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Scientific American, Vol. 73, No. 13 (September 1895) (1895)
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bituminous coal is one of the mines of the system of the "Philadelphia by lifting a shutter, when a new charge is taken into are pretty well scattered over the country. But few the picking box from the feed shute on the other side. and Reading Coal and Iron Company. people, however, realize the… … PENNSYLVANIA COAL MINING—BOYS PICKING COAL AT THE BAST COLLIEEY.-Fig. 2. © 1895 SCIENTIFIC AMERICAN, INC.Inches · Phororhacos · Illustrated · Munn · Scientific American · Edition · Express money · Coloring matter · Coupling bar · Perspective elevation · Thirty years · Gas engine · Perspective elevations · Sailing vessel · Building edition
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