114 



THE VENOMS OF CERTAIN T U A N A T P H I D E M. 



Experiment No. 68. 



REMARKS. 



Injected intravenously the peptone from 0.005 gram dried 

 Cobra venom. 



Convulsive twitchings. 



Blood is asphyxiated ; no respiration. 



Killed. 



REMARKS. 







Injected intravenously the peptone from 0.06 gram dried 

 Cobra venom. 



Tonic convulsions. 

 Convulsive twitchings ; 

 ceased. 



asphyxiated blood ; respiration 



Dead. 



The Action of Venom Peptones on the Blood Pressure of Animals with Pneumo- 

 gastric and Depressor Nerves Severed. After section of the pneumogastric and 

 depressor nerves the results are not appreciably altered. Four experiments were 

 made: one with Crotalus adamanteus ; one with Ancistrodon piscivorus, and two 

 with Cobra venom. In all of these experiments the pressure during the secondary 

 rise went above the normal. 



