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Coal measures and coal mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining

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1. https://ir.uiowa.edu/etd/3665
2. https://ir.uiowa.edu/cgi/viewcontent.cgi?article=3668&context=etd

Identifer	oai:union.ndltd.org:uiowa.edu/oai:ir.uiowa.edu:etd-3668
Date	01 January 1898
Creators	Hartman, Russell T.
Publisher	University of Iowa
Source Sets	University of Iowa
Language	English
Detected Language	English
Type	thesis
Format	application/pdf
Source	Theses and Dissertations
Rights	Material in the public domain. No restrictions on use., http://creativecommons.org/publicdomain/mark/1.0/