London: John Murray, 1820. If Only Malthus, Instead of Ricardo, Had Been the Parent Stem From Which Nineteenth-Century Economics Proceeded, What a Much Wiser and Richer Place the World Would be Today" MALTHUS, T[homas] R[obert]. Principles of Political Economy. Considered with a View to Their Practical Application. London: John Murray, 1820. First edition. Octavo. vi, [1]2-601[602]. Original boards, uncut. With original paper label on spine. Hinges expertly and almost invisibly repaired. Old bookplate from "The Library of Victoria" with no other library markings. A very clean copy, internally fine. Very scarce in original boards. Housed in a custom quarter black morocco clamshell, gilt-stamped. First edition of Malthus' principal contribution to economic theory. Schumpeter describes Malthus' work in relation to that of his predecessors, Adam Smith and Ricardo, as follows: "Ricardo's work...started with the Wealth of Nations and recoined the latter's theoretical contents by…