948 resultados para Mine ventilation.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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November 1978.
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Bibliography: p. 41.
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Mode of access: Internet.
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"November 1954."
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Includes bibliographical references.
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Mode of access: Internet.
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Introduction by Henry James.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Double t.-p., with colored ornamental border.
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For 1915-1916, Sumner Smith continued the reporting of mining information in two monographs entitled: The mining industry in the Territory of Alaska during the calendar year 1915[-1916], issued as Bureau of Mines bulletins 142 and 153. At the same time, a Territorial Mine Inspector had also been appointed in 1915, and reports from this office were issued from 1915-1925/26 as: Report of the Territorial Mine Inspector to the Goveror of Alaska, etc.