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Mining techniques, 19th century

Mining techniques, 19th century

C021/7829

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Credit

MIDDLE TEMPLE LIBRARY / SCIENCE PHOTO LIBRARY MIDDLE TEMPLE LIBRARY / SCIENCE PHOTO LIBRARY

Caption

Mining techniques. The top diagram refers to the phenomenon of active creep, where the underlying rock moves around the coal deposits. The second diagram shows how the seams of coal can be worked out, but that pillars need to be put in place to prevent collapses like the one shown at left. The final diagram (bottom) shows an example of a mining ventilation system. Artwork from 'Encyclopaedia Metropolitana' (1845).

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