THE ACTION OF VENOMS UPON THE PULSE-KATE. 



63 



Experiment No. 18. 



REMARKS. 



Injected intravenously 0.015 gram dried Cobra venom dis- 

 solved in 1 c. e. distilled water. 



Dead. 



REMARKS. 



Injected intravenously 0.005 gram dried venom of the Daboia 

 Jiussellii dissolved in 0.5 c. c. distilled water. 



Tetanic convulsions. 

 Dead. 



REMARKS. 



Injected intravenously 0.003 gram dried venom of the Cobra 

 dissolved in 1 c. c. distilled water. 



Respiration ceased ; artificial respiration used. 



Actions of Pure Venoms on the Pulse-rate in Animals with Cut Pneumogastric 

 Nerves. After section of the pneumogastric nerves we invariably found an increase 

 which was, as a rule, very slight. Seven experiments in all were made on animals 

 thus operated upon: one with the venom of the Crotalns adamanteus ; one with 

 the Crotalns horridus ; one with the Ancistrodon piscivorus ; one with the Ancis- 

 trodon contort rix, and three with the Cobra. 



