140 ° OPHIDIANS. 
syringe, as far as could be judged, did not penetrate any prin- 
cipal artery or vein. 
Experiment No. 3. With a white rabbit, apparently in 
perfect health, and of a medium size. 
At 2.51 p.M., injected 20 minims of the liquid into the 
femoral artery of the left hind leg. 
At 3.33 P.M., nearly dead. 
At 3.41 p.M., dead. 
At 3.42 P.M. an opening in the larynx was connected with 
a small] pair of bellows, by means of an elastic tube, and arti- 
ficial respiration was commenced; the heart commenced beat- 
ing at the rate of 150 pulsations per minute, which continued 
till 5.15 p.m., when the respiration was discontinued, owing 
to the lateness of the hour. 
Death ensued in this case in 50 minutes after the injection 
of the poison. 
An experiment had been made by Dr. Brunton a few days 
previously, in which a rabbit had been killed by the Curare 
poison, and in which artificial respiration was sustained for 
four hours and a half, when the animal was restored to life, 
the poison having been eliminated in the involuntary dis- 
charges of fecal matter and urine, which continued during 
the time of artificial respiration. 
Two days later than Experiment No. 3, another experiment 
was made of a precisely similar nature, in which artificial 
respiration was kept up for six hours, when the pulsations 
of the heart had diminished from 150 to less than 50, and as 
it was evident that they must soon cease entirely, the artificial 
respiration was discontinued. 
Deduction from Experiment No. 3. 1st. That the sensory 
nerves were first affected by the poison, the source of nerve- 
force having been apparently annihilated by it. 
