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Scientific American, Vol. 44, No. 9 (February 1881) (1881)
leaf 3
h the surface is finished makes a light roof, value of the different varieties. sible and valuable processes, extending back to its original which is not only air and water tight, but an effective non- Prior to 1868 Mr. Johns had been for several years prose- adaptation to such uses, and covering… … entirely new industry of large magnitude, the magnitude of this branch of the business. one which has proved of great value to the The manner of grinding and mixing is differ- public, and for which there yet appears to be BOILER AND FIFE COVERINGS. © 1881 SCIENTIFIC AMERICAN, INCPatented · Patents · Asbestos · Treatise · Manufacture · Iron · Scientific American · Practical · Sun spot · Pencil holder · Sulphuric acid · Boiling point · Practical treatise · Tail feathers · Electric light · Wood working · Orleans cotton
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