M. Greenwood and J. D. C. White 
513 
t.p2 -| -13-6034 10-3220tau-i 
^ + 9^5149^] • 
Origin at 2-6712, where 39-5 bacilli are taken as 0 and 8 bacilli per 25 cells form the statistical 
unit of grouping. 
t.r'2. -1-6-0718 2-7070 tan- 1 
Origin at 4-87446, 105-5 bacilli taken as 0 and 12 bacilh per 50 cells as the statistical unit of 
grouping. 
r .^•2 -1-7-0316 4-0483tan-i 
Origin at 4-021598, 258-5 bacilli taken as 0 and 16 bacilli per 100 cells as the statistical 
unit of grouping. 
-t60- 
140 
130 
120 
110 
100- 
■i, -5 -6 -7 -8 -9 10 M 1-2 1-3 1-4 1-5 1-6 1-7 IB 1-9 
Opsonic Index. 
Graph 3. Curve of Samples of 25. 
