1913. Gilbert, B. D., Kirk, N. M., Smith, William G. (Surveyor), Snyder & Black Lithogrs., United States. Bureau of Chemistry and Soils, and Westover, Harvey Leroy. Cartographic Details: Scale [1:63,360]. 1 in. = 1 mile (W 93°03'--W 92°15'/N 44°45'--N 44°10'). In lower right margin: Field operations, Bureau of ...
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1929. United States. Bureau of Chemistry and Soils. Base map in part from U.S. Geological Survey sheets. 83 x 78 Centimeters Scale 1:62,500 Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Chemistry and Soils (Washington, D.C.?).
1929. United States. Bureau of Chemistry and Soils. 63 x 67 Centimeters Scale [1:63,360] Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Chemistry and Soils (Washington, D.C.?).
1923. United States. Bureau of Chemistry and Soils. 63 x 78 centimeters Scale [1:63,360] Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Soils (Washington, D.C.?).
1924. United States. Bureau of Chemistry and Soils. 500 Hemispherical map centered on the South Pole to the Tropic of Capricorn; includes southern parts of South America and South Africa and the west... Field Operations, Bureau of Soils (Washington, D.C.?).
1927. United States. Bureau of Chemistry and Soils. Relief shown by contours.; "Corrected to January 1, 1911."; "Monograph LII, plate VIII"--Upper right corner. 123 x 49 centimeters Scale [1:63,360] ... Field Operations, Bureau of Chemistry and Soils (Washington, D.C.?).
1916. United States. Bureau of Chemistry and Soils and University of Minnesota. Agricultural Experiment Station. Cartographic Details: Scale approximately 1:49,000. Not "1 in. = 1 mi." (W 93°30 ª--W 93°00 ª/N 45°25 ª--N 45°00 ª). Enlarged reproduction. "Soils ... Snyder & Black (New York).
1923. United States. Bureau of Chemistry and Soils. 66 x 79 centimeters Scale [1:63,360] Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Soils (Washington, D.C.?).
1926. United States. Bureau of Chemistry and Soils. Base map in part from International Joint Commission charts. 93 x 56 Centimeters Scale [1:126,720] Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Soils (Washington, D.C.?).
1918. United States. Bureau of Chemistry and Soils. 500 Hemispherical map centered on the South Pole to the Tropic of Capricorn; includes southern parts of South America and South Africa and the west... Government Printing Office (Washington).