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>LXXVI. On certain accidents to which Coal-works are liable, particularly those of water bursting into the pits from old works that are near adjacent, as recently occurred at Heaton in Northumberland: the accidental explosions of Fire-damp, setting fire to the waste Coals in the works, as happened last Summer at Brora in Sutherland; and the spontaneous firing of loose small Coals and pyritic dirt
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LXXVI. On certain accidents to which Coal-works are liable, particularly those of water bursting into the pits from old works that are near adjacent, as recently occurred at Heaton in Northumberland: the accidental explosions of Fire-damp, setting fire to the waste Coals in the works, as happened last Summer at Brora in Sutherland; and the spontaneous firing of loose small Coals and pyritic dirt