Vols. 3-4 published by McGraw-Hill book company, New York. Vols. 1, 3, and 4 contain "List of books and periodicals referred to" "General bibliography of ore-dressing literature": v. 4, p. 2009-2052. ...
THE maintenance of the present standard of living of civilized man is dependent upon an adequate supply of metals, without which conditions would return to those of the Stone Age. The production and ...
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