. 



GOLD ELSEWHERE IN UNITED STATES AND CANADA. 253 



erally low grade, and need careful management to be made profit- 

 able. 1 



2.13.02. Example 45b. Ishpeming, Mich. In the metamorphic 

 rocks of the iron-bearing areas in the Lake Superior region gold- 

 bearing quartz veins have been discovered and several mines have 

 been opened. The Ropes mine is the best known and has yielded 

 some good ore. 2 



ALASKA. 



2.13.03. Geology. Our knowledge of the geology of Alaska is 

 very fragmentary, and is chiefly obtained from the reports of ex- 

 ploring expeditions along the coast and up the Yukon River. The 

 Cretaceous and Tertiary rocks of Washington and of British 

 America extend north into the southern portion. Igneous rocks 



1 W. P. Blake, A. Eaton, D. Olmstead, C. U. Shepard, the elder Silli- 

 man, and others have made many references to gold in the Southern States 

 in the early numbers of the American Journal of Science. H. M. Chance, 

 " Auriferous Gravels of North Carolina," Amer. Philos. Soc., July 15, 1881, 

 p. 477. H. Credner, " Report of Explorations in the Gold Fields of Virginia 

 and North Carolina," Amer. Jour, of Mining, 1868, pp. 361, 377, 393, 407. W. 

 B. Devereux, " Gold and its Associated Minerals at Kings Mountain, North 

 Carolina," Engineering and Mining Journal, Jan. 15, 1881, p. 39. S. F. 

 Emmons, "Notes on the Gold Deposits of Montgomery County, Mary- 

 land," June 11, 1881, p. 397. F. A. Genth, "Contributions to Mineralogy," 

 Amer. Jour. Sci., ii., XXVIII. 246. F. C. Hand, " Southern Gold Fields," 

 Engineering and Mining Journal, Dec. 7, 1889, p. 495. G. B. Hanna, 

 " Fineness of Native Gold in the Carolinas and Georgia," Ibid., Sept. 18, 

 1886, p. 201. W. C. Kerr, " Gold Gravels of North Carolina," M. E., VIII. 

 462. "Some Peculiarities in the Occurrence of Gold in North Carolina," 

 M. E., X. 475 ; also Geological Report on North Carolina, 1875. O. M. 

 Lieber, " Ueber das Gold-vorkommen in North Carolina," Gangstudien, 

 Vol. III., p. 253. Lieber states that Whitney's Metallic Wealth was writ- 

 ten to "boom " certain mines ! " Gold in South Carolina," Gangstudien, 

 'Vol. Ill:, pp. 253, 481. P. H. Mell, " Auriferous Slate Deposits in South- 

 ern Mining Regions," M. E., IX. 399. W. B. Phillips, "The Lower 

 Gold Belt of Alabama," Bull. No. 3, Geol Survey Ala., 1892. E. G. 

 Spillsbury, " Gold Mining in South Carolina," If. E., XII. 99; Engineer- 

 ing and Mining Journal, June 23, 1883, p. 362. A. Thies and W. B. 

 Phillips, "The Thies Process, etc., at the Haile Mine, South Carolina," 

 M. E., September, 1890. A. Thies and A. Mezger, " Geology of the Haile 

 Mine," If. E., September, 1890. 



2 C. D. Lawton, Rep. Mich. Com. of Mineral Statistics, 1887, p. 167. 

 "The New Michigan Gold Field," Engineering and Mining Journal, Sept. 

 22, 1888, p. 238. M. E. Wadsworth, Am. Rep. Mich. State Geologist, is- 

 sued January, 1892. 



