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Scientific American, New Series, Vol. 7, No. 13 (September 27, 1862) (1862)

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An illustration from Scientific American, New Series, Vol. 7, No. 13 (September 27, 1862), 1862, leaf 0
growth of the salt manufacture of Michi- per cent less per pound, and as they are made of far The several vata are placed on euccessive descend- gan; the business having within three years trans- less thickness in proportion to their diameter than ing steps, so that the brine may be drawn from one… … making is leading to many improvements in the pro- respects derivable from their use. Large as has been all expense of dipping and pumping in the process of cess of manufacture, and all of these which are of the demand for steel bells, it is probable that the manufacture. any importance we hope to…

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