版New ed. rev., with additions.
一般注記Appendices: I. A reply to criticisms. [Rewritten from an article in the Nineteenth century on the criticisms of Social evolution]--II. Marriage-ages of various sections of the population in England.--III. The white and coloured population of the southern United States, 1890 (Reprinted from the Census bulletin no. 48.) --IV. The influence of civilisation upon the movement of the population. By P. Leroy-Beaulieu (Translation from the Economiste français, 20th and 27th September 1890, published in the Journal of the Royal statistical society of London, June 1891)