Grimes, E. J. (Earl Jerome),1893-cartographer. and Stevens, E. H. (Edmund H.),1892-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. U.S. Dept. of Agriculture, Bureau of Soils; State of Indiana, Department of Geology; soils surveyed by E.J. Grimes of the Indiana Department of Geology and E.H. Stevens of the U.S. Department of Agriculture.