[520]. Wealth of Nations, I. xi., beginning.
[521]. He does not always prefix this qualification; but that he intended it appears clearly from the Tract on Rent, p. 3 n.: Not every land that yields food will yield rent. Cf. Pol Econ. (1820), p. 141.
[522]. Compare Tract on Rent, p. 16 n.
[523]. The title of the tract is, An Inquiry into the Nature and Progress of Rent, and the Principles by which it is regulated. It appears from a letter of Malthus to Sir John Sinclair on 31st Jan., 1815, that it was passing through the press in that month. Sinclair, Correspondence, i. 391 (1831).
[524]. As, he might have added, in education.
[525]. Pol. Econ. (1820), p. 142, but especially p. 187. Cf. Tract on Rent, pp. 8–12.
[526]. Rent, p. 10.
[527]. Cf. also below, p. 294.
[528]. Wealth of Nations, IV. ii. 307, 2; cf. IV. v. 240, 2.
[529]. Essay on the Application of Capital to Land, with observations showing the impolicy of any great restriction of the importation of corn, and that the bounty of 1688 did not lower the price of it. By a fellow of University College, Oxford. (London, 1815.) Page 2.