Report of the Naval committee to the House of representatives, August, 1850, in favor of the establishment of a line of mail steamships to the western coast of Africa, and thence via the Mediterranean to London; designed to promote the emigration of free persons of color from the United States to Liberia: also to increase the steam navy, and to extend the commerce of the United States. With an appendix added by the American colonization society
United States. Congress. House. Committee on Naval Affairs; American Colonization Society