E. G. Ravenstein Journal of the Statistical Society of London, Vol. 40, No. 3 (Sep., 1877), pp. 433-467 In 1877, one of the most eminent geographers and expert in population migrations, E. G. Ravenstein published in the “Journal of the Statistical Society of London” an account with statistics after years of researches in reference to the populations of Russia and European Turkey. Its […]