Outlines of American political economy, in a series of letters addressed by Frederick List, Esq., late professor of political economy at the University of Tubingen in Germany, to Charles J. Ingersoll, Esq., Vice-President of the Pennsylvania Society for the Promotion of Manufactures and the Mechanic Arts : to which is added the celebrated letters of Mr. Jefferson to Benjamin Austin, and of Mr. Madison to the editors of the Lynchburg Virginian.