DISEASE OF THE URINARY ORGANS OF A COW. 767 
the opportunity of securing the organs we have just named, 
and which we have since carefully examined. 
The vagina was quite healthy, as was also the uterus, as 
seen externally, but its mucous membrane appeared to be 
considerably thickened, and its surface of a dark-brown 
colour, more so in some places than in others. I am not sure, 
however, whether this condition is not such as might be con¬ 
sidered consistent with the period which had existed after 
parturition, or whether it must be looked upon as abnormal. 
But even should the latter be the case, I cannot conceive that 
it had any direct influence in producing the false membrane 
before alluded to. Indirectly , perhaps, it may have had some¬ 
thing to do with it. The ureters appeared healthy, with the 
exception of the left one, and that at only one small place, 
about nine or ten inches from its termination, where there 
was a partial stricture. The bladder was unusually con¬ 
tracted, which gave a thickened appearance to its coats; but 
I could not detect that either of them was diseased, with the 
exception of the inner, the mucous coat, which evidently was 
thicker than natural, and there were dark-red patches here 
and there on its surface, apparently the result of stain from 
some colouring matter that had come into contact with it. 
The urethral canal and the openings of both ureters were 
quite natural. The kidneys were both enlarged, from their 
structure being infiltrated by serous exudation; the surfaces 
of several of their calices were ulcerated ; the lining mem¬ 
brane of the pelvis of both was much thickened; in some 
parts it was of a dark-brown colour, covered by a thick, 
tenacious, darker matter, and which, in those calices that 
were ulcerated, was of a dark-red or brick-dust colour. 
Mr. Rose suggested that the affection in these glands was 
analogous to Bright's disease, and it certainly is highly cha¬ 
racteristic of some of the forms of that malady, perhaps 
identical with it. 
We may now offer a few more remarks on the specimen 
first sent, viz., the false membrane, which, as before stated, 
is a cast of the interior of the bladder, &c., to the surface of 
which it had, no doubt, been attached. But the question 
arises, was it produced from this organ, or was it secreted 
from the kidneys, being the result of diseased action, and, 
having passed to the bladder, became deposited on the inner 
surface of that organ in the form we found it? I incline to 
the former opinion. I think, however, that the kidneys were 
primarily diseased, and that the mucous membrane of the 
bladder was secondarily affected (some would describe this 
occurrence as metastatic), not, perhaps, at any time in a very 
