Non-Intervention--Popular Sovereignty. Speech of Hon. S. A. Douglas, of Illinois, in the Senate of the United States, February 23, 1859, in Reply to Hon. A. G. Brown, of Mississippi, in Opposition to the Passage of a Code of Laws by Congress to Protect Slavery in the Territories, and in Favor of Banishing from the Halls of Congress All Questions Touching Domestic Slavery in the Territories, and Remanding Them to the People of the Territories, to be Disposed of as They May See Proper, Subject to an Appeal to the Judicial Tribunals, to Test the Validity of the Territorial Enactments under the Constitution of the United States, Together with an Appendix, Showing the Position of Distinguished Public Men on this Question in the Great Contests of 1854 and 1856