Design – Architectural – Coal Mine ventilation

Design - Architectural - Coal Mine ventilation

A treatise on the coal mines of Durham and Northumberland : with information relative to the stratifications of the two counties: and containing accounts of the explosions from fire-damp, which have occurred therein for the last twenty years; their causes, and the means proposed for their remedy, and for the general improvements of the mining system, by new methods of ventilation, &c. (1816). Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

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