Twenty years ago it could already be asserted that a population of thirty million individuals could live very well, without importing anything, on what could be grown in Great Britain. But now, when we see the progress recently made in France, in Germany, in England, and when we contemplate the new horizons which open before us, we can say that in cultivating the earth as it is already cultivated in many places, even on poor soils, fifty or sixty million inhabitants to the territory of Great Britain would still be a very feeble proportion to what man could extract from the soil. In any case (as we are about to demonstrate) we may consider it as absolutely proved that if to-morrow Paris and the two departments of Seine and of Seine-et-Oise organized themselves as an Anarchist commune, in which all worked with their hands, and if the entire universe refused to send them a single bushel of wheat, a single head of cattle, a single basket of fruit, and left them only the territory of the two departments, they could not only produce all the corn, meat, and vegetables necessary for themselves, but also vegetables and fruit which are now articles of luxury, in sufficient quantities for all. And, in addition, we affirm that the sum total of this labour would be far less than that expended at present to feed these people with corn harvested in Auvergne and Russia, with vegetables produced a little everywhere by extensive agriculture, and with fruit grown in the South. It is self-evident that we in nowise desire all exchange to be suppressed, nor that each region should strive to produce that which will only grow in its climate by a more or less artificial culture. But we care to draw attention to the fact that the theory of exchange, such as is understood to-day, is strangely exaggerated--that exchange is often useless and even harmful. We assert, moreover, that people have never had a right conception of the immense labour of Southern wine growers, nor that of Russian and Hungarian corn growers, whose excessive labour could also be very much reduced if they adopted intensive culture, instead of their present system of extensive agriculture. II