SERIES LIST. Ill 
B 256. Mineral resources of the Elders Ridge quadrangle, Pennsylvania, by R. W. Stone. 1905. 
86 pp., 12 pis. 
B 259. Report on progress of investigations of mineral resources of Alaska in 1904, by A. H. Brooks 
and others. 1905. 196 pp., 3 pis. 
B 260. Contributions to economic geology, 1904: S. F. Emmons and C. W. Hayes, geologists in charge. 
1905. 620 pp., 4 pis. 
B 261. Preliminary report on the operations of the coal-testing plant of the United States Geological 
Survey at the Louisiana Purchase Exposition, St. Louis, Mo., 1904; E. W. Parker, J. A. Holmes. 
and M. R. Campbell, committee in charge. 1905. 172 pp. (Out of stock.) 
B 263. Methods and cost of gravel and placer mining in Alaska, by C. W. Purington. 1905. 273 pp., 42 pis. 
PP 42. Geology of the Tonopah mining district, Nevada, by J. E. Spurr. 1905. 295 pp., 24 pis. 
PP 43. The copper deposits of the Clifton-Morenci district, Arizona, by Waldemar Lindgren. 1905. 375 
pp. , 25 pis. 
B 264. Record of deep-well drilling for 1904, by M. L. Fuller, E. F. Lines, and A. C. Veatch. 1905. 
106 pp. 
B 265. Geology of the Boulder district, Colorado, by N. M. Fenneman. 1905. 101 pp., 5 pis. 
B 267. The copper deposits of Missouri, by H. Foster Bain and E. O. Ulrich. 1905. 52 pp., 1 pi. 
B 269. Corundum and its occurrence and distribution in the United States (a revised and enlarged 
edition of Bulletin No. 180), by J. H. Pratt, 1906. 175 pp., 18 pis. 
PP 48. Report on the operations of the coal-testing plant of the United States Geological Survey at 
the Louisiana Purchase Exposition, St. Louis, Mo., 1904; E. W. Parker, J. A. Holmes, M. R. 
Campbell, committee in charge. 1906. (In 3 parts.) 1,492 pp., 13 pis. 
B 275. Slate deposits and slate industry of the United States, by T. N. Dale, with sections by E. C. 
Eckel, W. F. Hillebrand, and A. T. Coons. 1906. 154 pip-, 25 pis. 
PP 49. Geology and mineral resources of part of the Cumberland Gap coal field, Kentucky, by G. H. 
Ashley and L. C. Glenn, in cooperation with the State Geological Department of Kentucky, 
C. J. Norwood, curator. 1906. 239 pp., 40 pis. 
B 277. Mineral resources of Kenai Peninsula, Alaska Gold fields of the Turnagain Arm region, by 
F. H. Moffit. Coal fields of the Kachemak Bay region, by R. W. Stone. 1906. 80 pp., 18 pis. 
B 278. Geologv and coal resources of the Cape Lisburne region, Alaska, by A. J. Collier. 1906. 54 pp., 
9 pis. 
B 279. Mineral resources of the Kittanning and Rural Valley quadrangles, Pennsylvania, by Charles 
Butts. 1906. --pp., 11 pis. 
B 280. The rampart gold placer region, Alaska, by L. M. Prindle and F. L. Hess. 1906. 54 pp., 7 pis. 
B 282. Oil fields of the Texas-Louisiana Gulf Coastal Plain, by N. M. Fenneman. 1906. 146 pp., 11 pis. 
PP51. Geology of the Bighorn Mountains, by N. H. Darton. 1906. 129 pp., 47 pis. 
B 283. Geology and mineral resources of Mississippi, by A. F. Cnder. 1906. — pp., 4 pis. 
B284. Report on progress of investigations of mineral resources of Alaska in 1905, by A. H. Brooks 
and others. 1906. 169 pp., 14 pis. 
Correspondence should be addressed to — 
The Director, 
United States Geological Survey, 
Washington, D. C. 
August, 1906. 
