An appendix from the Quarterly Journal of Economics (pp. 379-384) presenting statistical tables on U.S. iron production and imports, 1830-1860, and cotton consumption in the United States and Great Britain. The accompanying text discusses the reliability of the sources (Raymond, Carey, Taylor, Grosvenor, Lesley, Swank, Nourse, Hunt, Ellison) and how the figures were converted. It also gives a table of U.S. exports of cotton manufactures, 1826-1860. Useful for the economic and tariff context of the American cotton textile industry; it has no weaving content.