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Keywords:
HARBOURS,
MINES,
QUARRYING,
BLASTING,
EXPLOSIVES,
POWDERS,
BREAKWATERS,
SILT,
LIGHTHOUSES,
COSTS,
MASONRY,
RUBBLE MOUND,
CONSTRUCTION,
MATERIALS,
SUPERSTRUCTURES,
FOUNDATIONS,
FORESHORES,
DOVER,
HOLYHEAD,
WALES,
ENGLAND,
ANGLESEY,
UK
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© Thomas Telford and ICE
1876
