• 17 Geology
• 6 Mines and mineral resources
• 3 Mineral industries
• 2 Geology, Economic
• 2 Petroleum
• 2 Water-supply
• 1 Coal mines and mining
• 1 Conservation of natural resources
• 1 Environmental geology
• 1 Illinois State Geological Survey
• 1 Industrial minerals
• 1 Paleontology
• 1 Petroleum industry and trade
• 1 Soil erosion

• 2 Illinois. Department of Registration and Education
• 1 Bain, Harry Foster, 1872-1948
• 1 DeWolf, F. W. (Frank Walbridge), 1881-1957
• 1 Illinois State Water Survey
• 1 Illinois. Department of Energy and Natural Resources
• 1 Illinois. Department of Natural Resources
• 1 Illinois. General Assembly. Senate. Geologic Map Task Force
• 1 Illinois. General Assembly. Senate. Working Committee on Geologic Mapping
• 1 Illinois. Hazardous Waste Research and Information Center
• 1 Illinois. Natural History Survey Division
• 1 United States. Bureau of Mines
• 1 University of Illinois (Urbana-Champaign campus). Department of Mining Engineering
• 1 University of Illinois (Urbana-Champaign campus). Engineering Experiment Station

• 27 English

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