. . "United States Exploring Expedition (1838-1842)" . . . . . . "Electronic books"@en . "Reply of Col. Abert and Mr. Markoe to the Hon. Mr. Tappan of the United States Senate" . . . . . . "Reply of Col. Abert and Mr. Markoe to the Hon. Mr. Tappan, of the United States Senate"@en . . . . . . . . . . .