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Scientific American, Vol. 26, No. 25 (1872) (1872)
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ted and moved main free to revolve with the two hot air flues which project other hand, are less soluble in soluble glass than in water. along, while within the cylinders the grain is constantly sub- from the heater, F, as shown in Fig.1. Gis an elevator for rr 2 oe jected to the action of the… … Our engraving shows a novel form of pestle to be used in hulling rice, coffee, etc., either by hand or machinery. It is © 1872 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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