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 In the first twenty-five years the population would be twenty-two millions, and the food being also doubled, the means of subsistence would be equal to this increase. In the next twenty-five years, the population would be forty-four millions, and the...  The Principles of Population and Production as They are Affected by the ... - Side 6 av John Weyland - 1816 - 493 sider Uten tilgangsbegrensning -
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