Account of an Expedition from Pittsburgh to the Rocky Mountains, Vol. 1 of 2: Performed in the Years 1819 and '20, by Order of the Hon. J. C. Calhoun, Sec'y of War; Under the Command of Major Stephen H. Long, from the Notes of Major Long, Mr. T. Say, and
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Account of an Expedition from Pittsburgh to the Rocky Mountains, Vol. 1 of 2: Performed in the Years 1819 and '20, by Order of the Hon. J. C. Calhoun, Sec'y of War; Under the Command of Major Stephen H. Long, from the Notes of Major Long, Mr. T. Say, and
