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  2. Smelting American Iron Ores.

    The following is a digest of a lecture lately delivered in Philadelphia by a celebrated iron-mining expert: To smelt iron ores a fuel and a flux are necessary, and in this country four fuels ...

    Article : 548 words
  3. Mining at Broken Hill.

    For the week ended July 7 the returns from the different mines were as follow: — Broken Hill Proprietary Company: Ore treated, 7971 tons; bullion obtained, 960 tons; total silver contents, ...

    Article : 430 words
  4. THE MINER.

    During the past decade the uses of asbestos have become widely extended, and consequently brought to the knowledge of the great majority of those who live within range of our industrial ...

    Article : 1,166 words
  5. Advertising

    {No abstract available}

    Advertising : 129 words
  6. Compressed Air

    At the Chapin Mine, Iron Mountain, Michigan, che ore is taken from four shafts, ranging from 300ft to over 600ft in depth, and from an open pit of over an acre in area. The fourth shaft was ...

    Article : 325 words
  7. Sectional Water Jacket Furnace

    When carbonates of lead or copper or metallic copper ores contain a sufficient percentage of those metals to smelt without the addition of any other flux, their treatment in the water-jacket ... [ILLUSTRATED]

    Article : 267 words
  8. A Peculiarity of Bismuth.

    One of the very remarkable qualities of bismuth is that it expands as it cools to the extent of one thirty-second of its bulk. This peculiarity is taken advantage of in the way of alloying ...

    Article : 225 words
  9. Mining at Hillgrove.

    HILLGROVE, July 8.—The machinery of the Eleanora Company has been thorougly overhauled and is quite ready to start work on Monday. The dam at the mine is being raised ...

    Article : 266 words
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