Contents 
v 
PAGE 
(ix) On a Correction to be made to the Correlation Ratio ??. By 
Karl Pearson 254 
(x) A Simplified Method of calculating Frequencies of Occurrence, from 
a Large Number of Unequal Probabilities. By A. G. McKendrick 413 
(xi) The Application of the Correlation Coefficient to Mendelian Distri- 
butions. By E. C. Snow 420 
(xii) A Mendelian View of Racial Heredity. By H. J. Laski . . 424 
(xiii) On " Cancer Houses," from the Data of the late Th. Law Webb, M.D. 
By Karl Pearson 430 
(xiv) Hybridisation of Canaries. By A. Rudolf Galloway . . . 435 
(xv) An Attempt to ascertain the Prevalence of Syphilis in a large Urban 
Population. By W. P. E 437 
(xvi) On the General Theory of the Influence of Selection on Correlation 
and Variation. By Karl Pearson 437 
(xvii) On a Fallacious Proof of Sheppard's Correction by K. P. . . 443 
Biometric Memoirs and Statistical Reviewers. A Letter from 
E. C. Snow . 456 
Plates. 
Parts I. and II. 
Plate I. Sagittal Contour. Cranium of the Murderer Thurtell . . 139 
Plate II. Sagittal Contour. Egyptian Cranium ..... 141 
Plates III — V. English Crania. Type-Contours .... 143—147 
Plates VI— VIII. Cro-Magnon Crania. Type-Contours . . . 149—153 
Plates IX — XI. Congo Crania. Type-Contours. Fernand Vaz, 1864 . 155 — 159 
Plates XII — XIV. Congo Crania. Type-Contours. Fernand Vaz, 
1880 161—165 
Plates XV— XVII. Congo Crania. Type-Contours. Batetelu Race . 167 — 171 
Plates XVIII— XX. Egyptian Crania. Type-Contours . . . 173—177 
Plates XXI— XXIII. Eskimo Crania. Type-Contours . . . 179—183 
Plates XXIV— XXVI. Guauche Crania. Type-Contours . . . 185—189 
Plates XXVII— XXIX. English Crania, 17th Century. Type-Contours 191—195 
Plates XXX— XXXII. Living English Head. Type-Contours . 197—201 
(Also Thirty-two copies of Cranial Type-Contours in pocket 
at the end of volume.) 
