212 
IV. Bucher- und Zeitscliriftenscliau. 
b) Steinkolile und Braiuikolile. — The southern part of the Cahaba coal field, 
Alabama, by Charles Butts; The Powell Mountain coal field, Scott and Wise 
counties, Va., b}" M. R. Campbell and E. G. Woodruff; The eastern part of the 
Bull Mountain coal field, Montana, by C. T. Luptox; Preliminary report on 
the Coos Bay coal field, Oregon, by J. S. Diller and M. A. Pishel; The Black 
Mesa coal field, Arizona, by M. R. Campbell and H. E. Gregory; Coal deposits 
near Pinedale, Navajo County, Ariz., by A. C. Veatch; Coal in San Benito County, 
Cal., by M. R. Campbell. 
Nr. 466. Marshall, R. B. Retracement of the boundary line between Idaho 
and Washington from the junction of Snake and Clearwater rivers northward to 
the international boundary. 1911. 39 S., 7 Taf. 
Nr. 470. Hayes, C. W. u. Lixdgrex, W.: Contributions to economic geology 
(short papers and preliminary reports). 1910. Part I. Metals and nonmetals, 
except fuels. 1911. 558 S., 17 Taf. 
Enthalt die folgenden Einzelabhandlungen: 
a) Phosphates in Montana, by H. S. Gale. 
b) Gold und Silber. — The auriferous gravels of the Trinity River basin, Cali¬ 
fornia, by J. S. Diller; The economic geology of Carson camp, Hinsdale County, 
Colo., by E. S. Larsex; Geology and mineralization of the upper St. Joe River 
basin, Idaho, by J. T. Pardee; Gold-bearing groimd moraine in northwestern 
Montana, by F. C. Schrader; Geologic relation of ore deposits in the Elkhorn 
Mountains, Montana, by R. W. Stoxe; Notes on the economic geology of the Ram¬ 
sey, Talapoosa, and White Horse mining districts, in Lyon and Washoe Comities. 
Nev., by J. M. Hill; The ore deposits near Pinos Altos, N. Mex., by Sidxey Paige. 
c) Kupfer. — Metalliferous ore deposits near the Burro Mountains, Grant 
Comity, N. Mex., by Sidxey Paige; Preliminary report on the mineral deposits 
of Ducktown Tenn., byL W. H. Emmoxs and F. B. Laxey. 
d) Blei und Zink. — Notes on lead and copper deposits in the Bear River 
range, Idaho and Utah, by R. W. Richards; Lead and zinc deposits in the Metaline 
mining district, northwestern Washington, by Howlaxd Baxcroft. 
e) Seltene Metalle. — The arsenic deposits at Brinton, Va., by F. L. Hess. 
f) Eisen und Mangan. — Iron ores in the Montevallo-Columbiana region, 
Alabama, by Charles Butts. 
g) Baumaterialien. — Variegated marble southeast of Calera, Shelby County, 
Ala., by Charles Butts; Supplementary notes on the granites of Massachusetts, 
by T N. Dale; Clay near Callian, El Paso County, Colo., by G. B. Richardsox; 
Clay resources of the Murpliysboro quadrangle, Illinois, by E. W. Shaw; Notes on 
some clays from Texas, by Alexaxder Deussex; Gypsum deposits in Eagle 
County, Colo., by E. F. Burchard. 
i) Mineralfarben. — Paint shales of Pennsylvania, by B. L. Muller. 
j) Scliwefel imd Scliwefelkies. — Sulphur deposits near Soda Springs, Idaho, 
by R. W. Richards and J. H. Bridges. 
k) Verschiedene Produkte der Nichtmetalle. — The types, modes of occur¬ 
rence, and important deposits of asbestos in the United States, by J. S. Diller ; 
Dolomite for flux in the vicinity of Montevallo, Shelby County, Ala., by Charles 
Butts; Graphite near Dillon, Mont., by x4. N. Wixchell; Fluorspar near Deming, 
N. Mex., by N. H. Dartox and E. F. Burchard. 
Nr. 471. Campbell, M. R.: Contributions to economic geology (short papers 
and preliminary reports) 1910. Part II. Mineral fuels. 1912, 663 S., 15 Fig., 
62 Taf. 
Enthalt die folgenden Einzelabhandlungen: 
Petroleum und Naturgas.— (a) The Campton oil pool, Kentucky, by M. J. 
Muxx; Oil and gas development in Knox County, Ivy., by M. J. Muxx; The 
Fayette gas field, Alabama, by M. J. Muxx; The Powder River oil field, Wyoming, 
by C. H. Wegemaxx; Geology of the San Juan oil field, Utah, by E. G. Woodruff; 
