60 



THE VENOMS OF CERTAIN THANATOPHIDEJE. 



Experiment No. 9. 



Time : 



Normal 



10 



20 

 30 

 50 

 00 

 10 

 20 

 30 

 40 

 40 

 40 

 40 

 40 

 10 



Pulsations 

 per minute. 



225 

 235 

 240 

 240 

 240 

 240 

 240 

 240 

 240 

 240 

 260 

 280 

 330 

 350 



Injected intravenously 0.015 gram dried venom of the Gro- 

 talus horridus dissolved in 1 c. c. distilled water. 



Convulsions. 

 Dead. 



Experiment No. 10. 



Time: 



Normal 



min. sec. 



5 

 10 

 20 

 30 

 40 

 00 

 00 

 30 

 30 

 00 

 30 

 00 

 00 



Pulsations 

 per minute. 



270 



310 

 400 

 350 

 225 

 240 

 280 

 280 

 330 

 90 



REMARKS. 



Injected intravenously 0.015 gram dried venom of the Gro- 

 talus horridus dissolved in 1 c. c. distilled water. 



Animal broke loose and was replaced — record before this 

 time valueless. 



Respirations cease. 



Experiment No. 11. 



Time : 



Normal 



min. sec. 



20 



30 

 40 

 00 

 30 

 50 

 10 

 30 

 00 

 00 



Pulsations 

 per minute. 



216 



228 



228 



245 



252 



240 



284 



280 



280 



280 



Injected intravenously 0.004 gram dried venom of the Ancis- 



trodon piscivorus dissolved in 1 c. c. distilled water. 

 Convulsions. 



Injected a similar dose. 



Killed by pithing. 



