ANTIMONIAL POISONING. 
353 
and kidneys, but also considerable. The contents of the in- 
testines gave the same amount of evidence as the intestines 
themselves. The contents of the stomach yielded distinct 
traces, but little in proportion to the other parts. This arose 
from the fact that the amount collected for analysis was very 
small, the stomach having been emptied during life by the 
vomiting. 
In this inquiry sixteen analyses were made. The blood 
seemed to be the principal seat of the poison. 
Experiment II . — Inhalation of Antimonuretted Hydrogen 
Gas . — A store of antimonuretted hydrogen was made, by 
adding to diluted sulphuric acid and zinc, six drachms of 
tartar emetic in a WolPs bottle. The gas was collected in the 
usual w ay. All the chemicals used were tested previously, 
and found to be free from arsenic, and in all respects pure. 
A young dog was now placed in a glass chamber, capable of 
holding 3000 cubic inches of atmospheric air. The chamber 
was air-tight; but an opening, armed with a stopcock, w 7 as 
fixed in the top, for the admission of the gas, while another 
opening in the bottom, secured with a w 7 ater-valve, was so 
arranged that the introduction of the gas should lead to a dis- 
placement of air, to an extent equal to the amount of the gas 
introduced. After the animal had become quiet, 100 cubic 
inches of the gas were slowly thrown into the chamber, and 
this operation w as repeated every tw r enty minutes so long as 
the experiment continued, 100 cubic inches of pure air being 
driven in with each dose of the gas. In the atmosphere 
thus modified the animal lived three hours and fifty minutes, 
in the course of w hich time 1000 cubic inches of the gas were 
passed into the chamber, wfith the same quantity of fresh air, 
which was introduced to prevent the complication that might 
arise from carbonic acid. 
For one hour and forty minutes after the inhalation no 
peculiar symptom at all w 7 as presented. But at this time the 
animal suddenly became copiously purged, without any evi- 
dent pain. The evacuation w 7 as fluid and dark. Ten minutes 
later the breathing became quicker, running up from thirty 
to forty-eight respirations per minute. Ten minutes later 
there was copious vomiting. During the succeeding half- 
hour the respirations fell to thirty-six per minute, and the 
animal reclined in a prostrated listless state, making no 
further efforts either to purge or to vomit. When spoken to, 
he rallied up briskly, and showed no evidence of pain, but 
decided prostration. The respirations now began to fail, and 
gradually sunk. Three hours and forty-five minutes after 
the commencement of the operation he seemed to have ceased 
