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The iron ores of Maryland with an account of the iron industry ...Singewald, Joseph T. January 1911 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1909. / Life. Reprinted from Maryland geological survey [report] vo. IX, 1910.
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The iron ores of Maryland with an account of the iron industry ...Singewald, Joseph T. January 1911 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1909. / Life. Reprinted from Maryland geological survey [report] vo. IX, 1910.
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"Project" for the treatment of an iron orePack, James A. January 1877 (has links) (PDF)
Thesis--University of Missouri, School of Mines and Metallurgy, 1877. / The entire thesis text is included in file. Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed April 29, 2009)
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