population. But in 1790 it became about one in forty-five, in 1800 one in forty-eight, in 1810 one in fifty-four, and in the ten years preceding 1820 one in sixty, in England and Wales. But though these important facts had gradually become known; although it was also clear that people lived longer; that the wealthy classes attained a greater age than the indigent; that the value of a lady’s life, commercially, and not in the spirit of gallantry, was superior to that of a gentleman; it could scarcely be said to be acted on. So late as 1819, Dr. Rees suggested the importance of specifying the sexes, and discriminating them in the burial registers, advising also that the numbers of both sexes dying of every distemper in every manner and at every age should be specified. “This would afford the necessary data for ascertaining the difference between the duration of human life among males and females, for such a difference there certainly is much in favour of females.” The tables on which the rates of the companies had been founded, had given the continuance of life at a far lower estimate than time had proved it to possess. The enormous success of the original societies had proved this; and, by 1821, it was generally understood that the Northampton table was only an approximation to the truth. This table was chiefly in use until the Carlisle table of Mr. Milne gradually made its way, up to which period the following were the principal sources whence information was derived:-- A Record of the Births and Burials in Breslau from 1687 to 1691. London Bills of Mortality from 1728 to 1737. Register of Assignable Annuities in Holland from 1623 to 1748. Lists of the Tontine Schemes and the Necrologies of Religious Houses in France. Mortality of Northampton for forty-six years prior to 1780. ” of Norwich thirty years prior to 1769. ” of Holy Cross thirty years prior to 1780. ” Warrington for nine years. ” Chester for ten years. ” Vienna, Berlin, and Brandenburgh. ” Seven enumerations of the entire population of Sweden. ” of similar materials from the Canton de Vaud.