[036-34]Key Beds of the Pennsylvanian Section of Eastern Vermilion County, Illinois, and Vermillion, Warren, and Fountain Counties, Indiana

Alexander, J.W.

Key Beds of the Pennsylvanian Section of Eastern Vermilion County, Illinois, and Vermillion, Warren, and Fountain Counties, Indiana

Recent Advances in Spectroscopy* Author: Michelson, A.A.

Farm Water Supply Author: Bartow, Edward

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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Recent Advances in Spectroscopy* Author: Michelson, A.A.

Farm Water Supply Author: Bartow, Edward

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