REFERENCES 



ECONOMIC GEOLOGY. — Contributions to Economic Geology (short papers and 

 preliminary reports) 1910: Part 1, Metals and nonmetals except fuels. C. W. 

 Hayes and Waldemar Lindgren. Bulletin U. S. Geological Survey No. 470. 

 Pp. 558, maps and sections. 1912. 



This volume comprises the following articles: The auriferous gravels of the 

 Trinity River basin, Cal., J. S. Diller; The economic geology of Carson camp, 

 Hinsdale County, Colo., E. S. Larsen; Geology and mineralization of the upper 

 St. Joe River basin, Idaho, J. T. Pardee; Gold-bearing ground moraine in north- 

 western Montana, F. C. Schrader; Geologic relation of ore deposits in the Elk- 

 horn Mountains, Mont., R. W. Stone; Notes on the economic geology of the Ram- 

 sey, Talapoosa, and White Horse mining districts, in Lyon and Washoe counties, 

 Nev., J. M. Hill; The ore deposits near Pinos Altos, N. Mex., Sidney Paige; 

 Metalliferous ore deposits near the Burro Mountains, Grant County, N. Mex., 

 Sidney Paige; Preliminary report on the mineral deposits of Ducktown, Tenn., 

 W. H. Emmons and F. B. Laney; Notes on lead and copper deposits in the Bear 

 River Range, Idaho and Utah, R. W. Richards; Lead and zinc deposits in the 

 Metaline mining district, northeastern Washington, Howland Bancroft; 

 The arsenic deposits at Brinton, Va., F. L. Hess; Iron ores in the Montevallo- 

 Columbiana region, Alabama, Charles Butts; Variegated marble southeast 

 of Calera, Shelby County, Ala., Charles Butts; Supplementary notes on the 

 commercial granites of Massachusetts, T. N. Dale; Clay near Calhan, El Paso, 

 County Colo., G. B. Richardson; Clay resources of the Murphysboro quadrangle, 

 Illinois, E. W. Shaw; Notes on sortie clays from Texas, Alexander Deussen; 

 Gypsum deposits in Eagle County, Colo.,~E. F . Burchard; Preliminary report on a 

 portion of the Idaho phosphate reserve, R. W. Richards and G. R. Mansfield; 

 Rock phosphate near Melrose, Mont., H. S. Gale; A reconnaissance of the phos- 

 phate deposits in western Wyoming, Eliot Blackwelder; Paint shales of Penn- 

 sylvania, B. L. Miller; Sulphur deposits, near Soda Springs, Idaho, R. W. 

 Richards and J. H. Bridges; The types, modes of occurrence, and important 

 deposits of asbestos in the United States, J. S. Diller; Dolomite for flux in the 

 vicinity of Montevallo, Shelby County, Ala., Charles Butts; Graphite near 

 Dillon, Mont., A. N. Winchell; Fluorspar near Deming, N, Mex., N. H. Dar- 

 ton and E. F. Burchard. 



Mineral resources of the United States. Calendar year 1910: Part 1, Metals. U. S. 

 Geological Survey. Pp. 796, map and sections. 1910. 



AGRICULTURE. — Soil surveys (Advance sheets — Field operations of the Bureau 

 of Soils, 1909-1910) as follows: 



Ellis County, Texas. Frank Bennett, R. T. Avon Burke, and Clarence 

 Lounsbury. Pp. 34. Map. 



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