138 
REVIEW.— A TREATISE ON 
many cases, the internal membrane of the heart and aorta presented 
a bright red colour. 
“ At the same time M. Bouley, jun., one of our most distin-. 
guished veterinarians, examined more than fifty horses that died of 
the same epidemic. His dissections were always made within 
from half an hour to three hours after the death of the animal, and, 
in almost every instance, he found the internal membrane of the 
heart and aorta of a bright scarlet or purple colour. On the other 
hand, MM. Rigot and Trousseau, who likewise opened a great 
number of horses, state that they never found any appearance of 
redness in the heart or arteries when the dissection was made 
shortly after death, but that they always found it when the dissec- 
tion was deferred for several hours. 
“This difference in the result of our dissections is to be accounted 
for by the circumstance of our researches having been made at dif- 
ferent periods; mine during the year 1825, and theirs in 1828, 
when the first inflammatory disease had ceased. There is, there- 
fore, nothing extraordinary in the different results that we obtained; 
and it appears to me that the very circumstance of the redness of 
the heart and arteries so constantly observed during the first epi- 
demic, and not being observed after it had ceased, affords an addi- 
tional reason for supposing that it was produced by a morbid con- 
dition of the part. As to the nature of that morbid condition, I 
think it highly probable that it was inflammation of the coats of 
the arteries. These horses during their illness presented decided 
symptoms of disease in the thoracic viscera ; and as no morbid ap- 
pearance was found in the lungs, we have nothing to attribute these 
symptoms to but the affection of the heart and large vessels, cha- 
racterized — 1st, By the uniform red colour of their internal mem- 
brane ; 2d, By a remarkable degree of softening in the muscular 
structure of the heart ; and, 3dlv, By inflammation of the pericar- 
dium, and effusions of different kinds into its cavity. 
“From these facts I conclude that the uniform redness of the in- 
ternal coats of arteries may, in some cases, be the result of inflam- 
mation. In one of the cases recorded by M. Bouillard, the internal 
membrane in those parts in which it was red, was covered by a 
thin layer of albuminous matter. This surely is tolerable evidence 
of the existence of inflammation.” 
We take another illustration, almost at hap-hazard : — Mela- 
nosis, either existing in a mass of an irregular figure, or divided 
into lobules — or losing its consistence, and being transformed, at 
first partly and then wholly, into blackish pulp — or deposited in 
the form of solid lavers on the surface of membranes, or rather 
false membranes, stained black, and infiltrated with melanosis — or 
in a fluid state, as in the stomach, or some serous character of the 
