Powers of the government of the United States [electronic resource] : federal, state, and territorial : speech of Hon. James A. Stewart, of Maryland, on African slavery : its status -- natural, moral, social, legal, and, constitutional : and, the origin, progress, present condition, and future destiny of the United States considered in connection with African slavery as a part of its social system : with the bearings of that institution upon the interests of all sections of the Union and upon the African race / delivered in the House of Representatives, July 23, 1856.