CONTENTS 
{All Rights reserved) 
PAOB 
I. The most suitable Proportion between the values of First and Second 
Prizes. By Francis Galton, F.R.S . 385 
Note on Francis Galton's Problem. (One Figure.) By K. Pearson, F.R.S. 390 
II. The Relation of Binary Fission to Variation. By J. Y. Simpson, D.Sc. 400 
Note on Dr Simpson's Measurements of Paramcecium caudatum. By 
K. Pearson, F.R.S. . . . . . . . . . > 404 
III. A Second Study of the Variation and Correlation of the Human 
Skull, with special Reference to the " Naqada Crania." By. Cicely 
D. Fawcett, B.Sc, assisted by Alice Lee, D.Sc, and others (with 
7 Plates, 14 Figures and 8 folding Tables) 408 
IV. Biometrische Untersuchungen iiber die Spielarten von Helios nemo- 
ralis. Von C. Hensgeij, Plettenberg, Westfalen (with three Maps 
and ten Figures) . 468 
The Editors wish to acknowledge the receipt of papers from A. C. DiMON, 
G. U. Yule, W. L. Byrne, W. Palin Elderton, H. Whitehead, and 
A. O. POWYS. 
Mr W. Bateson hopes to send at a later date a reply to the Paper " On 
the Fundamental Conceptions of Biology " which appeared in Part III. 
Biometrika will appear about four times a year. A volume containing 
about 400 pages, with plates and tables, will be issued annually. 
Papers for publication should be sent to Professor W. F. R, Weldon, 
Merton Lea, Oxford, to Professor Karl Pearson, 7, Well Road, Hampstead, 
London, or to Professor C. B. Davenport, University of Chicago, Illinois, U.S. 
It is very desirable that a copy of all measurements made, not necessarily 
for publication, should accompany each paper. In all cases the papers theihselves 
should contain not only the calculated constants, but the distributions from 
which they have been deduced. 
Papers will be accepted in German, French or Italian. In the first 
case the manuscript should be in Roman not German characters. 
Contributors receive 25 copies of their papers free. Fifty additional copies 
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All communications, other than those relating to contributions, should 
be addressed to the University Press, Qambridge. * 
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