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Psum Jaw Crushing Production Line From Scotland

Mr.Darwin found, near buenos ayres, a shallow lake of brine, which in summer is converted into a field of snow-white salt.The border of the lake is a fetid, black mud, in which are embedded large crystals of gpsum three inches long, and of sulphate of soda.The mud, in many places, was thrown up by numbers of some kind of worm.