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.