Tag Archives: Cady

[039-18]Reflections on Recent Diamond­-Drill Exploration in the Illinois Coal Field

Cady, Gilbert H. Reflections on Recent Diamond­-Drill Exploration in the Illinois Coal Field 039-18-print  

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[041-12]Coal Resources of Franklin County, Illinois

Cady, Gilbert H. Coal Resources of Franklin County, Illinois 041-12-print  

Posted in 1948, Transactions | Tagged , , | Leave a comment