384 The American Geologist. June, 1904. 
ASHLEY, GEO. H. 
The Cumberland Gap coal field. (Bull. 225, U. S. Geol. Sur., pp. 
259-276, 1904.) 
BAGG, R. M. 
Genesis of ore deposits in Boulder county, Colorado. (Bull. G. 
S. A., vol. 14, p. 565. abstract, 1303.) 
BAIN, H. F. 
Fluorspar deposits of southern Illinois. (Bull. 225, U. S. Geol. Sur., 
pp. 505-512, 1904.) 
BAIN, H. F. 
Lead and zinc deposits of Illinois. (Bull. 225, U. S. Geol. Sur., 
pp. 202-208, 1904.) 
BAIN, H. F. 
Reported gold deposits of the Wichita iiiountains. (Bull. 225. U. 
S. Geol. Sur.. pp. 120-123, 1904.) 
BURROWS, J. S. 
Barnesboro-Patton coal field of central Pennsylvania. (Bull. 225, 
U. S. Geol. Sur., pp. 295-311, 1904.) 
BAUER, L. A. 
Results of magnetic observations made by the Coast and Geo- 
detic survey between July 1, 1902, and June 30, 1903. (Appendix 
5, Report for 1903 of the Coast and Geodetic survey, Washington.) 
BELL, ROBERT. 
Work of the geological survey of Canada in 1902. (Bull. G. S. 
A., vol. ]4, p. 557, abstract, 1903.) 
BERKEY, C. P. 
A geological Reconnoissance of the Uintah reservation in South- 
eastern Utah. (Am. Geol., vol. 33, p. 334. May, 1904.) 
BOUTWELL, J. M. 
Iron ores in the Uinta mountains. (Bull. 225, U. S. Geol. Sur., 
pp. 221^229, 1904.) 
BOUTWELL, J. W. 
Progress report on the Park Citymining district. (Bull. 225,. 
U. S. Geol. Sur., pp. 141-151, 1904.) 
BOUTWELL, J. M. 
Rock gyp&um at Nephi. (Bull. 225, U. S. Geol. Sur., pp. 483- 
488, 1904.) 
BROOK, W. M. 
The Alsek mining district. (Eng. Min. Jour., vol. 77, May 12, 
1904. p. 706.) 
BROOKS, A. H. 
The Geography of Alaska. (Nat. Geog. Mag., vol. 15, p. 213, May, 
1904.) 
BROOKS, A. H. 
Placer mining in Alaska in 1903. (Bull. 225, U. S. Geol. Sur. pp. 
43-60, 1904.) 
