108 



THE VENOMS OF CERTAIN THANATOPHIDE^E. 



normal animals ; the effects, however, appear to be less decided than in animals 

 with the pneumogastrics intact. Here, as in the previous experiments, the copper- 

 venom-globulin exhibits comparatively little effect on the pressure. 



Of the four experiments which were made with globulins from the Crotahis 

 adamanteus, one was made with the tcater-venom-i/iolulin ; two with the copper- 

 venom-globulin, and one with the dialysis-venom-globulin. It will be noticed that in 

 several instances considerable rises of pressure occurred accompanied by struggles ; 

 the former effect being, no doubt, due to the latter, and not to a peculiar action 

 of the globulin. 



Experiment No. 55. 



Normal 



Experiment No. 56. 



Normal 



Experiment No. 57. 



Normal 



Time: 

 min. sec. 



20 

 40 

 50 



2 50 

 4 50 

 6 50 

 8 50 



Pressure 

 m. m. 

 116 

 116 

 116 

 116 

 116 

 116 

 116 

 112 



REMARKS. 



Injected intravenously 0.0011 gram water-venom-globulin from 

 the dried veuom of the Crolalus adamanteus. 



Clot in canula. Animal killed by pithing. 



REMARKS. 



Injected intravenously 0.0024 gram copper-venom-globulin 

 from the dried venom of the Crotalus adamanleus. 



Injected a similar dose. 



Respiration greatly slowed. 



Animal broke loose. Killed by pithing. 



REMARKS. 



Injected intravenously 0.0012 gram copper-venom-globulin 

 from the dried venom of the Crotalus adamanteus. 



