II ADVERTISEMENT. 
B 198. The Berea grit oil sand in the Cadiz quadrangle, Ohio, by W. T. Griswold. 1902. 43 pp., 1 pi, 
PP 1. Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch ol 
the geology of southeastern Alaska, by Alfred Hulse Brooks. 1902. 120 pp., 2 pis. 
B 200. Reconnaissance of the borax deposits of Death Valley and Mohave Desert, by M. R. Campbell. 
1902. 23 pp.. 1 pi. 
B 202. Tests for gold and silver in shales from western Kansas, by Waldemar Lindgren. 1902. 21 up 
PP 2. Reconnaissance of the northwestern portion of Seward Peninsula, Alaska, by A. J. Collier. 
1902. 70 pp., 11 pis. 
PP 10. Reconnaissance from Fort Hamlin to Kotzebue Sound, Alaska, by way of Dall, Kanuti, Allen, 
and Kowak rivers, by W. C. Mendenhall. 1902. 68 pp., 10 pis. 
PP 11. Clays ol* the United States east of the Mississippi River, by Heinrich Ries. 1903. 298 pp., 9 pis. 
PP 12. Geology of the Globe copper district, Arizona, by F. L. Ransome. 1903. 168 pp., 27 pis. 
B 212. Oil fields of the Texas-Louisiana Gulf Coastal Plain, by C. W. Hayes and William Kennedy. 
1903. 174 pp., 11 pis. 
B 213. Contributions to economic geology, 1902; S. F. Emmons, C. W. Hayes, geologists in charge 
1903. 449 pp. 
PP 15. The mineral resources of the Mount Wrangell district, Alaska, by W. C. Mendenhall and 
F. C. Schrader. 1903. 71 pp., 10 pis. 
B 218. Coal resources of the Yukon, Alaska, by A. J. Collier. 1903. 71 pp., 6 pis. 
B 219. The ore deposits of Tonopah, Nevada (preliminary report), by J. E. Spurr. 1903. 31 pp.. 1 pi 
PP 20. A reconnaissance in northern Alaska, in 1901, by F. C. Schrader. 1904. 139 pp., 16 pis. 
PP 21. Geology and ore deposits of the Bisbee quadrangle, Arizona, by F. L. Ransome. 1904. 168 pp. 
29 pis. 
B 223. Gypsum deposits of the United States, by G. I. Adams and others. 1904. 129 pp., 21 pis. 
PP 24. Zinc and lead deposits of northern Arkansas, by G. I. Adams. 1904. 118 pp., 27 pis. 
PP25. Copper deposits of the Encampment district, Wyoming-Colorado, by A. C. Spencer. 1904 
107 pp., 2 pis. 
B 225. Contributions to economic geology, 1903; S. F. Emmons, C. W. Hayes, geologists in charge 
1904. 527 pp., 1 pi. 
PP 26. Economic resources of the northern Black Hills, by J. D. Irving, with contributions by S. B 
Emmons and T. A. Jaggar, jr. 1904. 222 pp., 20 pis. 
PP 27. A geological reconnaissance across the Bitterroot Range and Clearwater Mountains in Mor ; 
tana and Idaho, by Waldemar Lindgren. 1904. 123 pp., 15 pis. 
B 229. Tin deposits of the York region, Alaska, by A. J. Collier. 1904. 61 pp., 7 pis. 
B 236. The Porcupine placer district, Alaska, by C. W. Wright. 1904. 35 pp., 10 pis. 
B 238. Economic geology of the Iola quadrangle, Kansas, by G. I. Adams, Erasmus Haworth, an* 
W. R. Crane. 1904. 83 pp,ll pis. 
B 213. Cement materials and industry of the United States, by E. C. Eckel. 1905. — pp., 15 pis. 
B 246. Zinc and lead deposits of northwestern Illinois, by H. Foster Bain. 1904. 56 pp., 5 pis. 
B 247. The Fairhaven gold placers, Seward Peninsula, Alaska, by F. H. Moffit. 1905. 85 pp., 14 pli 
B 249. Limestones of southeastern Pennsylvania, by F. G. Clapp. 1905. 52 pp., 7 pis. 
B 250. The petroleum fields of the Pacific coast of Alaska, with an account of the Bering River cof 
deposit, by G. C. Martin. 1905. — pp., 7 pis. 
B 251. The gold places of the Fortymile, Birch Creek, and Fairbanks regions, Alaska, by L. IV 
Prindle. 1905. — pp., 16 pis. 
WS 117. The lignite of North Dakota and its relation to irrigation, by F. A. Wilder. 1905. — pp 
8 pis. 
PP 36. The lead, zinc, and fluorspar deposits of western Kentucky, by E. O. Ulrich and W. L. I 
Smith. 1905. —pp., 15 pis. 
PP 38. Economic geology of the Bingham mining district of Utah, by J. M. Boutwell, with a chapttn 
on areal geology, by Arthur Keith, and an introduction on general geology, by S. F. Emmon 
1905. —pp., — pis. 
PP 41. The geology of the central Copper River region, Alaska, by W. C. Mendenhall. 1905. — pp 
— pis. 
B 254. Report of progress in the geological resurvey of the Cripple Creek district, Colorado, by Waldtl 
mar Lindgren and F. L. Ransome. 1904. 36 pp. 
B 255. The fluorspar deposits of southern Illinois, by H. Foster Bain. 1905. 75 pp., 6 pis. 
B 256. Mineral resources of the Elders Ridge quadrangle, Pennsylvania, by R. W. Stone. 1 
— pp., — pis. 
B 259. Progress report of the division of Alaskan mineral resources for 1904, by A. H.Brooks ai 
others. 1905. —pp. 
B 260. Contributions to economic geology, 1904; S. K. Kim is, C. W. Hayes, geologists in chaif 
1905. —pp^—pls. 
I! 261. Preliminary report on the operations of the coal-testing plant of the United stales Geologie 
Survey at the Louisiana Purchase Exposition, St. Lous, Mo., 1904; E. W. Parker, .1. 
Holmes, M. R. Campbell, comm ttee in charge. 1905. 172pp. 
PFl 
