Biometric Xaborator^ Ipublications 



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



DRAPERS' COMPANY RESEAK^:.;( Mr.MwiK.^, 



Biotmtric Series. 



I. Mathematical Contributions to the Theory of Evol [\\. 



On the Theory of Contingency and its Rehition to .\.^i,oci;iUon 

 and Normal Correhition. P.y Karl I'karson, F.K.S. Price 

 4^. net. 



IL Mathematical Contributions to the Theory of Evolution. — XfV^ 

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

 By Karl Pear.son, F.R.S. Price s-f. nef. 



in. Mathematical Contributions to the Theory of Evolution. — XV. 

 On the Mathematical Theory of Random Migration. Py 

 Karl Pearson, F.R.S., with the assistance of John Bi.akl- 

 MAN, M.Sc. Price ^s. net. 



IV. Mathematical Contributions to the Theory of involution. — XVI. 

 On Further Methods of Measuring Correlation. By Karl 

 Pearson, F.R.S. Price 4j\ net 



V. Mathematical Contributions to the Theory of E\c.luiion. — XVI L 

 On Homotyposis in the Animal Kingdom. Py Eknkst 

 Warren, D.Sc, Alice Lee, D.Sc, Euna Lea-Smith, 

 Marion Radford, and Karl Pearson, F.R.S. {Shortly. 



VI. Albinism in Man. By Karl Pear.son, E. Ni,citlkshi!\ and 

 C. H. Usher. Text, Part I. Atlas, Part I. Price l^s. net. 



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

 New Method of regarding the Association of Two \'ariales 

 classed solely in Alternate Categories. By Karl Pearsox, 

 F.R.S. 



Studies in National Deterioration. 



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 ;o 

 years. By Daviu Heron, M.A., D.Sc. Price ^s. net. 



II. A First Study of the Statistics of Puhnonary Tuberculosis 

 (Inheritance). By Karl Pearson, F.R.S. Price y. net. 



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. Price is. net. 



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



Characters. By Karl Pearson, F.R.S. [S/wrily. 



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

 Statistical Study based upon the Family History of 1,500 

 Criminals. By Ch.\rles Goring, M.D., B.Sc. Price jj. net. 



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

 Mortality of the Tuberculous and Sanatorium Treatmeiu. By 

 W. Paun Eluekton, F.I. a., and S. J. Perrv, A. I. A. Price 

 2,s. net. , 



VII. On the Intensity of Natural Selection in Man. iSy E, I '^vv, 

 D.Sc. Price 3^". net. 



