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Effect of sealing on acidity of mine drainage

Use of ethyl mercaptan to detect leaks in natural-gas distribution systems

The acidity of several Pennsylvania streams during low water

A general review of the United States Bureau of Mines stream pollution investigation

The acidity of Black Lick, Two Lick and Yellow Creeks, Pennsylvania during low water in 1930

Acidity of drainage from high pyritic coal areas in Pennsylvania

Character of drainage from mines in the Thick Freeport coal bed, Pennsylvania

Some tests of acid-resistant pipe


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