Vol. IV. Part III. 
November 1905 
BIOMETRIKA 
A JOURNAL FOR THE STATISTICAL STUDY OF 
BIOLOGICAL PROBLEMS 
EDITED 
IN CONSULTATION WITH FRANCIS GALTON 
BY 
W. F. R. WELDON KARL PEARSON 
AND 
C. B. DAYENPORT 
CAMBRIDGE 
AT THE UNIVERSITY PRESS 
LONDON: CAMBRIDGE UNIVEESITY PEESS WAREHOUSE, FETTER LANE 
(C. F. CLAY, Managee) 
AND H. K. LEWIS, GOWEE STREET 
NEW yoek: the macmillan company 
IiElTSIO ; BBOCKHAUS 
BOMBAY AND CALCUTTA: MACMILLAN AND CO., LIMITED 
Entered at the New York Post OfiSce as Seoond Class Matter. 
Price Ten Shillings net. 
[l»sued November 10, 1905] 
