DISEASED LUNGS OP A HORSE. 
271 
small ones more particularly assumed tlie latter appearance. 
The spongy portions of these organs were of a dirty straw 
colour, there being no red points or other indications of 
blood having circulated through them, or of their having 
been permeated by air for some long time; the small 
bronchial tubes seemed to have been completely obliterated 
by compression from the interstitial deposition. 
Such was the general appearance of the lungs as far as the 
unaided eye could discover. The microscope was now resorted 
to, to determine the true character of the white points that 
were diffused throughout the entire structure of these organs. 
On examining a small quantity of the matter scraped off 
them, it was found to consist of large nucleated cells, large 
and small granular cells, and what appeared to me to be 
free nuclei, with an abundance of granular matter. An 
examination of the deposit of these lungs was made by a 
pathologist of high standing, who, in his remarks to me on 
it, says, quoting his words, “All the white points in the 
lungs were made up of the same elements; cells nucleated 
and non-nucleated, granular and homogeneous, some like 
cancer cells, some small, like the nuclei of mucus-corpuscles 
or young epithelium.” 
1 regret that the bronchial lymphatic glands were not sent 
with the lungs, as I think they would have exhibited a disease 
of the same character as these organs. I am also of an 
opinion that the disease commenced primarily in these organs, 
and that the lungs were secondarily affected. 
Since making the above remarks, a case very similar in 
many respects to that to which they refer has been brought 
under my notice by Mr. William Clark, Y.S., of Islington. 
I think it very remarkable that two cases, so nearly identical 
in character, should have occurred within so short a time of 
each other. The organs affected, consisting of the lungs, heart, 
and spleen, were brought to the College for our inspection ; 
and a few days, after, the following letter, describing the 
symptoms observed during the time that Mr. Clark had the 
animal under his care, with his reasons for advising the owner 
of the horse to have him destroyed, also came to hand: 
Little Cross Street, Islington ; 
• March 21st, 1864. 
Dear Sir, — I beg to hand you a brief account of the symptoms pre¬ 
sented by the bay mare whose 'post-mortem appearances you have had an 
opportunity of seeing. On the 27th of January last she was brought 
here in consequence of being off her feed and having a slight cough ; she 
