Author: BRADBURY, J.C., GROGAN, R.M., and CRONK, R.J.
Title: Geologic Structure Map of the Northwestern Illinois Zinc-Lad District
Description: Urbana, Illinois State Geological Survey, 1956. Paperback. Small 4to. Stiff beige wrappers. 7pp. Maps, with large foldout map in rear pocket. Very good. Though internally very good, outer wrappers are age toned, lightly soiled and a bit edgeworn, with "Smallpox Creek Syncline not Prospected" penned large on front wrapper in what's surely an old prospector's handwriting; foldout map clean and nice, with several small fold separations expertly, archivally mended on verso. Tight, decent copy of Circular 214, a technical report with an attractive large foldout map. .

Keywords: Illinois & Midwest


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