180 



THE VENOM OF HELODEHMA. 



—Rabbita 7 and 8. Smaller doses of venom were used here than in experiments on rabbit 6; a slight rise in both 

 occurred. In rabbit 8 the rise is preceded by a fall. 

 Rabbit 9. This rabbit had an initially low leucocyte count; it succumbed to a rather small dose of venom . 

 No rise in number of leucocytes. 



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. 32. — Rahhxi 10. Large dose; no leucocytosis. Some initial fall in number of leucocytes. 

 Rabbit 11. Slight fall followed by a not considerable rise in leucocytes. 



Rabbit 12. Small number of leucocytes observed in beginning of experiment; followed by inconsiderable 

 rise after injection. 



