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Keywords:
SPONTANEOUS,
COMBUSTION,
COLLIERIES,
COAL,
MINES,
FRICTION,
SLIPS,
OXIDATION,
PYRITES,
PILLARS,
PREVENTION,
AIR,
CURRENTS,
FIRES,
MINING,
HEAT,
DOYET,
FRANCE,
EUROPE
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© Thomas Telford and ICE
1884
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