Vol. IV. Parts I and H. 
June 1905 
BIOMETBIKA 
A JOURNAL FOR. THE STATISTICAL STUDY OF 
BIOLOGICAL PROBLEMS 
EDITED 
IN CONSULTATION WITH FRANCIS GALTON 
BY 
W. F. R. l^^ELDON KARL PEARSON 
AND 
C. B. DAVENPORT 
rt 
■i *tP 
CAMBRIDGE 
AT THE UNIVERSITY PRESS 
LONDON: CAMBBIDGE UNIVERSITY PEES8 WAEEHOUSE, FETTEE LANE 
(C. F. CLAY, Makageb) 
AND H. K. LEWIS, GO WEE STEEET 
NEW yoek: the maomillan company 
LEIPSIC ; BEOCKHAtJS • 
BOMBAY AND CALCUTTA: MACMILLAN AND CO., LIMITED 
Entered at the New York Post Office as Second Class Matter. 
Price Twenty Shillings net. 
[hsued August 1, 190S] 
