Born in London, 27 March 1857; educated at University College School and King's College Cambridge; Third Wrangler in Mathematics Tripos, 1879; studied medieval and sixteenth-century German literature, Berlin and Heidelberg Universities, 1879-1880; read law, called to the Bar by Inner Temple, 1881; delivered lectures on mathematics, philosophy and German literature at societies and clubs devoted to adult education; deputised for the Professor of Mathematics, King's College London, 1881, and for the Professor of Mathematics at University College London, 1883; formed the Men and Women's Club, with some others, to discuss equality between the sexes; appointed to Goldsmid Chair of Applied Mathematics and Mechanics, University College London, 1884; appointed Professor of Geometry, Gresham College, 1891; collaborated with Walter Frank Raphael Weldon, Professor of Zoology and Comparative Anatomy, in biometry and evolutionary theory, 1891-1906; elected Fellow of the Royal Society, 1896; founded journal Biometrika with Weldon and Francis Galton founder of the School of Eugenics at University College London, 1901; appointed first Galton Professor of Eugenics, University College London, 1911; formed Department of Applied Statistics incorporating the Biometric Laboratory and Galton Laboratory, University College London; founded journal Annals of Eugenics, 1925; retired, 1933, died at Coldharbour, Surrey, 27 April 1936. Publications: A first study of the inheritance of vision and of the relative influence of heredity and environment on sight (London, 1909); A preliminary study of extreme alcoholism in adults with A Barrington (London, 1910); editor of The common sense of the exact sciences (Kegan Paul & Co, London, 1885); On the correlation of fertility with social value: a cooperative study with others (1913); editor of Tables of the incomplete G-function: computed by the staff of the Department of Applied Statistics, University College (London, 1922); Study of the data provided by a baby-clinic in a large manufacturing town (Cambridge, 1922); editor of Tracts for computers (London, 1919); editor of Tables for statisticians and biometricians (London, 1914); A mathematical theory of random migration (1906); A monograph on albinism in man with E Nettleship and C H Usher (1911); Charles Darwin, 1809-1882, an appreciation (London, 1923); Darwinism, medical progress and eugenics The Cavendish lecture, 1912, an address to the medical profession (1912); Enthusiasm of the market place and of the study (1885); Eugenics and public health An address to public health officers (1912); Francis Galton, 1822-1922, a centenary appreciation (London, 1922); Home conditions and eyesight: some recent misinterpretations of the problem of nurture and nature; Mathematical contributions to the theory of evolution (1904); Matter and soul (1886); Mendelism and the problem of mental defect (1914); National life from the stand-point of science An address delivered at Newcastle (A & C Black, London, 1901); Nature and nurture, the problem of the future A presidential address (1910); On a practical theory of elliptical and pseudo-elliptical arches, with special reference to the ideal masonry arch with W D Reynolds and W F Stanton (1909); On the construction of tables and on interpolation (London, 1920); On the handicapping of the first-born (1914); On the relationship of health to the psychial and physical characters in school children (Cambridge, 1923); On the skull and portraits of George Buchanan (Oliver & Boyd, Edinburgh, London, 1926); Reaction! A criticism of Mr Balfour's attack on rationalism (1895); Side lights on the evolution of man (London, 1921); Social problems, their treatment, past, present, and future A lecture (1912); Studies in national deterioration (1907); Supplement to the memoir (by Ethel M Elderton) entitled: The influence of parental alcoholism on the physique and ability of the offspring A reply to the Cambridge economists (1910); editor of Tables of the incomplete beta-function (The Proprietors of Biometrika, London, 1934); The academic aspect of the science of eugenics A lecture delivered to undergraduates (1911); The chances of death and other studies in evolution (E Arnold, London, 1897); The ethic of freethought: a selection of essays and lectures (T Fisher Unwin, London, 1888); The fight against tuberculosis and the death-rate from phthisis (1911); The grammar of science (1892); The groundwork of eugenics (1909); The life, letters and labours of Francis Galton (Cambridge University Press, Cambridge, 1914); The moral basis of socialism (W Reeves, London, 1887); The new university for London: a guide to its history and a criticism of its defects (T F Unwin, London, 1892); The positive creed of freethought: with some remarks on the relation of freethought to socialism (W Reeves, London, 1888); The problem of practical eugenics (1909); The right of the unborn child (Cambridge University Press, London, 1927); The science of man: its needs and its prospects (London, 1920); The skull and portraits of Henry Stewart, Lord Darnley, and their bearing on the tragedy of Mary, Queen of Scots (1928); editor of The treasury of human inheritance (Dulau & Co, London, 1909); Tuberculosis, heredity and environment (1912); A study of the long bones of the English skeleton (London, 1919); On the sesamoids of the knee-joint (Cambridge, 1922); A second study of the influence of parental alcoholism on the physique and ability of the offspring (1910); editor of A second study of the statistics of pulmonary tuberculosis: marital infection (London, 1908); editor of A history of the theory of elasticity and of the strength of materials from Galilei to the present time (University Press, Cambridge, 1886-1893); The Trinity: a nineteenth century passion-play (E Johnson, Cambridge, 1882); A statistical study of oral temperatures in school children, with special reference to parental, environmental, and class differences with M H Williams and Julia Bell (1914); On the torsion resulting from flexure in prisms with cross-sections of uni-axial symmetry only with A W Young, M A Ethel and M Elderton (1918).