ON TIIE EFFECTS OF ACRID POISONS. 
237 
place. Examination was made 22 hours after; the lungs were 
red throughout and gorged in patches. The stomach externally 
was very vascular. The whole of the mucous membrane from 
the cardiac orifice of the stomach to the extremity of the rectum 
was in the highest possible state of inflammation. The stomach 
contained about 4 ounces of a frothy mucus mixed with bloody 
and a small quantity of a similar secretion was found coating 
the intestines. The inner lining of the urinary organs was red¬ 
der than natural. The lining membrane of the hearty large 
arteries and veins was in its healthy condition. 
In this case a longer interval between the administration of 
the poison and death gave time for the establishment of inflam¬ 
mation in more situations, and allowed it to proceed to a greater 
extent in those parts which were irritated in the preceding expe¬ 
riment. 
A third drawing exhibited the large intestine of the same 
dog, showing the degree of inflammation in that portion of the 
alimentary canal. 
It may here be observed that half an ounce of the saturated 
solution of arsenious acid produced in several instances no sym¬ 
ptom of ailment even when injected into the veins. 
Various experiments were made by Dr. Roupell with corro¬ 
sive sublimate in solution. Half an ounce of the liquor hydrar- 
gyri oxymuriatis P. L. which contains a quarter of a grain of 
corrosive sublimate, injected as before into the veins, gave rise to 
no apparent inconvenience. 
The injection of a whole ounce containing half a grain of sub- 
- limate produced marked discomfort to the animal, followed by 
severe vomiting and dysentery. But although the symptoms of 
irritation in the abdomen were urgent, and the dejections proved 
the highly inflammatory state of the bowels, yet death did not 
ensue from that quantity. 
Dr. Roupell’s next experiment was made with tartarized anti¬ 
mony, with the vinum antimonii tartarizati of the London Phar¬ 
macopoeia. An ounce of this liquid was thrown into the saphfena 
vein of an active terrier dog. The vinum antimonii tartarizati 
contains two grains of tartarized antimony, and rather more than 
a drachm of rectified spirit in the ounce. The immediate effect 
of this injection was to produce intoxication. The animal was 
able to move about; but his legs failed him, he seemed giddy, 
and his gait was staggering. No other effect was apparent for 
half an hour, and as the dog then seemed but little affected, 
it was left, under the supposition that the spirit had prevented 
the action of the tartar emetic. But when the animal was 
visited some hours afterwards it was found dead and stiff. 
