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*Map 839.C5,1838 Ewing, M. C.
Chart of the Columbia River for 90 miles from its mouth. Drawn from several surveys in the possession of W. A. Slacum U.S.N.
[ Washington. 1838.] Size, 1534 834 inches. Scale (computed), 4.1 miles to 1 inch. 2 profiles.
Cut from Senate Document No. 470. 25th Congress, 2d Session. Report of the Select Committee, to which was referred a bill to authorize the President of the United States to occupy the Oregon Territory [*C227.5.5].
[This work is kept on the Special Libraries Floor.]
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* This card was printed at the Boston
Public Library, January 25, 1911. H4728 — Columbia River. — Sailing charts.