...which are used in summer to prepare common salt ; and the impurities, which rise to the surface, are removed by skimming. During the evaporation, a portion...bitter liquor is then removed into wooden coolers 8 feet long, 5 feet wide, and 1 foot deep. In these it remains twenty four hours, during which time,...

...pans which are used in summer to prepare common salt; and the impurities which rise to the surface are removed by skimming. During the evaporation, a portion...salt separates ; and this, as it is too impure for u^e, is reserved for the purpose of concentrating the brine in summer. The evaporated bitter li» quor...

...which are .used in summer to prepare common salt ; and (the impurities, which rise to the surface, are removed by skimming. During the evaporation, a portion...reserved for the purpose of concentrating the brine in sumr mer. The evaporated bitter liquor is then removed into wooden coolers eight feet long, five feet...

...usi'rJJ ill summer to prepare cftiiimb'ti salt; and the impurities; •which rise to the surface, are removed by skimming; During the evaporation, a portion...this, as it is too impure for uSe, is reserved for the p'nri pose of concentrating the brine in summer. The evnpo rated bitter liquor is then removed iiito...

...which are used in summer to prepare common salt; and the impurities, which rise to the surface, are removed by skimming. - During the evaporation, a portion...feet wide, and one foot deep. In these it remains twenty four hours, during which time, if the weather prove clear and cold, the sulphate of magnesia,...

...coldness of the weather the bittern is evaporated, during which, some common salt is separated and reserved for the purpose of concentrating the brine in summer. The evaporated brine is then removed into coolers, where, if the weather prove cold and clear,, Epsom salt crystallises,...

...which are used in summer to prepare common salt ; and the impurities which rise to the surface, are removed by skimming. During the evaporation, a portion...feet wide, and one foot deep. In these it remains '21 hours, during which time, if the weather prove clear and cold, the MAG sulphat of magnesia, or...

...coldness of the weather, the bittern is evaporated, during which, some common salt is separated and reserved for the purpose of concentrating the brine in summer. The evaporated brine is then removed into coolers, where, if the weather prove cold and clear, Epsom salt crystallizes...

...skimming. During the evaporation a portion of common salt separated, and this being too impure for use, was reserved for the purpose of concentrating the brine in summer. The evaporated bitter liquor was then removed into wooden coolers one foot deep, where it remained twenty-four hours, during which...

...skimming. During the evaporation a portion of common salt separated, and this being too impure for use, was reserved for the purpose of concentrating the brine in summer. The evaporated bitter liquor was then removed into wooden coolers one foot deep, where it remained twenty-four hours, during which...