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Scientific American, Vol. 31, No. 19 (1874) (1874)

leaf 15

An illustration from Scientific American, Vol. 31, No. 19 (1874), 1874, leaf 15
enty per Cent in Fuel of Soda to remove Scale, and prevent further incrusta- tion. It 1s adapted to Steam Boilers of every desecrip- tion, Marine or Inland. It is in Barrels 500 Ib., STEAM BOILER Saves ten to trenty per cent. CHALMERS SPENCE % Bbls. 250 1b., 4 Bbis. 125 1b., price 10 cents per Ib.,… … Lea ead a age ia apd ee Poet Pee . CENTRIC MILLS—For grinding Bones, Ores, Sand, | Qne copy, three months (postage included).... 1.00 cently purchased, by which process perfect uniformity John W. Mason & Co., 43 Broadway, New York. Old Crucibles, Fire Clay, Guanog, Oi] Cake, Feed, Corn, of shape…

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