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Scientific American, Vol. 43, No. 19 (1880) (1880)
leaf 3
ces are worked alternately, one in the morning, a sec- Notwithstanding the care, however, which is taken in all ond in tie afternoon, and the third on the following morp- the previous parts of the work it is not until both scales and ing, their charges being always put in by weight, from the… … © 1880 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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