ADVERTISEMENT. Ill 
PP 1. Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch of 
the geology of southeastern A laska, by A. H. Brooks. 1902. 120 pp., 2 pis. 
PP 2. Reconnaissance of the northwestern portion of Seward Peninsula, Alaska, by A. J. Collier. 
1902. 70 pp., 11 pis. 
PP 8. Geology and petrography of (rater Lake National Park, by J. S. Diller and H. B. Patton 
1902. 167 pp., 19 pis. 
PP 10. Reconnaissance from Fort Hamlin to Kotzebne Sound, Alaska, by way of Dall, Kanuti, Allen, 
and Kowak rivers, by W. ('. Mendenhall. 1902. 68 pp., 10 pis. 
PP 11. Clays of 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. 
PP 13. Drainage modifications in southeastern Ohio and adjacent parts of West Virginia and Ken- 
tucky, by W. G. Tight. 1903. Ill pp., 17 pis. 
B 208. Descriptive geology of Nevada south of the fortieth parallel and adjacent portions of Cali- 
fornia, by J. E. Spurr. 1903. 229 pp., 8 pis. 
B 209. Geology of Ascutney Mountain, Vermont, by R. A. Daly. 1903. 122 pp., 7 pis. 
\VS 78. Preliminary report on artesian basins in southwestern Idaho and southeastern Oregon, by 
I. C. Russell. 1903. 51 pp., 2 pis. 
PP 15. Mineral resources of the Mount Wrangell district, Alaska, by W. C. Mendenhall and F. C. 
Schrader. 1903. 71 pp., 10 pis. 
PP 17. Preliminary report on the geology and water resources of Nebraska west of the one hundred 
and third meridian, by N. H. Darton. 1903. 69 pp., 13 pis. 
B 217. Notes on the geology of southwestern Idaho and southeastern Oregon, by I. C. Russell. 1903. 
83 pp., 18 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. 
PP21. The geology and ore deposits of the Bisbee quadrangle, Arizona, by F. L. Ransome. 1904. 
168 pp., 29 pis. 
\VS 90. Geology and water resources of part of the lower James River Valley, South Dakota, by J. E. 
Todd and C. M. Hall. 1904. 47 pp., 23 pis. 
PP25. The copper deposits of the Encampment district, Wyoming, by A. C.Spencer. 1904. 107 pp., 2 pis. 
PP 26. Economic resources of northern Black Hills, by J. D. Irving, with chapters by S. F. Emmons 
and T. A. Jaggar, jr. 1904. 222 pp., 20 pis. 
PP 27. Geological reconnaissance across the Bitterroot Range and the Clearwater Mountains in Mon- 
tana and Idaho, by Waldemar Lindgren. 1904. 122 pp., 15 pis. 
PP 31. Preliminary report on the geology of the Arbuckle and Wichita mountains in Indian Terri- 
tory and Oklahoma, by J. A. Taff, with an appendix on reported ore deposits in the Wichita 
Mountains, by H. F. Bain. 1904. 97 pp., 8 pis. 
B 235. A geological reconnaissance across the Cascade Range near the forty-ninth parallel, by G. O. 
Smith and F. C. Calkins. 1904. 103 pp., 4 pis. 
B 236. The Porcupine placer district, Alaska, by C. W. Wright. 1904. 35 pp., 10 pis. 
B 237. Igneous rocks of the High wood Mountains, Montana, by L. V. Pirsson. 1904. 208 pp., 7 pis. 
B 238. Economic geology of the Iola quadrangle, Kansas, by G. I. Adams, Erasmus Haworth, and 
W. R. Crane. 1904. 83 pp., 1 pi. 
PP 32. Geology and underground water resources of the central Great Plains, by N. H. Darton. 1905. 
433 pp., 72 pis. 
WS 110. Contributions to hydrology of eastern United States, 1904; M. G. Fuller, geologist in charge. 
1905. 211 pp., 5 pis. 
B 242. Geology of the Hudson Valley between the Hoosic and the Kinderhook, by T. Nelson Dale. 
1904. 63 pp., 3 pis. 
PP 34. The Delavan lobe of the Lake Michigan glacier of the Wisconsin stage of glaciation, and asso- 
ciated phenomena, by W. C. Alden. 1904. 106 pp., 15 pis. 
PP 35. Geology of the Perry Basin in southeastern Maine, by G. O. Smith and David White.. 1905. 
107 pp., 6 pis. 
B 243. Cement materials and industry of the United States, by E. C. Eokel. 1905. 395 pp., 15 pis. 
Correspondence should be addressed to — 
The Director, 
United States Geological Survey, 
May, 1905. Washington, D. C. 
