SSO Bxperimenli and Olservations on. 



it. In one of these, an animal apparently dead from the 

 woorara, was made to recover, notwilhslandinsf the func- 

 tions of the brain appeared to be wholly suspended for a 

 very long period of time : in the other, though ultimate 

 recovery did not take place, the circuUlion uas maintained 

 for several hours after the brain had ceased to perform its 

 office. 



Exper'nnent 1. — Some woorara was inserted into a 

 wound in a young cat. She became affected bv it in a few 

 minutes, and lay in a drowsy and half sensible state, in 

 which she continued at the end of an hour and fifteen mi- 

 nutes, when the ajiplication of the poison was repeated. 

 In four minutes after the second application, respiratioii 

 entirely ceased, and the animal appeared to be dead ; but 

 the heart was still felt acting about one hundred and forty 

 times in a n)inuie. Slie was placed in a temperature of 

 8.5 of Fahrenheit's thermometer, and the lungs were arti- 

 ficially inflated about forty times in a minute. 



The heart conlinue-d acung regtdarly. 



When the artificial respiration had been kept up for 

 forty minutes, the pupils ot the eyes were observed to con- 

 tract and dilate on the increase or diminution of light ; 

 saliva had flowed from the mouth, and a small quantity of 

 tears was collected between the eye and eye-lids : but the 

 animal continued perfectly moiionless and insensible. 



At the end of an hour and foity minutes, from the same 

 period, there were slight involuntary contractions of the 

 muscles, and eyery now and then there was an effort to 

 breathe. The involuntary motions continued, and the 

 efforts to breathe became niore frequent. At the end of 

 another hour, the animal, for the first time, gaye some .-^igns 

 of sensibility when roused, and made spontaneous efforts 

 to breathe twenty-two times in a minute. The artificial 

 respiration was discontinued. She lay, as if in a state of 

 profound sleep, for forty minutes, when she suddenly 

 awoke, and walked away. On the following day she ap- 

 peared slightly indisposed ; but she gradually recovered, 

 and is at this time still alive and in health. 



Rxperimcvl 2. — Some woorara was applied to a wound 

 in a rabbit. The animal was apDarenily dead in four mi- 

 nutes' after the application of the poison; but the heart 

 continued acting. He was placed in a temperature of 90°, 

 and the lungs were artificially inflated. The heart con- 

 tinued to act about one hundred and fifty times in a njinute. 

 For more than three hours the pnl?e was strong and re- 

 gular; after this, it became feeble and irregular, and at the 



end 



