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Keywords:
TUNNELS,
RAILWAYS,
ALIGNMENT,
SETTING OUT,
INSTRUMENTS,
SINKING,
SHAFTS,
HEADINGS,
MACHINERY,
COMPRESSED,
AIR,
PLANT,
DRILLS,
VENTILATION,
BRICKWORK,
LININGS,
CONSTRUCTION,
TUNNELLING,
DRIVING,
THEODOLITES,
INSTRUMENTATION,
DRILLING,
WATER,
UNDERGROUND,
SURVEYS,
SURVEYING,
DORE,
CHINLEY,
ENGLAND,
TOTLEY,
COWBURN,
SHEFFIELD,
EDALE,
UK
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© Thomas Telford and ICE
1894
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