EXPERIMENT XV.

Two ounces and a half of thick fetid fluid, derived from the maceration

of cabbage leaves in an equal quantity of water, for two days, at a

temperature of 77 Fah., were injected into the right jugular vein of

a moderate sized dog. During the operation, the animal made several

efforts to swallow, and soon became faint, and vomited several times.

Some hours afterwards, there was great uneasiness and oppression,

with recurrence of the vomiting, and continued faintness during the

day. After nine hours, a most copious and very fetid evacuation took

place. The discharge was as black as soot, and composed of mucus, with

a little fæcal matter, and a large quantity of what appeared to be

corrupted blood. Some time afterwards, there was a second evacuation of

bloody mucus, exactly resembling the first. On the following day, there

was much loss of strength: the animal lay upon its side, or staggered

as it walked. There was great and insatiable thirst, with a small

feverish pulse. But the most remarkable symptom was the occurrence, at

intervals, of palpitation of the heart, accompanied by extraordinary

force and sound, resembling that produced by long continued hypertrophy

of that organ, in consequence of aneurism[28] of one of the large

arteries. On the third and fourth days, the animal was better, but

there were still great thirst, fever, and occasional rejection of

fluids from the stomach. On the fifth day, the symptoms became

aggravated; there was extreme weakness, a tottering gait, excessive

thirst, the eyes red and filled with gum; the nostrils were stuffed,

swollen, and obstructed with mucus; and the lining membrane of the

mouth was tumid, and of a violet red colour. In the middle of the day,

there was a liquid greyish white evacuation, resembling pus in its

odour, consistence, and appearance, mixed with some clots of putrified

blood. Death occurred during the following night.

[28] I once observed a similar condition in a young woman in St.

George's Hospital. Each pulsation of the heart could be heard with

great distinctness at a distance of two or three yards from the

patient; during the paroxysms, there was the greatest difficulty of

breathing; the countenance became anxious and livid, and a distinct

thrill was communicated to all the arteries. After death, the

countenance and upper part of the body were found livid from venous

congestion. The lungs did not readily collapse when the chest was

opened. The auricles of the heart were greatly distended with black

blood; the inner surface of the left ventricle presented a white patch,

of about two square inches in extent; the lining membrane of the aorta,

for several inches, was of a bright red colour; this extended round

one-third only of the circumference of the vessel. No other structural

change could be found in the heart or vessels, which would account for

the symptoms observed during life.

_Post-mortem appearances._ The mucous membrane of the eyes, nose, and

mouth, was red or violet, and covered by a very abundant thick mucus.

The lungs were of a dark colour, with some black patches, but still

crepitant. The left ventricle of the heart presented several brown

stains, resembling ecchymoses, which penetrated into its tissue. Its

internal surface was of the colour of lees of wine, offering a singular

contrast to that of the right side, which, however, contained a hard

fibrinous concretion, two drachms and a half in weight, of a light

yellow colour, and resembling grease in appearance. This was of the

same consistence throughout, everywhere free, with the exception of a

portion of the size of a finger nail, which adhered to an irregular

and apparently inflamed spot on the inner surface of the ventricle; no

appearance of the injected fluid could be recognized in this clot. It

was continued of the same colour and consistence into the pulmonary

artery, and into the vena cava, the vena azygos, the axillary, and even

the right jugular vein.

The intestinal mucous membrane, especially in the rectum, the duodenum,

and a small portion of the small intestines, was of a violet red

colour. It was inflamed in longitudinal stripes and in patches, which

gave a mottled appearance, even to the outer surface of the intestines,

before they were opened. This discolouration was not accompanied by any

thickening of the tissues, nor by ulceration, and appeared rather the

result of ecchymosis or hæmorrhage. The lining membrane of the rectum

was principally affected, and its mucous glands were swollen and very

prominent. This intestine contained puriform fluid, resembling the

matter evacuated before death. The other intestines contained a very

thick greyish white mucus. The mesenteric glands were inflamed, and

appeared as if infiltrated with blood. The gall bladder was mottled on

its surface by brown and violet patches, and contained black, thick,

ropy bile, resembling melted tar.

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