OF THE BRAIN, ETC. 27 



in the subsequent experiments I employed animals 

 which had been inoculated with the poison of 

 woorara, or the essential oil of almonds ; by which 

 means, while the functions of the brain were 

 completely destroyed, the extent of the circula- 

 tion was uridiminished, and the chance of acci- 

 dental hemorrhage was avoided. 



EXPERIMENT V. 



Thermometer 65, barometer 29'8 inch. 



Two rabbits were procured, each occupying 

 the space of 45 cubic inches. They were both 

 inoculated with the woorara poison. 



The first rabbit was apparently dead in nine 

 minutes after the application of the poison ; but 

 the heart continued to act. The lungs were 

 inflated for about two minutes, by means of a 

 pair of bellows, when the thermometer in the 

 rectum was observed to stand at 98. The 

 animal was then placed under the bell-glass, and 

 artificial respiration was produced by means of 

 pressure on the gum-bottle, as in the last experi- 

 ment. At the end of 30 minutes, a portion of 

 air was preserved for examination. The ther- 

 mometer in the rectum had fallen to 91. The 

 heart still acted with regularity and strength. 



The second rabbit died in a few minutes after 

 the inoculation. The time was noted when the 

 thermometer in the rectum had fallen to 98, 

 and he was placed under another bell-glass. At 

 the end of 30 minutes, the thermometer in the 

 rectum had fallen to 92. 



