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KUSTEL, Guido. Nevada and California processes of Silver and 

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LAUR, M. P. De la Production des Metaux Precieux en California. 



8vo. 132 pp. Paris, 1862. 



PHILLIPS, J. Arthur. The Mining and Metallurgy of Gold and 

 Silver. 8vo. 532 pp. London, 1867. 



PRIME, Frederick, Jr. Desilverization of Lead by Zinc. Vol. vn., 



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RUDOLPH, A. Die edlen Metalle und Schmucksteine. 



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WINKLER. Die europaische Amalgamazion der Silbererze und sil- 

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COPPER, LEAD, TIN, ZINC, NICKEL AND COBALT. 



BRITISH Patent Office. Specifications of Patents for 



Machinery for the Manufacture of Sheet Tin. J. H. John 

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Obtaining Nickel and Cobalt. H. H. Vivian, Patentee. 



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Smelting Zinc Ores. M. SchafFner, Patentee. 



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COSTE, Leon, and Perdonnet, Auguste. Memoires Metallurgiques 

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DER ZINK. 4to. 52 pp., XV. plates. Breslau, 1857. 



EBERMAYER, Edward. Ueber die Nickelgewinnung auf der Auro- 

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EGLESTON, Thomas. Tables to Illustrate the Metallurgical Lectures 

 delivered at the School of Mines, Columbia College, New- 

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GENTH, F. A. Contributions to Metallurgy. No. 1, Analysis of 

 Chinese Coins. Vol. VII., Pamphlets. Octavo series. 8vO. 6pp. 



GURLT, A. Bemerkungen tiber die neueren Fortschritte des Kup- 

 ferhiittenprozesses. 8vo. 42 pp. Freiberg, 1852. 



HARTMANN, Carl. Das Kupfer und das Zink. 



8vo. 328 pp. Weimar, 1863. 



Ueber die Eisen Kupfer Zinc und Bleihutten Betrieb. 



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 HUBERT, Alois von. Anleitung durch Colorimetrie den Kupper- 

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8vo. 58 pp. Vienna, 1852. 

 HUGHES, G. W. Report relative to the Working of Copper Ore. 



Vol. VII., Pamphlets. Octavo series. 



8vo. 58 pp. Washington, 1844. 



HUXT, T. Sterry, and Douglass, Jas., Jr. A New Process for the 

 Extraction of Copper from its ores, with notes on the treat 

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