122 



THE VENOMS OF CERTAIN T H A N A T F H 1 D E 



Experiment No. 8. 



Normal 



REMARKS. 



Injected intravenously 0.015 pram dried Cobra venom 



dissolved in 1 c. c. distilled water and filtered. 

 Struggles. 



Respiration ceased. 



Experiment No. 9. 



. TJie Action of Pure Venoms on (lie Respiration in Animals in which tfie Pneii- 

 mocjastric Nerves were Cut. When injections are made, after section of the pneu- 

 mogastric nerves, the primary increase in the respiration rate does not occur, but a 

 diminution begins at once; and, on the whole, drops irregularly until death ensues. 

 Four experiments were thus made : one with Crotalus adamanteus, two with 

 Ancistrodon pisdvorus, and one with Cobra venom ; the results being on the whole 

 reasonably uniform. 



