Biometrika. Vol. VI. Part II. 
Plate XX. 
■< 3 S = - 
(J " 
T 
,a; = (5 S w II 
O -i _ 1 
Q 5 J 1 1 
Q Is 
- 1 s 
_ '-g 1 W O 
< 5 Q S II 
-J u 2 

1 
■— - 
Diagram XVII 
Distribution of Relative 
Local Differences 
Counties — Qirls 
MEDIUM EYES 
Equation - 35_ 
to curve ^ 
