CONTENTS 
(All Rights reserved) 
PAGE 
I. Anomalies of Pigmentation among Natives of Nyasaland. A Contribution to the 
Study of Albinism. By Hugh Stannus Stannus. (With Plates XII— XXI) 333 
II. On the Expectation of Life in Ancient Eome, and in the Provinces of Hispania 
and Lusitania and Africa. By W. B. Macdonell. (With Three Diagrams 
in the. text) . . . . . 366 
III. On the Inheritance of the Deformity known as Split-Foot or Lobster-Claw. 
(Second Paper.) By Qeorge McMullan and -Karl Pearson. (With 
Plates XXII— XXVII and Two Diagrams in the text) . . . . .381 
IV. A Study of the Nasal Bridge in the Anthropoid Apes and its Relationship to 
the Nasal Bridge in Man. By Kathleen V. Rylet, Julia Bell and 
Karl Pearson. (With Eight Diagrams in the text) ..... 391 
V. On the Calculation of Intra-Class and Inter-Class Coefficients of Correlation 
from Class Moments when the number of Possible Combinations is large. 
By J. Arthur Harris . 446 
VI. A Second Study of the Weight, Variability and , Correlation of the Human 
Viscera. By M. Greenwood, jun., and J. W. Brown 473 
VII. The Measurements of the Pelvis with special reference to Obstetric Prediction. 
By D. H. Di! Souza. (With Plates XXVIII— XXIX) .... 486 
Miscellanea : 
(i) The Study of Dietaries. By Karl Pearson 530 
(ii) On the Surface of Constant Association @=0-6. By Karl Pearson. (With 
Plates XXX— XXXI and Two Diagrams in the text) .... 534 
(iii) Studies in the Meaning and Relationships of Birth and Death Rates. Notice 
of a paper by John Brownlee. By W. P. E . 537 
(iv) A Case of Familial Malformation in a Fowl's Head. By Hubert M. Turnbdll. 
(With Three Diagrams in the text) 538 
(v) Note on a Ready Reckoner for the Obstetrician. Editorial. (With Plates 
XXXII— XXXIII) . . . . . . . . '. . . 539 
Addendum ' . . . . . . . . . . 540 
The publication of a paper in Biometrika marks that in the Editor's opinion it contains either in 
method or material something of interest to biometricians. But the Editor desires it .to be distinctly 
understood that such publication does not mark assent to the arguments used or to the conclusions 
drawn in the paper. 
Biometrika appears about four times a year. A volume containing about 500 pages, with plates and 
tables, is issued annually. 
Papers, for publication and books and offprints for notice should be sent to Professor Karl Pearson, 
University College, London. It is very desirable that a copy of all measurements made, not necessarily 
for publication, should accompany each manuscript. In all cases the papers themselves should contain 
not only the calculated constants, but the distributions from which they have been deduced. Diagrams 
and drawings should be sent in a state suitable for direct photographic reproduction,^ and if on decimal 
paper it should be blue ruled, and the lettering only pencilled. 
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 may be had on 
payment of 7/- per sheet of eight pages, or part of a sheet of eight pages, with an extra charge for 
Plates ; these should be ordered when the final proof is returned. 
The subscription price, payable in advance, is 30s. net per volume (post free) ; single numbers 
10s. net. Volumes I, II, III, IV, V, VI, VII, VIII and IX (1902—13) complete, 30s. net per volume. 
Bound in Buckram 34/6 n«fper volume. Index to Volumes I to V, 2s. net. Subscriptions may be sent 
to C. P. Clay, Cambridge University Press, Fetter Lane, London, E.C., either direct or through any 
bookseller, and communications respecting advertisements should also be addressed to C. F. Clay. 
Till further notice, new subscribers to Biometrika may obtain Vols. I — IX together for £10 net — or 
bound in Buckram for £12 net. 
SHORTLY. 
TABLES FOR STATISTICIANS AND BIOMETRICIANS. 
Edited by Karl Pearson. University Press, Cambridge. 
CAMERIDGE: PRINTED BY JOHN CLAY, M.A. AT THE UNIVERSITY PRESS. 
