Evening Republican, Volume 14, Number 82, Rensselaer, Jasper County, 6 April 1910 — Manufacture of Salt. [ARTICLE]

Manufacture of Salt.

Salt is obtained in the United States In several different forms and ways. From the mines it comes In blocks, and from strong brines it is obtained by evaporation or boiling by solar or artificial heat. Boiling is either conducted by putting it into long wooden troughs containing steam pipes, or in large open pans of iron or steel with direct heat beneath them, or in large vacuum pans in which the brine is boiled at a comparatively low pressure, or it is heated In closed tubles at a temperature much higher than that at which brine boils under ordinary atmospheric pressure.