between the food and the numbers supported by it, is restricted to a limit beyond which it cannot pass. In every country, the population of which is not absolutely decreasing, the food must be necessarily sufficient to support, and to continue, the race of labourers.
Other circumstances being the same, it may be affirmed that countries are populous, according to the quantity of human food which they produce; and happy according to the liberality with which that food is divided, or the quantity which a day's labour will purchase. Corn countries are more populous than pasture countries; and rice countries more populous than corn countries. The lands in England are not suited to rice, but they would all bear potatoes; and Dr. Adam Smith observes that if potatoes were to become the favourite vegeta-
