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Scientific American, Vol. 61, No. 24 (1889) (1889)

leaf 13

An illustration from Scientific American, Vol. 61, No. 24 (1889), 1889, leaf 13
be applied in of Mining, Tunneling, and Quarrying Machinery. the latest, must approved ‘forms. IMNustrated with en~ This catalogue will be masled free to contractors, avy kind of weather. It is gravings drawn to scale, showing the form, position, pin general use. Licenses engineers, and to any one… … 43%... Price 10 cents. Forsale at this office and by all season to season. The air is kept dry and pure threugh- out the year at a temperature of from &° to 3°. Con. newsdealers in all partsofthe country , tained in SCIENTIFIC AMERICAN SUPPL¥MENT No. 116. TEx Price 10 cente. Tobe had at this…

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