Chambers

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Appearance of the chambers. The miners, when they branch off from the main shaft or avenue, leave pillars of coal about eighteen feet square, to support the roof or mass above. These huge pillars were crushed by the great weight upon them, in the accident recorded.

Keywords

American Revolution, mining cars, mine, chambers

Galleries

Mining

Source

Benson J. Lossing, The Pictorial Field-Book of the Revolution (New York: Harper & Brothers, 1851)I:379

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