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Johannes Gadesden Johannes Anglicus, Anno 1516, says that Sea-Water may be sweetened four ways, viz. by filtrating thro' Sand: By clean Linnen laid over a Boiler, and squeesing the Moisture out, as from the Sponges: By Distillation: As alfo by thin Bowls made of white Virgin Wax, which 'tis said will free the Water from its Saltness, and from some part of its nauseous Bitter. But this is only a matter of curiosity, because but a very small Quantity can be thus prepared; and in order to make those waxen Bowls fit for farther Filtration, they must be cleansed from the Salt, by being washed in fresh Water. (en) |
