Karl Pearson 
219 
1-0054 
•9901 
•1020 
•00032 
•00034 
•0910 
3-1481 
Greenwood and White 
1-0096 
•9830 
•1401 
•00130 
•00137 
•2238 
3-5590 
The analytical constants are : 
Fleming 
Mean 
Mode 
Standard Deviation 
m 
ft 
ft 
Equation to curve* : 
log y = 529-5950139 + 58-4127 log (a> - 6-7004) 
- 594-7245 log x 
Mode at # = 7-4302, Mean at 7 -446 
and unit of x = unit of opsonic index. 
It will be seen that Greenwood and White's distribution, while sensibly less 
variable than their " independent means," is more variable than Fleming's f. It 
will thus I think be clear that while Fleming reaches precisely as great a scatter 
#=•15614 1 + ; 
25-4589 tan-i (X/.6993) 
•3592/ 
Origin at Index -5232 
and unit of # = unit of opsonic index. 
Diagram IX. Opsonic Indices from dependent means. (Greenwood.) 
•70 
•80 
•90 
1-00 1-10 1-20 1-30 
Opsonic Indices. 
1-40 
1-50 1-60 
1-70 
* Eeduced to 1000 total. 
t He would be a courageous critic, who asserted even here that Diagram IX differs from Diagram 
VIII by the existence of "enormous working errors," to which the variation in the former is due! 
And such a statement would be wide of the mark, for it is the determination of the opsonic index from 
independent means, Diagrams IV and V, which must actually be compared. 
28—2 
