PUBLIC A TTONS ON COPPER. 
Brooks, A. H. Reconnaissance from Pyramid Harbor to Eagle City, Alaska. 
In Twenty-first Ann. Rept. U. 8. Geol. Survey, Pt. II, pp. 331-391. 1902. 
Reconnaissance of a part of the Ketchikan mining district, Alaska. 
Professional Paper, U. S. Geol. Survey, No. 1, 116 pp. 1902. 
Douglas, J. The metallurgy of copper. In Mineral Resources U. S., 1882, 
pp. 257-280. 1883. 
The cupola smelting of copper in Arizona. In Mineral Resources U. S., 
1883-84, pp. 397-410. 1885. 
Gignoux, J. E. The manufacture of bluestone at the Lyon mill. Dayton, 
Nevada. In Mineral Resources U. S., 1882, pp. 297-305. 1883. 
Howe, H. M. Copper smelting. Bulletin U. S. Geol. Survey, No. 20-, 107 pp. 
1885. [Out of print.] 
Irving, R. D. The copper-hearing rocks of Lake Superior. Monograph V, 
U. S. Geol. Survey, 464 pp. 1883. 
Lindgren, W. The copper deposits of the ' : Seven Devils." Idaho. In Mining 
and Scientific Press, vol. 78, p. 125. 1899. 
Peters, E. D. The roasting of copper ores and furnace products. In Mineral 
Resources IT. S., 1882, pp. 280-297. 1883. 
The mines and reduction works of Butte City, Montana. In Mineral 
Resources IT. S., 1883-84, pp. 374 396. 1885. 
Rohn, O. Reconnaissance of the Chitina River and the Skolai Mountains, 
Alaska. In Twenty-first Ann. Rept. U. S. Geol. Survey. Pt. II, pp. 398-440. 
1901. 
Schrader, F. C. Reconnaissance of a part of Prince William Sound and the 
Copper River district, Alaska, in 1898. In Twentieth Ann. Rept. IT. S. Geol. 
Survey, Pt. VII, pp. 341-423. 1900. 
Schrader, F. C, and Spencer, A. C. The geology and mineral resources of a 
portion of the Copper River district, Alaska, IT. S. Geol. Survey. 1900. 
Vaughan, T. W. The copper mines of Santa Clara Province. Cuba. In Eng. 
and Min. Jour., vol. 72, pp. 814-81(5. 1901. 
Weed, W. H. Types of copper deposits in the southern United States. In 
Trans. Am. Inst. Min. Eng., vol. 30, pp. 449-504. 1901. 
Weed, W. H.. and Pirsson, L. V. Geology of the Castle Mountain mining 
district, Montana. Bulletin IT. S. Geol. Survey, No. 139, 164 pp. 1896. 
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