%0 Book %A Bonar, James, 1852-1941. %I G. Allen & Unwin ltd. %D 1931 %C London %G English %T Theories of population from Raleigh to Arthur Young : lectures delivered in the Galtonian laboratory, University of London, under the Newmarch foundation, February 11 to March 18, 1929, with two additional lectures and with references to authorities