VEGETABLE POISONS. 79 



contractions of the muscles, and every now and 

 then there was an effort to breathe. The in- 

 voluntary motions continued, and the efforts to 

 breathe became more frequent. At the end of 

 another hour, the animal, for the first time, gave 

 some signs of sensibility when roused, and made 

 spontaneous efforts to breathe 22 times in a 

 minute. The artificial respiration was discon- 

 tinued. She lay, as if in a state of profound 

 sleep, for 40 minutes more, when she suddenly 

 awoke, and walked away. On the following day 

 she appeared slightly indisposed ; but she gradu- 

 ally recovered, and is at this time still alive and 

 in health. 



EXPERIMENT II. 



Some woorara was applied to a wound in a 

 rabbit. The animal was apparently dead in four 

 minutes after the application of the poison ; but 

 the heart continued acting. He was placed in a 

 temperature of 90, and the lungs were arti- 

 ficially inflated. The heart continued to act 

 about 150 times in a minute. For more than 

 three hours the pulse was strong and regular ; 

 after this it became feeble and irregular ; and at 

 the end of another hour the circulation had 

 entirely ceased. During this time there was no 

 appearance of returning sensibility. 



The circulation of the blood may be main- 

 tained in an animal from whom the brain has 

 been removed for a considerable, but not for an 



