H On the Effects of Opium 



(h) Experiment 5. 

 The heart of a frog, contracting 24 times in 

 a minute, was placed in half an ounce of water, 

 '.emperature 44 v It continued to contract in 

 he water for 16 minutes, and when removed, 

 contractions could be excited in the organ, by 

 pechanically stimulating it, for the space of 

 \ix minutes longer. 



1 " •- ■ •' - ^ 



(i) Experiment 6. 



The heart of a rabbit contracting 50 times 

 :n a minute, was placed in water of the tem- 

 perature of the room. It contracted spon- 

 taneously for 20 minutes, and when removed 

 continued irritable for the space of 10 minutes 

 longer. 



Can the Effect cf Opium be communicated to 

 distant Parts independent of the Assistance of 

 the Circulation f. 



{k) Experiment 7. 



The sternum of a frog was carefully elevated 

 and the heart removed, forty drops of the strong 

 solution were injected into the. stomach. In 

 15 minutes the animal was stupified and para- 



(h) VId. p. 6. Exp. 3. Inaug. Dissert. 

 (i) Vid. p. 8. Exp. 6. 

 (k) Vid, p. 28. Exp. 20. 



