 | 1906 - 1010 Seiten
...28. p. 355; Verwertung dps Torfes: Ocsterreiehischc Chemiker-Zeitung, vol. 5, p. 385. Brooks, A. II., Coal resources of Alaska: Twenty-second Ann. Rept. US Geol. Survey, pt. 3, pp. 570, 571. Dal, Adolf, The utilization of peat: Eng. Mag., vol. 24, p. 204. Electrical manufacture... | |
 | Philip Creveling Warman - 1903 - 728 Seiten
...some notes on it, though n Brooks, AH, Coal resources of Alaska: Twenty-second Ann. Kept. US Gcol. Survey, pt. 3, 1902, p. 559. the locality was not...relation to the coal formation is not known to have been definitely determined. Tin; coal seam mined is reported to be slightly less than и feet in thickness.... | |
 | Geological Survey (U.S.) - 1906 - 432 Seiten
...Published also as a separate. Washington, Government Printing Office, 1901. Cover and pp. 1-5. The coal resources of Alaska: Twenty-second Ann. Rept. US Geol. Survey, pt. 3, 1901, pp. 515-571. (Map.) The placer gold fields of the Nome region: Mining and Metallurgy, vol. 24,... | |
 | 1911 - 382 Seiten
...valued at $5,338,709; and about $100,000 worth of tin. The rapid advance of the mining 1 Brooks, AH, The coal resources of Alaska: Twenty-second Ann. Rept. US Geol. Survey, pt. 3, 1902, pp. 515-571. Martin, GC, The Alaska coal f1elds: Bull. U. 8. Geol. Survey No. 314, 1907, pp.4O-46 Brooks,... | |
 | Geological Survey (U.S.) - 1906 - 428 Seiten
...Published also as a separate. Washington, Government Printing Office, 1901. Cover and pp. 1-5. The coal resources of Alaska: Twenty-second Ann. Rept US Geol. Survey, pt. 3, 1901, pp. 515-571. (Map.) The placer gold fields of the Nome region: Mining and Metallurgy, vol. 24,... | |
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Coal resources of Alaska: Twenty-second Ann. Rept. US Geol. Survey, pt. 