... (1912) 44, 781. H. 0. Hofinan Metallurgy of Copper. Revlscd by C. R. Ha? ward. McGraw- Hill Book Co., Nen York, 1924. Op. cit., 784. 442 Page 2. ...
...H. 0. Hofman, on " Gold-Milling in the Black Hills,"" and the paper describing the ... The inside copper plates, placed along the front, are 4 inch thick and are ...
AUTHOR
Rickard, T.A.
PUBLISHED
1896
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