1915. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1911-1913.";"Surveyed in cooperation with the State of Illinois."; (W 87⁰45ʹ00ʺ--W 87⁰30ʹ00ʺ/N 38⁰45ʹ00ʺ--N ... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill).
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1915. Hollingsworth, John McHenry, 1823-1889 and Kingsbury, Robert C. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 79. Scale approximately 1,950,000. Department of Geography, Indiana University.
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.
1915. Grimes, E. J. (Earl Jerome),1893-cartographer. Relief shown by contours. Shows distribution of soil types by colors and symbols. In lower margin: A. Hoen & Co. Baltimore, Md. Scale approximately... The Bureau.
1915. Barrett, Wendell, Bushnell, T. M. (Thomas Mark),1889-1976, and Grimes, E. J. (Earl Jerome),1893-cartographer. Detached from: Soil survey of Starke County, Indiana / E.J. Grimes, Wendell Barrett, and T.M. Bushnell. In 40th Annual report of Department of Geol... Indiana Department of Geology and Natural Resources, Fort Wayne, and Fort Wayne Printing Company.
1915. Relief shown by contours.; Shows distribution of soil types by colors and symbols.; In lower margin: Engraved and published by the U.S. Geological ... The Bureau.
1915. Bushnell, T. M. (Thomas Mark),1889-1976 and Erni, C. P. (Chester Prall),1896-cartographer. Shows soil types classification by colors and symbols. 'Field Operations, Bureau of Soils, 1915.' 'Snyder & Black, N.Y.' Scale 1:63,360. 1 inch = 1... The Bureau.