406 Scientific Intelligence. 



Geologic Folios. — No. 205. Detroit, Michigan (Wayne, 

 Detroit, Grosse Pointe, Eomulus, and Wyandotte Quadrangles) ; 

 by W. H. Sherzer. Pp. 22, 12 maps, 12 pis., 20 figs. 



No. 206. Leavenworth- Smithville, Missouri-Kansas ; by Henry 

 Hinds and F. C. Greene. Pp. 13, 4 maps, 10 pis., 10 figs. 



No. 207. Deming, New Mexico; by N. H. Darton. Pp. 15, 

 3 maps, 1 structure-section sheet, 9 pis., 11 figs. 



Professional Papers. — No. 94. Economic Geology of Gilpin 

 County and adjacent parts of Clear Creek and Boulder Counties, 

 Colorado; by E. S. Bastin and J. M. Hill. Pp. 379, 23 pis.. 

 79 figs. 



No. 97. Geology and Ore Deposits of the Mackay Region, 

 Idaho; by J. B. Umpleby. Pp. 129, 21 pis., 14 figs. 



No. 100-A. The Coal Fields of the United States: General 

 Introduction ; by M. R. Campbell. Pp. 36, 1 pi., 3 figs. 



No. 108. Shorter Contributions to General Geology, 1917. C, 

 D, E. F. 



Mineral Resources of the United States for 1916. Numerous 

 advance chapters. 



Bulletins. — No. 625. The Enrichment of Ore Deposits, by 

 W. H. Emmons. Pp. 530, 7 pis., 29 figs. 



No. 647. The Bull Mountain Coal Field, Musselshell and 

 Yellowstone Counties, Montana; by L. H. Woolsey, R. W. 

 Richards, and C. T. Lupton ; compiled and edited by E. R. 

 Lloyd. Pp. 218, 36 pis., 2 figs. 



No. 652. Tungsten Minerals and Deposits, by F. L. Hess. 

 Pp. 85, 25 pis., 4 figs. 



No. 653. Chemical Relations of the Oil-Field Waters in San 

 Joaquin Valley, California (Preliminary Report) ; by G. S. 

 Rogers. Pp. 119, 7 figs. 



No. 657. The Use of the Panoramic Camera in Topographic 

 Surveying, with notes on the application of Photogrammetry to 

 Aerial Surveys ; by J. W. Bagley. Pp. 88, 15 pis., 22 figs. 



No. 660. Contributions to Economic Geology, 1917, Part I. 

 A. B. 



No. 661. Contributions to Economic Geology, 1917, Part IT. 

 A, B, C, E. 



No. 666. Our Mineral Supplies. Several advance chapters. 



Water Supply Papers.— Nos. 362, 386, 391, 401, 403, 405. 

 Surface Water Supply of the United States ; Nathan C. Grover, 

 Chief Hydraulic Engineer. 1913. No. 362. Part XII. North 

 Pacific Drainage Basins. Pp. 775, 2 pis. 



1914. No. 386. Part VI. Missouri River Basin. Pp. 261, 3 

 pis. No. 391. Part XL Pacific Slope Basins in California. 

 Pp. 370, 2 pis.— No. 394. Part XII. North Pacific Drainage 

 Basins. Pp. 180, 2 pis. 



1915. No. 401. Part I. North Atlantic Slope Drainage Basins. 

 Pp. 186, 2 pis. No. 403. Part III. Ohio River Basin. Pp. 



