[046-20]Pennsylvanian Insects of Illinois

Richardson, Eugine S., Jr.

Pennsylvanian Insects of Illinois

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[01-21] Recent Advances in Spectroscopy*

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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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