THE ACTION OF VENOMS UPON ARTERIAL PRESSURE. 107 



Experiment No. 53. 



Normal 



Tic 



ae : 



Pressur 



min. 



sec. 



m. m. 

 126 





20 



120 





30 



114 



1 



00 



110 



1 



20 



102 



1 



40 



102 



2 



00 



100 



2 



40 



-100 



3 



40 



102 



5 



40 



110 



6 



20 



114 



6 



50 



118 



7 



20 



124 



7 



50 



126 



8 



50 



128 



9 



20 



128 



9 



50 



130 



10 



50 



134 



11 



50 



122 



12 



50 



112 



14 



20 



112 



14 



50 



84 



15 



20 



78 



15 



50 



62 



Injected intravenously dialysis-venom-globulin from the dried 

 venom of the Vrotalus adamanteus (quantity unknown). 



Injected more of the globulin. 



Killed by pithing. 



Experiment No. 54. 



Normal 



min. 



sec. 



m. m. 









150 



Injected intra 1 





10 



118 



from the drl 





20 



130 







30 



118 





1 



00 



116 





3 



00 



110 





5 



00 



126 





7 



00 



124 





16 



00 



136 



Injected 0.003 



17 



30 



116 



" " 



17 



40 



100 





18 



30 



104 





20 



30 



126 





23 



30 



118 





28 



30 



102 





43 



30 



98 





53 



30 



94 



Animal killed. 



Injected intravenously 0.0017 gram dialysis-venom-globulin 

 from the dried venom of the Crotaluts adamanteus. 



The Action of Venom Globulins upon the Blood Pressure of Animals in which 

 the Pneumogastric Nerves had been Severed. — Four experiments were made on 

 animals in which the pneumogastric nerves and depressor nerves were severed. 

 The results in these experiments do not differ in quality from those ohtained in 



