 His principal work, "Science of Wealth, a Manual of Political Economy", was published in 1866.Other works were "Nature and Uses of Money and Mixed Currency" (Boston, 1857) and, with William B. Calhoun and Charles L. Flint, "Transactions of the Agricultural Societies of Massachusetts" (7 vols., 1848–1854).In 1857 he began the publication of a series of articles on political economy in "Hunt's Merchant's Magazine".