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PRINCIPLE OF POPULATION.
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would naturally be first inhabited, the period of doubling was about 35 years; and in some of the maritime towns, the population was absolutely at a stand.

These facts seem to shew that population increases exactly in the proportion, that the two great checks to it, misery

    land, the power of the earth to afford a yearly increase of food may be compared to a great reservoir of water, supplied by a moderate stream. The faster population increases, the more help will be got to draw off the water, and consequently an increasing quantity will be taken every year. But the sooner, undoubtedly, will the reservoir be exhausted, and the streams only remain. When acre has been added to acre, till all the fertile land is occupied, the yearly increase of food will depend upon the amelioration of the land already in possession; and even this moderate stream will be gradually diminishing. But population, could it be supplied with food, would go on with unexhausted vigour, and the increase of one period would furnish the power of a greater increase the next, and this without any limit.

and