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Evaporating
Evaporating sea water in iron pots to obtain salt
An engraving depicting the process of evaporating brine
An engraving depicting a spirit still, patented
Krasnovodsk heat station, 1980
Producing salt by evaporating sea water in salt
Producing salt by evaporating sea water in salt
South Durham Salt Works, England. Shovelling salt
Producing salt by evaporating natural brine by
Evaporating pots of brine in a natural hot spring
Alum processing
Steeping, evaporating and crystallising, Hurlet Alum Works
East Africa - Eritrea - Massawa - Salt Flats at Gherar
Sugar production in the West Indies in the ?
Suez Canal - Egypt
CHINA CLAY QUARRY
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