[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

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[01-21] Recent Advances in Spectroscopy*

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[01-19] Farm Water Supply

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[01-18] The Relation of the State Academy of Science to the Natural History Surrounding the Chicago Academy of Sciences

The Relation of the State Academy of Science to the Natural History Surrounding the Chicago Academy of Sciences Author: Baker, F.C.

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