14. Horace Mann, Speech of Mr. Horace Mann, of Massachusetts, in the House of Representatives of the United States, June 30, 1848, on the Right of Congress to Legislate for the Territories of the United States, and Its Duty to Exclude Slavery Therefrom (N.p., [1848?]). (30 p.)


Anti-slavery speech, especially in regard to the extension of slavery into the western territories.