UNIVERSITY OF LONDON, UNIVERSITY COLLEGE 



DEPARTMENT OF APPLIED STATISTICS 

 The Biometric Laboratory 



(assisted by a grant from the Worshipful Company of Drapers) 



Until the phenomena of any branch of knowledge have been submitted to measurement 

 and number it cannot assume the status and dignity of a science. FRANCIS GALTON. 



Under the direction of Professor Karl Pearson, F.R.S. Senior Lecturer : E. S. 

 PEARSON, D.Sc. Lecturer: G. M. Morant, D.Sc. Assistants: E. C. FlELLER, B.A., 

 Brenda Stoessiger, M.Sc. and Elvira Groine. Hon. Research Assistant: Mar- 

 garet V. Pearson, M.A. Crewdson-Benington Student : Elizabeth KlTSON, B.A. 



This Laboratory provides a complete training in modern statistical methods and 

 is especially arranged so as to assist research workers engaged on biometric problems. 



The Francis Galton Eugenics Laboratory 



National Eugenics is the study of agencies under social control, that may improve 

 or impair the racial qualities of future generations, either physically or mentally. 



The Laboratory was founded by Sir Francis Galton and is under the supervision 

 of Professor Karl Pearson, F.R.S. Assistant Professor: Ethel M. Elderton. 

 Reader in Medical Statistics : PERCY STOCKS, M.A., M.D. Hon. Galton Research 

 Fellow: JULIA Bell, M.A, M.R.C.S., M.R.C.P. Assistant: M. Noel Karn, M.A. 

 Secretary: M. Moul, M.A. 



It was the intention of the Founder, that the Laboratory should serve (i) as a 

 storehouse of statistical material bearing on the mental and physical conditions in 

 man, and the relation of these conditions to inheritance and environment ; (ii) as 

 a centre for the publication or other form of distribution of information concerning 

 National Eugenics ; (iii) as a school for training and assisting research-workers in 

 special problems in Eugenics. 



CAMBRIDGE UNIVERSITY PRESS TRACTS FOR COMPUTERS 



I. Tables of the Digamma and Trigamma Functions. By Eleanor Pair- 

 man, M.A. Price is. net. 



a j 



Tables for summing S"i.— ; w . ■ ^r- 1 — ; : -. where the /s andtf's 



are numerical factors. 

 II. On the Construction of Tables and on Interpolation. Part I. Univariate 

 Tables. By Karl Pearson, F.R.S. Price is. gd. net. 



III. On the Construction of Tables and on Interpolation. Part II. Bivariate 

 Tables. By Karl Pearson, F.R.S. Price is. gd. net. 



IV. Tables of the Logarithms of the Complete T-function to Twelve Figures. 

 Reprint with Portrait of A. M. Legendre. Price 3s. gd. net. 



V. Table of Coefficients of Everett's Central-Difference Interpolation For- 

 mula. By A. J. THOMPSON, Ph.D. Price is. gd. net. 



VI. Smoothing. By E. C. Rhodes, M.Sc. Price is. gd. net. 



VII. The numerical Evaluations of the Incomplete B-Function or of the Integral 



I xP~ l ( 1 -*)»-' dx for Ranges of x between and 1. By H. E. Soper, M.A. 

 J ° Price 3 j. gd. net. 



VIII. Table of the Logarithms of the Complete T-Function (to ten decimal 

 places) for Argument 2 to 1200 beyond Legendre's Range (Argument 1 to 2). 

 By Egon S. Pearson, D.Sc. Price is. gd. net. 



IX. Log P (x) from x = 1 to 50-9 by intervals of 001. By John Brown lee, M.D., 



D.Sc. Price is. gd. net. 

 X. On Quadrature and Cubature or on Methods of Determining Approximately 



Single and Double Integrals. By J. O. Irwin, M.Sc. Price 7s. 6d. net. 

 XL Logarithmetica Britannica. A Standard Table of Logarithms to Twenty 

 Decimal Places. Part IX. Logarithms of Numbers 90,000 to 100,000. By 

 A. J. Thompson, Ph.D. Price i$s. net._ 

 XII. Tables of the Probable Error of the Coefficient of Correlation. By Karl 



HOLZINGER, Ph.D. Price is. gd. net. 

 XIII. Bibliotheca Tabularum Mathematicarum, being a Descriptive Catalogue of 

 Mathematical Tables. Parti. A, Logarithms of Numbers. By James Hender- 

 son , 1 ' 1 1 . D . Price gs. net. 



XIV. Logarithmetica Britannica. A Standard Table of Logarithms to Twenty 

 Decimal Places. Part VIII. Logarithms of Numbers 80,000 to 90,000. By 

 A. J. Thompson, Ph.D. Price \*>s. net. 



XV. Random Sampling Numbers. By L. H. C. TlPPETT, M.SC, with a Foreword 

 by Karl Pearson. Price is. gd. net. 



XVI. Logarithmetica Britannica. A Standard Table of Logarithms to Twenty 

 Decimal Places. Part IV. Logarithms of Numbers 40,000 to 50,000. By 

 A. J. THOMPSON, Ph.D. Price 1 5.?. net. 



(iii) 



