road droves of cattle from Wales and the North, was immediately to conclude that these countries were the most productive of all the parts of the kingdom.
The reason that the greater part of Europe is more populous now than it was in former times, is, that the industry of the inhabitants has made these countries produce a greater quantity of human subsistence. For, I conceive, that it may be laid down as a position not to be controverted, that, taking a sufficient extent of territory to include within it exportation and importation; and allowing some variation for the prevalence of luxury, or of frugal habits; that population constantly bears a regular proportion to the food that the earth is made to produce. In the controversy concerning the populousness of an-
