The average proportion of births to burials in any country for a period of five to ten years, will hence appear to be a very inadequate criterion by which to judge of its real progress in population. This proportion certainly shews the rate of increase during those five or ten years; but we can by no means thence infer what had been the increase for the twenty years before, or what would be the increase for the twenty years after. Dr. Price observes that Sweden, Norway, Russia, and the kingdom of Naples, are increasing fast; but the extracts from registers that he has given are not for periods of sufficient extent to establish the fact. It is highly probable, however, that Sweden, Norway, and Russia, are really increasing their population, though not at the rate that the proportion of births to burials for the short periods that Dr. Price takes
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