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acid add drop add fragment Alaska ammonium ammonium molybdate anisotropism antimony aqua regia arsenic basal beds Birch Creek bismuth Bulletin California San California Univ Canyon cents chalcocite chalcopyrite chert chloride cobalt color gray conglomerate copper County Cretaceous Dennison Fork deposits district dredges drop of 1:5 effervesces Eocene etch evaporate fanglomerate FeCl3 FeClj feet thick formation fossils fumes tarnish Geological Survey gneiss gravel hardness hexagons HgCl2 HgClj negative HNO3 HNOi HNOj KCN negative KOH neg Leach original residue Leach residue limestone lower microscope miles mineral with 1:1 mining Miocene Mountain Named for exposures overlain overlies places Pleistocene Pliocene powder precipitate prisms quartz reagent region residue with drop River sandstone schist Seward Peninsula shale silver solution Southern California specimens stains iridescent Strong anisotropism surface Survey Bull Tanana tellurium thiocyanate tion transfer drop tuff U. S. Geol unconformably upper Valley Western California yellow Yukon
Page 109 - Pliocene and Pleistocene fossils from the Arctic coast of Alaska and the auriferous beaches of Nome, Norton Sound, Alaska, by WH Dall.
Page 109 - A geologic reconnaissance in southeastern Seward Peninsula and the Norton Bay-Nulato region, by PS Smith and HM Eakin. Bulletin 449, 1911, 146 pp. *Notes on mining in Seward Peninsula, by PS Smith.
Page 86 - March 4, 1921 (USC, title 48, sec. 444) , and other Acts relating to the mining and recovery of minerals on Indian and public lands and naval petroleum reserves; and for every other expense incident thereto, including supplies, equipment, expenses of travel and subsistence, the construction, maintenance, and repair of necessary camp buildings and appurtenances thereto...
Page 109 - Lisburne in 1901, by FC Schrader, with notes by WJ Peters. Professional Paper 20, 1904, 139 pp. 40 cents. *Geology and coal resources of the Cape Lisburne region, Alaska, by AJ Collier. Bulletin 278, 1906, 54 pp. 15 cents. 'Geologic investigations along the Canada-Alaska boundary, by AG Maddren. In Bulletin 520, 1912, pp. 297-314. 50 cents. *The Noatak-Kobuk region, by PS Smith. Bulletin 536, 1913, 160 pp. 40 cents. *The Koyukuk-Chandalar region, Alaska by AG Maddren. Bulletin 532, 1913, 119 pp.
Page 109 - Bonnifield region; scale 1:250,000; by JW Bagley, DC Witherspoon, and CE Giffin. In Bulletin 501. Not issued separately. Iditarod-Ruby region, reconnaissance map; scale, 1:250,000; by CG Anderson, WS Post, and others.
Page 109 - Kasaan Peninsula, Prince of Wales Island (No. 540A) ; scale, 1:62,500; by DC Witherspoon, RH Sargent, and JW Bagley. 10 cents retail or 6 cents wholesale. Also contained in Professional Paper 87.
Page 107 - LEASING WORK Part of the activities of the Alaskan branch are related to the proper conduct of mining work on the public mineral lands that have been or may be leased to private individuals or corporations under certain laws. Funds for this work throughout the United States are provided in a general item contained in the Interior Department appropriation act.
Page 109 - Bulletin 533, 1913, 140 pp. *Surface water supply of Seward Peninsula, Alaska, by FF Henshaw and GL Parker, with a sketch of the geography and geology by PS Smith, and a description of methods of placer mining, by AH Brooks ; including topographic reconnaissance map.