oft the Living System, 33 



Hoars. Micutet. 



48. Heart bc^ats more il-cbly, not more 



than 06 in a minute. 

 53. Heart still bt^ats 56 in a niinute. 



4. — Heart beats no more than 47 : ani- 



mal struggles ; the heart is always 

 slower for one minute after 

 struggling. 



5. — Heart' beats 52. 



6. — Heart beats 49. 



.The animal was now killed, as nothing 

 further could be collected from permitting it 

 to live. 



EXPERIMENT 5. 

 Upon an heart beating 58, the same quan- 

 tity of the solution was poured on at 4^- lo"* : 

 i. e. 10 grains. 



H. M. 



4. 15. The animal struggled. 



17. Heart beats 56 in a minute. 



20. Heartbeats 58. 



25. Heart beats only 46, but the con- 

 tractions are strong. 



\j. Heart beats 48 : Five more drops of 

 equal strength were poured on. 



40. Heart beats 48, with little dif- 

 ference in strength. ^ 



43. Heart beats 48 : strong and vi- 

 gorous contractions. 



£ 



