BIOMETEIKA 
A JOURNAL FOR THE STATISTICAL STUDY OF 
BIOLOGICAL PROBLEMS 
FOUNDED BY 
W. F. R. WELDON, FRANCIS GALTON and KARL PEARSON 
EDITED 
IN CONSULTATION WITH SIR FRANCIS GALTON 
BY 
KARL PEARSON 
VOLUME VII 
July 1909 to October I9I0 
CAMBRIDGE 
AT THE UNIVERSITY PRESS 
LONDON: FETTER LANE, E.G. 
(C. F. CLAY, Manager) 
AND H. K. LEWIS, GOWER STREET 
EDINBURGH : 100, PRINCES STREET 
NEW YORK : G. P. PDTNAm's SONS 
BERLIN : A. ASHEK AND CO. 
LEIPSIC : BROCKHAUS 
BOMBAY AND CALCUTTA: MACMILLAN AND CO., LIMITED 
[All rights reservfid] 
