System of tunnels and excavations for the extraction of coal, diamonds, gold and other ores, for which Sir Humphry Davy invented a type of safety lamp
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Related clues
- An excavation for the extraction of coal, gems and ores; the 'gallery' of an insect in a leaf; or, historically, a passage under a besieged fortress to give secret ingress or to blow it up
- Happy workplace?
- A colliery such as the one depicted in many of the artworks by the Northumberland Pitmen Painters of the Ashington Group
- 'None for you!'
- 'Yours, __ & Ours'; Dennis Quaid/Rene Russo film
Possible answers
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