1904. Mangum, A. W., cartographer, surveyor. and Neill, N. P. (Nelson Prentice),cartographer,surveyor. Shows soil types classification by colors and symbols. 'Field Operations, Bureau of Soils, 1904. 'Andrew B. Graham Co. Lithographers Washington DC.... The Bureau.
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1904. Mangum, A. W. and Neill, N. P. (Nelson Prentice). Relief shown by contours. Map covers portions of Spencer and Warrick Counties in Indiana. Shows soil types classification by colors and symbols. 'F... The Bureau.