RECENT PUBLICATIONS 535 



— Brunton, D. W., and Davis, J. A. Safety in Tunneling. [U.S. Bureau of 

 Mines, Miners' Circular 13. Washington, 1913.] 



— BucKMAN, S. S. (editor). Yorkshire Type Ammonites. Part VIII, com- 

 pleting Vol. I. [London: Wm. Wesley & Son, 28 Essex St., Strand, 

 1912.] 



— BuRRELL, G. A., AND Seibert, F. M. The Inflammable Gases in Mine 

 Air. [U.S. Bureau of Mines Technical Paper 39. Washington, 1913.] 



— ^Butters, R. M. Permian or ''Permo-Carboniferous" of the Eastern Foot- 

 hills of the Rocky Mountains in Colorado. [Colorado Geological Survey 

 Bulletin 5, Part II. Boulder, 1913.] 



— Campbell, M. R. Contributions to Economic Geology. (Short Papers 

 and Preliminary Reports.) 1910. Part II, Mineral Fuels. (U.S. Geo- 

 logical Survey Bulletin 471. Washington, 191 2.] 



— Canada Department of Mines, Geological Survey. Map 50A, Part of 

 Portland Canal Mining Area, British Columbia. 



— Capps, S. R. The Bonnifield Region, Alaska. [U.S. Geological Survey 

 Bulletin 501. Washington, 1912.] 



— Clark, H. H. Portable Electric Mine Lamps. [U.S. Bureau of Mines 

 Technical Paper 47. Washington, 19 13.] 



, AND Ilsley, L. C. The Action of Acid Mine Water on the Insula- 

 tion of Electrical Conductors; A Preliminary Report. [U.S. Bureau of 

 Mines Technical Paper 58. Washington, 1913.] 



Clement, J. K., and Walker, L. V. An Electrolytic Method of Preventing 

 Corrosion of Iron and Steel. [U.S. Bureau of Mines Technical Paper 15. 

 Washington, 19 13.] 



— Cockerell, T. D. a. Some Fossil Insects from Florissant, Colorado. No. 

 1955. [From the Proceedings of the U.S. National Museum, Vol. XLIV>, 

 pp. 341-46, with Plate 56. Washington, April 30, 1913.] 



- — Cotton, C. A. Notes on Wellington Physiography. From Transactions 

 of the New Zealand Institute, Vol. XLIV, 191 1. [Wellington, New 

 Zealand: Government Printing Office, 191 2.] 



— Covert, C. C, and Bolster, R. H. Surface Water Supply of the United 

 States. 1911. Part IV. St. Lawrence River Basin. [U.S. Geological 

 Survey Water Supply Paper 304. Washington, 191 2.] 



— Crawford, R. D. Geology and Ore Deposits of the Monarch and Tomichi 

 Districts, Colorado. [Colorado Geological Survey Bulletin 4. Boulder, 



1913-] 



— Dole, R. B. Exploration of Salines in Silver Peak Marsh, Nevada. [U.S. 

 Geological Survey Bulletin S30-R. Advance Chapter from Bulletin 530, 

 "Contributions to Economic Geology, 1911, Part I." Washington, 191 2.] 



— Enzl\n, Charles. Hydraulic Mine-Filling; Its Use in the Pennsylvania 

 Anthracite Fields; A Preliminary Report. [U.S. Bureau of Mines Bul- 

 letin 60. Washington, 1913.] 



