The following papers, among others, will be issued in Vol. Ill : 
Experimental and Statistical Studies upon Lepidoptera. I. Variation and 
Elimination in Philosauria cynthit/,. By Henry E. Crampton. 
A Third Study' of the Variation and Correlation of the Humj^n Skull, with special 
reference to 17th century English Crania. By W. R. Macdonell. 
A Second Study of Natural Selection in Clausilia laminata Montagu. By 
W. F. R. Weldon. 
On the Prediction of Cranial Capacity from Circumferential Measurements. 
By M. A. Lewenz. 
On Inheritance in Man. II. Inheritance of the Psychical Characters. By Karl 
Pearson. 
Report on the Observations made on Shirley Poppies in the Summer of 1903. 
(Cooperative Study.) 
On the Influence of Season and Environment on the Correlation and Variation of 
the Lesser Celandine. (Cooperative Study.) 
THE FIRST NUMBER OF THE 
British Journal of Psychology 
edited by 
JAMES WARD and W. H. R. RIVERS 
WITH THE COLLABORATION OP 
W. McDOUGALL. A. F. SHAND. 
C. S. MYERS. ^ C. S. SHERRINGTON. 
W. G. SMITH. 
WAS PUBLISHED IN JANUARY, 1904. 
Subscription price (in advance), \bs. net post free per volume of four parts : 
single parts, 5s. net each. See Special Prospectus. ^ 
LONDON:, C. J. CLAY and SONS, 
CAMBRIDGE UNIVERSITY PEESS WAKEHOUSE, AVE MARIA LANE. 
The Journal of Hygiene 
EDITED BY 
GEORGE H. F. NUTTALL, M.D., Ph.D. 
Lecturer in Bacteriology and Preventive Medicine in the University of Cambridge, 
Late Associate in Hygiene in the Johns Hopkins University, Baltimore. 
IN CONJUNCTION WITH ' 
JOHN S. HALDANE, M.D., F.R.S., ARTHUR NEWSHOLME, M.D., F.R,C.P., 
Lecturer in Physiology in the University of Oxford. Medical Officer of Health of Brighton. 
PUBLISHED QUARTERLY. Royal 8vo. 
The subscription price, payable in advance, is 21s. net per volume (post-free), single numbers 
Is. net. Subscriptions may be sent to Messrs C. J. Clay & Sons, Cambridge University Press 
Wai-ehouse, Ave Maria Lane, London, E.C., or to Mr H. K. Lewis, 136, Gower St., London, W.C. 
Vol. I (1901), Vol. II (1902) and Vol. Ill (complete). Each volume in four parts, paper 
covers, 15s. net per volume. Bound in buckram, 18s. &d. net per volume. The Parts of Volumes 
I, II and III separately 5s. net each. 
LONDON: C. J. CLAY and SONS, 
CAMBKIDGE UNIVEKSITY PBESS WAEBHOUSE, AVE; MARIA |LANE. 
