VEGETABLE POISONS. 71 



the influence of this or of any other poison that 

 acts in a similar manner, by continuing the arti- 

 ficial respiration for a sufficient length of time 

 after natural respiration had ceased, the brain 

 might recover from the impression which the 

 poison had produced, so that it would be re- 

 stored to life. In the last experiment, the rabbit 

 gave no signs of returning sensibility ; but it 

 is to be observed, 1. That the quantity of 

 poison employed was very large. 2. That there 

 was a great loss of animal heat, in consequence 

 of the temperature of the room being much below 

 the natural temperature of the animal, which 

 could not therefore be considered under such 

 favourable circumstances as to recovery, as if it 

 had been kept in a higher temperature. 3. That 

 the circulation was still vigorous when I left off 

 inflating the lungs, and therefore it cannot be 

 known what would have been the result, if the 

 artificial respiration had been longer continued. 



EXPERIMENT XXXI. 



A wound was made in the side of a rabbit. 

 One drop of the essential oil of almonds was in- 

 serted into it ; and immediately the animal was 

 placed in a temperature of 90. In two mi- 

 nutes he was under the influence of the poison. 

 The usual symptoms took place. In three mi- 

 nutes more, respiration had ceased, and he lay 

 apparently dead, but the heart was still felt 

 beating through the ribs. A tube was then intro- 



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