f the Agricultural Systems, or of those Systems of Political Economy, which represent the Produce of Land, as either the sole or the principal Source of the Revenue and Wealth of every Country

The agricultural systems of political economy will not require so long an explanation as that which I have thought it necessary to bestow upon the mercantile or commercial system.

That system which represents the produce of land as the sole source of the revenue and wealth of every country has, so far as I know, never been adopted by any nation, and it at present exists only in the speculations of a few men of great learning and ingenuity in France. It would not, surely, be worth while to examine at great length the errors of a system which never has done, and probably never will do, any harm in any