184 



THE VENOM OF HELODERMA. 



L 

 36,000 

 34,000 

 32.000 

 30,000 

 28,000 

 26,000 

 24,000 

 22,000 

 20,000 

 18,000 

 16,000 

 14,000 

 12,000 



to.ooo 



8,000 

 6.000 

 4,000 

 2,000 



Fig. 37. Rabbit 17, Experiment 3. Amount of venom slightly larger than in preceding experiment; if there was a 

 leucocytosis, it occurred at times other than when counts were made, 1 and 2 days respectively after 

 injection. 

 Rabbit 17, Experiment 4. Amount of venom administered again increased. Slight rise in number of leuco- 

 cytes on third day after injection was probably not due to action of venom. It is difficult to explain why 

 no leucocytosis was found in this case; it may have occurred during the night. 



L 



54,000 



52,000 



50,000 



48,000 



46,000 



44,000 



42,000 



40,000 



38,000 



36,000 



34,000 



32,000 



30,000 



28,000 



26,000 



24,000 



22,000 



20,000 



18,000 



16,000 



14,000 



12,000 



10,000 



8,000 



6,000 



4,000 



2,000 



Fig. 38. Dog 1. Leucocytosis followed injection of venom, part of which was given intravenously. 

 Dog 2. Leucocytosis followed intravenous administration of venom. 



