34. On the Effects of Ophcm 



Honrs. Winutes. 



6. — Heart beats 50, it continued to beaf 

 strong and vigorous, for some 

 hours; when the animal was. 

 ^ killed. 



EXPERIMENT 6. 



Upon the heart of another animal, ten drops 

 were poured, which contained by computatFon 

 only one-twentieth of a grain of opium, (a) 

 after the application, the contractions were en- 

 creased from 50 to 54": After this they varied 

 every five or six minutes, and continued near 

 50 for more than five hours, when the animal 

 was killed. 



EXPERIMENT T. 



Cold water w^as applied to a heart beating 

 56. The contractions immediately became less 

 frequent, not more than 49 r ^)fcftef five minutes, 

 they rose to 57, and after ten minutes, were 

 beating 61. 



EXPERIMENT k 



A second application of cold water to another 

 heart, beatiiig 53, after being exposed,. appeared 

 to encrease the contractions which were counted 



(a) This solution was made by puUing one drop of the 

 solution of Igr. to I'bgrs, into 20 dropsef water. 



