16 



THE VENOMS OF CERTAIN IHANATOPHIDEil. 



Time : 



min. sec. 



13 50 



15 50 



16 10 

 16 20 

 16 30 

 16 45 

 IT 45 

 19 45 

 21 45 

 23 45 



25 45 



26 45 

 2*7 00 



Pulsations 

 per minute. 



300 

 300 

 300 

 300 

 300 

 300 

 300 

 300 

 300 

 2T0 

 270 

 270 

 270 



Experiment No. 50. 



Normal 



Time: 

 min. sec. 



10 



20 

 30 

 50 

 50 

 20 

 20 

 20 

 20 

 20 

 50 

 20 

 40 

 00 

 15 

 20 

 50 

 00 

 00 

 00 

 00 

 00 

 30 

 30 

 00 

 00 

 00 



1 



4 

 6 

 8 

 10 

 12 

 17 

 18 

 18 

 19 

 19 

 19 

 21 

 23 

 25 

 27 

 29 

 34 

 34 

 38 

 41 

 47 

 49 



Pulsations 

 per minute. 



310 

 305 

 300 

 300 

 310 

 300 

 310 

 300 

 295 

 295- 

 300 

 300 

 300 

 310 



320 

 330 

 320 

 310 

 310 

 310 

 310 

 305 

 300 

 290 

 280 

 217 



Injected 0.0024 gram. 



Struggles. 



Animal killed by pithing. 



REMARKS. 



Pneumogastric nerves cut. Injected intravenously 0.0017 

 gram dialysis-venom-globulin from the dried venom of the 

 Crotalus adamanteus. 



Struggles. 



Struggles. 



Injected 0.0034 gram. 



Struggles. 



Dead. 



The Actions of Venom Globulins on the Pulse-rate in Animals with the Pneumo- 

 gastric Nerves and Cervical Spinal Cord Cut. — In four experiments in which the 

 pneumogastric nerves and spinal cord in the middle cervical region were cut — one 

 was made with the water-venom-globulin, one with the copper-venom-globidin, and 

 two with clialysis-venom-globulin of the Crotalus adamanteus: in one experiment 



