of the left side. 
The weight of the mass when removed was 29J lbs., its cir- 
cumferenee in one direction was 37 inches, and in the other 
354 inehes; from which it will be inferred it was nearly 
spherical in form. 
No other cause of death was discovered, and we were 
induced to suspect that the pressure of the tumour had 
caused the retention of faeces, and ultimately led to the ex¬ 
haustion of which the mare died. 
Examination of the Tumour .—A section, which was made 
completely through the enlarged ovarium, at once revealed 
the existence of a cavity occupying the centre of the tumour, 
and containing a dark red fluid; the walls of the cavity 
were formed by the fibrous stroma of the ovary, which 
was hypertrophied and varied in thickness in different parts 
from two inehes to less than an inch; the interior of the 
cavity was lined by a fibrous membrane which possessed no 
