on the Living Si/stem, 37 



Hour* Minatet 



365. The heart is quite motionless. The 

 contractility of this organ was 

 never recovered again, but the 

 extremities were contractile near 

 two hours after. 



EXPERIMENT il. 



Up07i the Heart of another Frog beating 58. 



H. M. 



0. 2. Five drops of spirits of wine with 

 five drops of water were poured. 

 5. Heart beating 48; the animal 

 struggles. 



20. Five drops more were poured on, 

 the motion of the heart instantly 

 diminished. 



22. Heart beats only 30. 



40. Heart yet beats 29, or 30. 



50. Heart beats only 26. The extre- 

 mities are contractile, but not 

 greatly so. 

 7. 10. Heart beats not more than 18, or 

 20 ; extremities are not contrac- 

 tile when stimulated. 



SO. Animal quite dead, no contractions 

 could be excited in any part by 

 the application of any mechanical 

 stimulus. 



