449 resultados para Coal mines and mining.


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At head of title: 89th Congress, 1st session, Committee print.

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Includes bibliography.

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At head of title: Canada, Department of mines, Geological survey branch ...

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At head of title: 88th Cong., 2d sess. Committee print.

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1897/1898 includes: 1st biennial report of Factory, Mill and Railway Inspection. [8th] biennial report of State Inspector of Coal Mines.

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"Labor laws of Michigan" and "Compulsory education": 1st report, p. 478-514.

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Latest issue consulted: 2004, v. 1.