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Gases met with in mines ; Mine ventilation ; Economic geology of coal ; Prospecting for coal and location of openings ; Shafts, slopes and drifts ; Methods of working coal mines ; Electric hoisting and haulage ; Electric pumping, signaling and lighting ; Electric coal-cutting machinery
Content Provider | Internet Archive |
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Author | International Correspondence Schools , International Textbook Company |
Organization | University of Wisconsin - Madison |
Language | English |
Publisher | Scranton [Pa.] : International Textbook Co. |
Publisher Date | 1903-01-01 |
Access Restriction | Open |
Subject Keyword | Coal mines and mining |
Content Type | Text |
Resource Type | Book |