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Scientific American, Vol. 53, No. 12 (1885) (1885)
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ed by a silk stands, and at the time when a measurement is being when blown off from disintegrating the mortar in an fiber in a mass of copper, which serves as a very ef- made, no greataccuracy is attainable. opposite wall, some boards were set up to receive the fectual damper, and makes it… … © 1885 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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