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Scientific American, Vol. 68, No. 20 (May 1893) (1893)

leaf 8

An illustration from Scientific American, Vol. 68, No. 20 (May 1893), 1893, leaf 8
, and comprises 14 mines, found that coal dust plays a most important role in and thirty-two inches in diameter, about the same viz., San Barnabe, La Luz, San Jose, Santa Clara, height as a dining table ; 3,534 of them were fired on mine explosions, and the miner's " fire damp " may be Refugio, San… … thur Smithells, of the To many people a Mexi- Yorkshire College, Leeds, can silver mine is close kin ^>^v of separating the inner to a Spanish castle, but from the outer portion of the fact remains that the % the Bunsen flame, each most productive silver • V^,.;;-:..:' burning independently of…

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