1874.] Poison of Indian Venomous Snakes. 121 



terminal branches of the nerves in the lungs would no longer be con- 

 ducted to the medulla. The following experiment shows that our hypo- 

 thesis is correct, the injection of the poison rendering the respirations, 

 which had already been greatly diminished in rapidity by division of the 

 vagi, still slower. 



Experiment LXV. 



Sept. lotJi. A dog was chloroformed; both vagi were divided, and a can- 

 nula placed in the trachea. On recovering from the chloroform, the 

 animal became very restless and retched constantly, but was unable to 

 vomit. A little while afterwards he became more quiet, and his respira- 

 tions were counted. 



3.10. Respirations 7| per minute. 



3.13. Respirations 7 per minute. 



3.15. About '01 grain of dried cobra-poison dissolved in -^ cub. centim. 

 of water was injected into the vein of dog's leg. 



Immediately the animal became very restless, and tried in vain to 

 vomit. ' Respirations 7 per minute. 



3.21. Constant retching, but no vomiting. Respirations 7. 



3.23. About *02 grain more was injected. 



3.27. Constant retching. Respirations 6. The animal now lay down 

 exhausted, and was killed by a blow on the head. 



Experiment LXVL 



July 9. About 1 grain of dried cobra-poison dissolved in water was 

 injected into the flank of a white cat. 



3.38. Injection made. 



3.43. Cat seems depressed, sits with head drooping and eyes nearly 

 shut. Licks its lips occasionally. Pupils moderately dilated. 



3.48. Rubs its ear with fore paw, and licks fore paw afterwards. Is 

 disinclined to move. Pupils more widely dilated. 



4.25. Another dose injected. 



4.50. Another dose injected into peritoneum. As yet there is no sym- 

 ptom except depression and languor. 



4.51. Vomiting. Lies crouched down. 

 5.5. Still vomiting. 



5.14. Lies on its side. Movements of vomiting. When the cornea is 

 touched the eyes move, but the lids do not close. There is also sometimes 

 a movement of fore foot as if to ward off the irritant. 



5.17. Whining. Pupils much contracted. When the inside of the 

 ear is tickled the animal scratches at its shoulder with the hind leg of 

 same side. It cannot stand. It shakes its head sometimes when its ear is 

 tickled. 



5.25. Reflex movement of leg much fainter when the ear is irritated. 



5.31. Tries to get up voluntarily. G-ot up, staggered some steps. 

 Convulsive movements. Death. Immediately a cannula was placed 



