Population. Returns of the actual or estimated population of England and Wales for each year from 1840 to 1853, both included; the number of deaths from small-pox in each year, and the per-centage of deaths on the average population of the fourteen years; of the same for the years 1854 to 1861, both included; of the same for the years 1862 to 1870, both included; and of the same for the Metropolis for the same periods [electronic resource].