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Keywords:
BORING,
WATER,
GEOLOGY,
GOVERNMENT,
UNDERGROUND,
SUBTERRANEAN,
BOREHOLES,
MACHINERY,
DRILLS,
DIAMONDS,
MILITARY,
WATER SUPPLY,
KARROO,
KAROO,
GROUNDWATER,
METHODS,
STEAM,
POWER,
DRILLING,
PLANT,
CAPE COLONY,
CAPE COLONY,
SOUTH AFRICA
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© Thomas Telford and ICE
1902
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