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Keywords:
IRRIGATION,
SCHEMES,
DAMS,
MORTAR,
IRRIGATION,
COSTS,
CANALISED,
RESERVOIRS,
AGRICULTURE,
PUMPING,
CONSTRUCTION,
CAPACITY,
CULTIVATION,
WATERWAYS,
GEZIRA,
SENNAR DAM,
BLUE NILE,
ASSUAN DAM,
ASWAN,
EGYPT,
SUDAN,
AFRICA
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© Thomas Telford and ICE
1926
