 | 1906 - 786 Seiten
...Beaver and northwestern Allegheny counties), by LH Woolsey. 1906. — pp., 8 pis. B 287. The Jiinenu gold belt, Alaska, by AC Spencer, and a reconnaissance of Admiralty Island, Alaska, by c! W. Wright. 1906. 161 pp.,37 pis. PP 54. The geology and gold deposits of the Cripple Creek district,... | |
 | 1906 - 1138 Seiten
...Economic geology of the Beaver quadrangle, Pennsylvania, by LH Woolsey. 1906. — pp. 8 pis. B 287. Juneau gold belt, Alaska, by AC Spencer, and A reconnaissance...Admiralty Island, Alaska, by CW Wright. 1906. 161 pp., 27 pl». PP 54. The geology and gold deposits of the Cripple Creek district, Colorado, by W. Lindgren... | |
 | 1906 - 1010 Seiten
...Economic geology of the Beaver cjiiadranglc, Pennsylvania, by LH Woolsey. 1906. — pp., 8 pis. B 287. Juneau gold belt, Alaska, by AC Spencer, and A reconnaissance of Admiralty Island Alaska by CW Wright. 1906. —pp., 27 pis. PPM. The geology and gold deposits of the ('ripple Creek district, Colorado, by Wnldemar... | |
 | 1908 - 874 Seiten
...quadrangle, Pennsylvania, by LH Woolsey. 1906. 132 pp., 8 pK B 287. Juneau gold belt, Alaska, by A C. Spencer, and A reconnaissance of Admiralty Island,...Alaska, by CW Wright. 1906. 161 pp.. 27 pis. PP 54. The geology and gold deposits of the Cripple Creek district, Colorado, by W. Lindgren and FL Ransome.... | |
 | 1907 - 1026 Seiten
...Economic geology of the Beaver quadrangle, Pennsylvania, by LH Woolsey. 1906. 132 pp., 8 pis. B 287. Juneau gold belt, Alaska, by AC Spencer, and A reconnaissance of Admiralty Island, Alaska, by CW Wsight. 1906. 161 pp., 27 pis. PPM. The geology and gold deposits of the Cripple Creek district, Colorado,... | |
 | 1906 - 1190 Seiten
...field, Alaska. Bull. No. 289. SPENCER, AU The Juneau gold belt. In Bull. 284. , and WRIGHT, CW The Juneau gold belt, Alaska, by AC Spencer and A reconnaissance of Admiralty Island, Alaska, by C. \V. V> right. Bull. No. 287. WRIGHT, FK and CW Mineral resources of the \Vrangell and Ketehikan... | |
 | 1906 - 734 Seiten
...the Matauuska coal field, Alaska. Bull. No. 289. SPENCER, AC, and WRIGHT, CW The Juneau gold l>elt, Alaska, by AC Spencer and A reconnaissance of Admiralty Island, Alaska, by CW Wright. Bull. No. 287. WRIGHT, FK and CW Mineral resources of the Wrangell and Ketchikan mining districts,... | |
 | 1907 - 968 Seiten
...(southern Beaver and northwestern Allegheny counties), by LH Woolsey. 1906. 132 pp., 8 pis. В 287. The w 8T J cun8 g l E W e<C 5 % v 1 ] $ (2 ׳ ] < c h1@? ^ 2j* g Alaskn. by C. \V. Wright. 1906. 161 pp., 37 pis. PP Ы. The geology and gold deposits of the Cripple... | |
 | 1907 - 874 Seiten
...(southern Beaver and northwest cm Allegheny counties), by LH Woolsey. 1906. 132 pp., 8 pis. H 'JsT. The Juneau gold belt, Alaska, by AC Spencer, and a reconnaissance of Admiralty Island, Alaskii.hyC. W Wright. 1906. 161 pp., 37 pis. PP54. The geology and gold deposits of the Cripple Creek... | |
 | 1906 - 1058 Seiten
...Alaska. Bull. 289. SPENCER, AC The Juneau gold belt. In Bull. 284. and WKIGHT, CW The Juneau gold l>elt, Alaska, by AC Spencer, and a reconnaissance of Admiralty Island, Alaska, by C. VV. Wright. Bull. No. 287. WHIHIIT, FE and CW Mineral resources of the Wraugell and Ketchikau mining... | |
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Ore deposits of the Silver Peak quadrangle, Nevada, by JE Spurr. 1906. 174 pp., 24 pis. B 289. A reconnaissance of the Matanuska... 
