[082-19] The Occurrence of Regispongia contorta (King) in Chesterian (Upper Mississippian) Rocks of Southern Illinois and Western Kentucky

G.H. Fraunfelter

The Occurrence of Regispongia contorta (King) in Chesterian (Upper Mississippian) Rocks of Southern Illinois and Western Kentucky

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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