114 



THE VENOMS OP CERTAIN THAMATOPHIDEJ1, 



Experiment No. 68. 



Normal 



Time: 

 min. sec. 



10 

 20 

 30 



40 

 00 

 20 

 20. 

 20 

 20 



1 



1 



3 



6 

 11 

 16 20 



16 50 



17 50 



18 20 



18 50 



19 00 

 19 10 



19 

 19 

 20- 

 20 



30 

 50 

 10 

 30 



Pressure 

 m. m. 

 140 

 130 

 148 

 140 

 142 

 142 

 140 

 138 

 152 

 224 

 176 

 134 



92 

 104 



84 



46 



46 



38 



36 



40 



40 



Injected intravenously the peptone from 0.005 gram dried 

 Cobra venom. 



Convulsive twitchings. 



Blood is asphyxiated ; no respiration. 



Killed. 



Experiment No. 69. 



Normal 



mm. sec. 



10 



15 



30 



50 



3 20 



8 20 



10 20 



10 30 



10 40 



10 50 



00 

 20 

 40 



12 00 

 12 20 

 12 40 



m. m. 



130 



130 



116 



156 



156 



140 



190 



176 



208 



182 



136 



116 



102 



86 



66 



54 



38 



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 ivith 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 Grotalus 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. 



