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Slag-wool.

A non-combustible and noncon-ducting material made from the slag of a cupolafur-nace, by directing upon the slag in its fluid state, as it runs from the furnace, a strong jet of steam. By this the slag is thrown, in a condition of fine fibers, into a cast-iron chamber or receptacle prepared and placed for the purpose, from which it is gathered in a form resembling wool. It was shown at the Vienna Exhibition by an establishment at Osnabrueck.

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