1. Introduction by R.E.Fancher: Galton, F. (1889) Co-relations and their measurement, chiefly from anthropometric data; 2. Introduction by K. Dietz: McKendrick, A.G.(1926) Applications of mathematics to medical problems; 3.Introduction by D.R. Cox: Yates, F.and Cochran, W.G.(1938) The analysis of groups of experiments; 4. Introduction by P.K. Sen: Rao, C.R.(1948) Large sample tests of statistical hypotheses concerning several parameters with application...