1949. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1940. Topography by plane-table methods 1947";Relief... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
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1949. Geological Survey (U.S.). (W 88⁰45ʹ00ʺ--W 88⁰30ʹ00ʺ/N 39⁰30ʹ00ʺ--N 39⁰15ʹ00ʺ);"Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1949. Prepared under the direction of the Chief of Staff, U.S. Air Force for the Aeronautical Chart Service.; Base no. 1, March 1949.; 31 March 1949.; AL... The Survey.
1949. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1949. 1 map ; 24 x 24 cm "March 1949." Inset: Athletic plant ca 1:16,000.
1949. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1949. Dempsey, W. J., Duffner, R. T., and Henderson, John R. Includes text and location map. Scale 1:63360. United States Department of the Interior, Geological Survey; aeromagnetic survey 1947 by W.J. Dempse... For sale by United States Geological Survey.
1949. Dempsey, W. J., Duffner, R. T., and Henderson, John R. Includes text and location map. Scale approximately 1:75,600. By W.J. Dempsey, J.R. Henderson, R.T. Duffner; compilation directed By J.R. Henderson... For sale by United States Geological Survey.
1949. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1949. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1937, 1939 and 1941. Topography by plane-table metho... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).