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CAMBRIDGE UNIVERSITY PRESS. 



BIOMETRIKA. 



A JOURNAL FOR THE STATISTICAL STUDY OF BIOLOGICAL 

 PROBLEMS. Edited, in Consultation with Francis Galtox, by W. F. R. 

 Weldon, Karl Pearson, and C. B. Bavenport. 



Now Ready. Vol. IV., Part. I and II. 1905. Price 20 s. net. 



Contents'- — 



I. Results of Crossing Grey (House) Mice with Albinos. By E. H. J. Schuster, 

 M.A. (With coloured Plate I.) 



II. Biometrical Studies on Man. I. Variation and Correlation in Brainweight. 

 By Raymond Pearl. Ph.D. (With twenty-three Diagrams in the text.) 



III. A Study of the Relations of the Brain to the Size of the Head. By Regixald 



J. Gladstone, M.D. (With Plates II and III and five Figures in the text) 



IV. On the Biometrie Constants of English Brain- weights. By J. BLAKEMAN, 



M.Sc., assisted by Alice Lee. D Sc. and Karl Pearson, F.R.S. (With 

 six Figures in the text.) 



V. A Quantitative Study of the Resemblance between Man and Woman. By 



£. TSCHEPOURKOWSKY. 



VI. "Das Fehlergesetz und seine Verallgemeinerungen durch Fechner und Pearson." 

 A Rejoinder. By Karl Pearson, F.R.S. (With four Figures in the text.) 



VII. Variation and Correlation in the Earthworm. By Raymond Pearl, Ph.D., 

 and WilbüR N! Füller. (With one Figure in the text.) 



Miscellanea. (i) Per la risoluzione delle curve dimorfiche. Nota del Er. Fernando 



DE HeLGUERO. 



(ii) Albinism in Sicily. A further Correction. By W. Baresox. 



Now Ready. Vol. IV., Part. III. November, 1905. Price 20 s. net. 



Contents : — 



I. Data for the Problem of Evolution in Man. On Fertility, Duration of Life and 



Reproductive Selection. By A. O. Powys. (With 19 Diagrams in the text.) 



II. Contributions to the Study of Interracial Correlation By E. Tschepourkowsky. 



III. Statistical Studies in Immunity. Smallpox and Vaccination. By john Brownlee) 



M.A , M.D. 



IV. On Tests for Linearity of Regression in Frequencv Distributions. By John 



Blakeman, M.Sc, B.A. 



V. The Long Barrow and Round Barrow Skulls in the Collection of the Depart- 



ment of Comparative Anatomy , The Museum , Oxford. By E. H. J. 

 Schuster, M.A. (With 1 Figure in the text, 6 Plates and 3 folding Tables.) 



VI. The Egg of Cuculus Canorus. An Attempt to Ascertain from the Dimensions 

 of the Cuckoo's Egg if the Species is Tending to Break up into Sub- 

 species each Exhibiting a Preference for some one Foster-parent. Second 

 Memoir. By Oswald H. Latter. 



Miscellanea. Notes on Statistical Processes. By W. Palin Elderton. 



Subscription price , payable in advance 30 s. per volume (post free). Single 

 numbers ioj net. Volumes L, II. and III (1902-4) complete , 30 s net per volume; 

 bound in buckram, £, 1 14 s. 6ä net. per volume. 



London: CAMBRIDGE UNIVERSITY PRESS WAREHOUSE, 

 Fetter Lane, C. F. CLAY, Manager. 



Carl Rcrr.bold, Heilbronn. 





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