1913. Quinn, E. J. (Edward J.) and Tharp, W. E. (William Edgar). Shows soil types classification by colors and symbols. 'Field Operations, Bureau of Soils, 1913.' 'A Hoen & Co Lith Baltimore Md.' Scale 1:63,360. ... Bureau of Soils.
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1914. Jones, Grove B., 1877- cartographer. Shows soil types classification by colors and symbols.; Field Operations Bureau of Soils 1914.; Snyder & Black, N.Y. Scale 1:63,360. 1 inch = 1 mile. Bureau of Soils.
1915. Hertenstein, Earl,surveyor., Hurst, Lewis A. (Lewis Alexander),1874-cartographer,surveyor., Middleton, Philip (Soil surveyor),surveyor., Tharp, W. E. (William Edgar),surveyor., and Watkins, W. I. (William Isaac),1888-1973,surveyor. Shows soil types classification by colors and symbols. 'Field Operations Bureau of Soils.' 'Snyder & Black, N.Y.' Scale 1:63,360. 1 inch = 1 mile. ... Bureau of Soils.
1903. Burke, R. T. Avon (Richard Thomas Avon), 1878-cartographer. Shows soil types classification by colors and symbols.; Field Operations, Bureau of Soils, 1903.; Julius Bien & Co. Lith. N.Y. Scale 1:63,360. 1 in... Bureau of Soils.
1904. Bennett, Frank (Cartographer) and Ely, Charles W. Shows soil types classification by colors and symbols. 'Field Operations, Bureau of Soils, 1904.' 'Julius Bien & Co. Lith. N.Y.' Scale 1:63,360. 1 ... Bureau of Soils.