supposition, a sufficient number of people in the country to consume the whole produce of a medium year; therefore you cannot, by your exportation in a plentiful year, reduce the quantity of corn in the country below that medium produce, without destroying some of your people by hunger; and you must bring the produce of a scanty year up to that medium by importation; or you must allow some of your people to perish in this case too, from hunger.
What then would be the effects of these operations upon prices and produce? It is evident that the exportation of a plentiful year could not raise the price above that of a medium year; because it is the high price of a medium year, and the great demand at home, which prevents any part of that produce from going abroad. The importation in a scanty year would bring the price upon a level with the general free market, common to all the nations of the world, which would always be the same, or nearly the same, with the medium price at home. By this process the price of corn is preserved at all times very near that rate, which an exact proportion between the produce of the country, and the inhabitants of the country requires; a rate, and a process, which, by consequence, have, beyond all contrivances, the most powerful effect to produce that exact proportion. The progress of agriculture too, its gradual improvement, is, in this case, left to the impulse of the general circumstances of the country, to that
