130 



THE VENOMS OF CERTAIN THAN ATOP II IDEJ1. 



The results of these experiments with the globulins indicate that the water- 

 venom-glob ttlin and dialysis-venom-globulin act like the pure venom, while the 

 copper-venom-globulin lacks the property of producing the primary acceleration of 

 the respirations. 



Section III. — The Action of Venom Peptones on the Respiration. 



The Action of Venom Peptones on the Respiration in Normal Animals. — Three 

 experiments were made on the normal animals with the venom peptones; in two 

 with the peptone from the Crotalus adamanteus, and in one with the peptone from 

 the Ancistrodon piscivorus. In all of these experiments the increase of the respi- 

 ration rate was strongly marked. 



Experiment No. 25. 



Normal 







Length of 



Time: 



Respirations 



curve 



min. sec. 



per minute. 



m. m. 





225 



68 



10 



255 



60 



30 



255 



60 



1 00 



300 



56 



2 00 



270 



50 



5 00 



270 



50 



9 00 



270 



55 



Injected intravenously the peptone from 0.03 gram 

 dried venom of the Crotalus adamanteus obtained 

 by boiling. 



Killed. Blood clots readily; moderate ecchymoscs in 

 the lungs 



Experiment No. 26. 



Normal 









Length of 



Time: 



Respirations 



curve 



min. 



sec. 



per minute. 



m. m. 







180 



11 





10 



240 



16 





30 



270 



15 





40 



240 





] 



00 



345 





1 



10 



270 





1 



20 



240 





4 



20 



240 





9 



20 



300 





18 



20 



360 



14 



28 



20 



270 



. . . 



38 



20 



180 



11 



Injected intravenously the peptone from 0.06 gram 

 dried venom of the Ancistrodon piscivorus obtained 

 by boiling. 



