. . . . . . "Speech of Hon. Thomas L. Clingman, of North Carolina, against the Clayton-Bulwer treaty and in favor of American ascendency in the Gulf of Mexico and Central America Delivered in the House of Representatives, May 5, 1858"@en . . "Speech of Hon. Thomas L. Clingman, of North Carolina, against the Clayton-Bulwer treaty and in favor of American ascendency in the Gulf of Mexico and Central America. Delivered in the House of Representatives, May 5, 1858"@en .