ofi the Living Sijsttm, 49 



Hours. Minutes 



The heart cannot, through the in- 

 teguments, be discerned to beat. 



1 . — The animal lies in a state of stupe- 

 faction, and is convulsed when 

 touched. 



3. 57. Animal was dead. * 



EXPERIMENT 22. 



li. M. 



The heart of a frog beating 58. 

 6. 12. Ten drops of a solution containing 

 one grain of opium, were thrown 

 into the stomach. 

 14. The heart beats not more than 54. 



6. 17. Heart btats 52, but the animal does 



not appear to be much en- 

 feebled. 

 22. Heart beats no more than 36, and 

 very feeble. 



7. The heart w^as beating 43, and more 



strong ; the animal active. 

 36. "The heart beats 48 ; the animal 

 was then put into water, and the 

 following day was alive, but with 

 the appearance of being weaker 

 than usual. 



