Biometvic ILabotatot^ [publications 



DULAU & CO., Ltd., 37 SOHO SQUARE, LONDON, W. 



DRAPERS' COMPANY RESEARCH MEMOIRS. 



Biometric Series. 



I. Mathematical Contributions to the Theory of Evolution. — XIII. On 

 the Theory of Contingency and its Relation to Association and 

 Normal Correlation. By Karl Pearson, F.R.S. Issued. Price 

 4s. net. 



II. Mathematical Contributions to the Theory of Evolution. — XIV. On 

 the Theory of Skew Correlation and Non-linear Regression. By 

 Karl Pearson, F.R.S. Issued. Price 5s. net. 



III. Mathematical Contributions to the Theory of Evolution. — XV. On the 



Mathematical Theory of Random Migration. By Karl Pearson, 

 F.R.S., with the assistance of John Blakeman, M.Sc. Issued. 

 Price 5 s. net. 



IV. Mathematical Contributions to the Theory of Evolution. — X\T. On 



Further Methods of Measuring Correlation. By Karl Pearson, 



F.R.S. Issued. Price 4s. net. 

 V. Mathematical Contributions to the Theory of Evolution. — XVII. On 



Homotyposis in the Animal Kingdom. By Ernest Warren, D.Sc, 



Alice Lee, D.Sc, Edna Lea-Smith, Marion Radford, and Karl 



Pearson, F.R.S. [Shoytly. 



VI. Albinism in Man. By Karl Pearson, E. Nettleship, and C. H. 



Usher. Text, Part I, and Atlas, Part I. Issued. Price 35s. net. 

 VII. Mathematical Contributions to the Theory of Evolution. — XVIII. On 



a Novel Method of Regarding the Association of two Variates classed 



solely in Alternative Categories. By Karl Pearson, F.R.S. Issued. 



Price 4s. net. 

 */llI. Albinism in Man. By Karl Pearson, E. Nettleship, and C. H. Usher. 



Part II. [Shoytly. 



Studies in National Deterioration. Price 35. net each. 



I. On the Relation of Fertility in Man to Social Status, and on the changes 

 in this Relation that have taken place in the last 50 years. By David 

 Heron, M.A., D.Sc. Issued. 

 II. A First Study of the Statistics of Pulmonary Tuberculosis (Inheritance). 

 By Karl Pearson, F.R.S. Issued. 

 III. A Second Study of the Statistics of Pulmonary Tuberculosis. Marital 

 Infection. By Ernest G. Pope, revised by Karl Pearson, F.R.S. 

 With an Appendix on Assortative Mating by Ethel M. Elderton. 

 Issued. 

 IV. The Health of the School-Child in relation to its Mental Characters. 

 By Karl Pearson, F.R.S. [Shortly. 



V. On the Inheritance of the Diathesis of Phthisis and Insanity. A 

 Statistical Study based upon the Family History of 1,500 Criminals. 

 By Charles Goring, M.D., B.Sc. Issued. 

 VI. A Third Study of the Statistics of Pulmonary Tuberculosis. The 

 Mortality of the Tuberculous and Sanatorium Treatment. By W. P. 

 Elderton, F.I. A., and S. J. Perry, A.I. A. Issued. 

 VII. On the Intensity of Natural Selection in Man. By E. C. Snow, D.Sc. 



Issued. 

 VIII. On the Correlation of Fertility with Social Value. A Co-operative Study. 

 Just ready. 



