A special report to the legislature upon the causes, kinds and amount of waste in mining anthracite illustrated by 35 figures of mining operations; a plan of an anthracite breaker; and a specimen sheet of the work of the Geological Survey in the anthracite coal fields
Gespeichert in:
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| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
Harrisburg
Board of Commissioners
1881
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| Schriftenreihe: | Second Geological Survey of Pennsylvania
A2 |
| Schlagworte: | |
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Tag hinzufügen | Beschreibung: | XIII, 134 S., [16] gef. Bl. Ill., graph. Darst., Kt. |
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