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You can also check the Durham Mining Museum and Ian Winstanley's Site I have also used 'A Pit Terminology - Glossary Used in Coal Mining' a publication compiled by William Stukeley Gresley, dated 1883 and given to me by Philip Wyles.

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A review of rock cutting for underground mining: past ... WITS SPECIAL EDITION - VOLUME I . A review of rock cutting for underground mining: past, present, and future .

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