PRACTICE OF VETERINARY MEDICINE. 
119 
the organs exposed. The lungs appeared to be little if at all col¬ 
lapsed ; and instead of the pale pink tint which they usually shew 
under such circumstances, they more resembled large masses of 
coal than any thing else 1 could compare them with; more espe¬ 
cially the right lung, which was filled in every part with very dark 
coagulated blood. On cutting into the organs, a little serum flowed 
after the knife; and what was remarkable, when the coagulated 
mass was fully spread or exposed to the atmosphere, scarcely any 
perceptible change took place in its colour. The blood appeared 
as though it had become so vitiated as to be incapable of assuming 
the hue of arterial blood. The heart was firm in its muscular 
structure; its right cavities were perfectly empty, while its left 
ones were filled with the dark blood common to the lungs, and, in 
addition, the left ventricle contained a portion of separated fibrine. 
The organ, when divested of its extraneous parts, weighed seven 
pounds five ounces avoirdupois. The trachea contained a great 
quantity of frothy spume, and its mucous membrane was slightly 
livid. 
Brain, fyc .—-The vessels of the brain contained dark blood : its 
structure, however, was firm, and its colour normal: a small por¬ 
tion of serum was found at its base, but beyond this I failed to 
detect any other change : the quantity of serum could not have 
been more than half a teaspoonful. The spinal cord I did not exa¬ 
mine. The muscular apparatus was normal, and also the urinary 
organs. 
Case II. 
Dec. l^th, 1844.—Was requested by a gentleman in this town 
to attend upon his pony. 
History , <^c.—The animal is a mare of a dark-brown colour, and 
stands exactly twelve hands high; is considered by the owner 
(whose property she has been for the last eleven years) to be about 
fourteen years of age; she has always been a very good and re¬ 
markably healthy little animal until within the last few days, 
when she began to cough, and her appetite to fail her in some 
degree, which state was attributed to having had her clipped. 
This morning, however, she appeared to eat with her old zest, 
and, in consequence, she was very liberally supplied with corn 
and hay. Soon after eating her ration she was put into harness, 
and driven for many hours through different parts of the country, 
and at every place where the owner’s business required him to 
stay for a short time she was tried either with water or food, 
which the animal refused upon every occasion. About two o’clock 
in the afternoon she commenced purging violently ; and, according 
