KOKTH AMERICAN GEOLOGY. 



149 



Cambrian— Contmued. 

 EocKY Mountains to the PACinc 

 Coast— Continued. 



1884. Beport on observations in Ne- 



vada and the Grand Canyon, 

 Walcott. 



Report from Carroll to the Yel- 

 lowstone Park, Bana, E. S. 

 and Grinnell. 



Recent observations in North- 

 west territory, Dawson, 

 G.W. 

 Ruby Hill mines, Eureka, Nev., 

 Science. 



Buffalo peaks, Colo., Emmons, 

 S.F. 



Cambrian of United States and 

 Canada, Walcott. 



Silver-lead deposits of Eureka, 

 Nev., Curtis, J. S. 



Paleontology of Eureka dis- 

 trict, Walcott. 



1885. Age of Rocky Mountains, Win- 



wood. 

 Enlargement of fragments in 



certain rocks, Irving and "Van 



Hise. 

 Progress of geology, 1883, 



Hunt, T. S. 

 Geologic sketch of Pacific divi- 

 sion, Becker. 

 New genus of Cambrian trilo- 



bite, Walcott. 

 Section of Eureka district, 



Hague, A. 



1886. Leadville ore deposits, Colo- 



rado, Polker. 



Fossils from, central Montana, 

 Whitfield. 



Aspen district,Colorado, Lakes. 



Geology and mining of Lead- 

 ville, Colo, Emmons, S. F. 



1887. Old telegraph mine, Utah, La- 



vagnino. 

 Battle Mountain, Colo., Oloott. 

 Eagle County, Colo., Tildeu. 



1888. Geology of Colorado ore de- 



posits. Lakes. 



Iron resources of Colorado, 

 Chauvenet. 



Leadville region, Ihlseng, 

 Blow. 



Structural relations of ore de- 

 posits, Emmons, S. F. 



CcBur d'Algne mines, Idaho, 

 Clayton. 



Cambrian — Continued 

 Rocky Mountains to the Pacific 

 Coast — Continued. 



1888. Drumlummon veins, Montana, 



Clayton. 



Marbles of Western States, New- 

 berry. 



Report, Montana division. Hay- 

 den. 



Report, paleozoic division of 

 paleontology, Walcott. 



1889. Aspen, Colo., Brunton, Lakes, 



Emmons, S. F. ; Helnrich, 



Siver. 

 Rooky Mountains, HiUs. 

 Graphitic anthracite, Idaho, 



Jenney. 

 Stratigraphic position of the 



Olenellus, Walcott. 

 Northwestern Colorado region. 



White, C. A. 

 Report, Montana division. 



United States Geological 



Survey, Peale. 



1890. Aspen district, Newberry. 

 Extinct volcanoes in Colorado, 



Lakes. 



Displacements in Grand Can- 

 yon, Walcott. 



Movements in Rocky Moun- 

 tains, Emmons, S. F. 



Warren's Geography, Brewer. 



Macfarlane's Railway Guide, 

 Dawson, G. M; Emmons, 

 S. F. ; Hague, McGee, Pum- 

 melly, Putnam, Winchell, 

 N.H. 



Report, Rooky Mountain divi- 

 sion, United States Geological 

 Survey, Emmons, S. F. 



Report, Montana division. 

 United States Geological Sur- 

 vey, Peale. 



1891. Genesis of iron ores, Kimball. 

 Ore deposits of Pioche, Nev., 



Mayuard. 

 Great Falls coal field, Montana, 

 Newberry. 

 Canada (excepting in vicinity of lakes 

 Superior and Huron). 

 1822. Geology, etc., of Malbay, lower 



Canada, Bigsby. 

 1824. Newfoundland In 1824, Bonny- 

 castle. 

 List of minerals and remains in 

 Canada, Bigsby. 



