130 



THE VENOMS OF CERTAIN THANATOPIIIDE^E. 



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

 venom-globuUn and dialysis-venom-ylobulin act like the pure venom, while the 

 copper-venom-glolulin 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 piscicorus. In all of these experiments the increase of the respi- 

 ration rate was strongly marked. 



Experiment No. 25. 



Normal 



Experiment No. 26. 



Normal 



REMARKS. 



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 



REMARKS. 



Injected intravenously the peptone from O.Ofi gram 

 dried venom of the Ancistrodon piscicorus obtained 

 by boiling. 



