THE VENOMS OF CERTAIN T II A N A T I' II 1 D E .E. 



REMARKS. 



Pneumogastric nerves cut. Injected intravenously 0.003 

 grain dried venom of the Crotalus adamanleus dissolved 

 in 1 c. c. distilled water. 



Injected a similar dose. 

 Dead. 



REMARKS. 



Pneumogastric nerves cut. Injected intravenously 0.015 

 gram dried venom of the Crotalus horridus dissolved in 

 1 c. c. distilled water. 



Violent struggles. 



Dead. 



REMARKS. 



Pneumogastric nerves cut. Injected intravenously 0.003 

 gram dried venom of the Ancistrodon piscivonts dissolved 

 in 1 c. c. distilled water. 



Struggles. 



Struggles. 

 Convulsions. 



Injected a similar dose. 



