NORTH AMERICAN GEOLOGY. 



63 



Archean and Algonkian — Continued. 

 West op the Mississippi River (ex- 

 cepting Minnesota) — Continued. 



1878. Report on Big Horn Mountains, 



Carpenter. 

 Eozoic rocks of North America^ 



Hunt, T. S. 

 Report on portions of Nevada 



and California, Conkling. 

 Well at insane asylum, St. 



Louis, Mo., Broadhead. 

 Systematic geology of fortieth 



parallel survey, King, C. 

 Report on White River district, 



Colorado, Endlich. 

 Grand River district, Colorado, 



Peale. 

 Iron ores in Missouri, Gage. 

 Older rocks of the West, Hunt, 



T.S. 

 Dikes and Azoic of southeast 



Pennsylvania, Hunt, T. S. 

 Eozoic rocks of North America, 



Hunt, T. S. 

 Age of porphyries of Missouri, 



Broadhead. 

 Older rocks of the West, Hunt, 



T. S. 

 Preliminary report of survey of 



Territories, 1878, Hayden. 



1879. Macfarlane's Geological Rail- 



road Guide to California, 

 Cooper, J. C. 



Macfarliiue's Geological Rail- 

 road Guide to Colorado, 

 Hayden, Davis.- 



Macfarlane's Geological Rail- 

 road Guide to Utah, etc. , Da- 

 vis, W. M. ; Hague. 



Report of operations in Colo- 

 rado and New Mexico, Ste- 

 venson. 



Humboldt Pocahontas vein, 

 Rosita, Colo., Clark, R. N. 



Geology of Green River dis- 

 trict, Peale. 



Sweetwater district, Endlich. 



Review of Haydeu's Atlas of 

 Colorado and sketch of the 

 geology of the Northwest, 

 Morgan, A. 



Progress of survey of Wyoming 

 and Idaho, Hayden. 



Operations on the Mariposa 

 estate, Rolker, 



Archean and Algonkian — Continued. 

 West ov the Mississippi River (ex- 

 cepting Minnesota) — Continued. 



1879. Eureka lode, Nevada, Keyes, 



W. S. 



Geological survey of the for- 

 tieth parallel, Newberry. 



Wanderings in the Western 

 land, Vivian. 



1880. Mineral resources of the Black 



Hills, Jenney. 



Drainage of Black Hills, Gil-' 

 bert. 



High plateaus of Utah, Dutton, 

 Powell. 



Twin Lakes and Teooalli Moun- 

 tain, Colo., Hayden. 



Petrography of Black Hills of 

 Dakota, Caswell, ,J. H. 



Genesis of iron ores, New- 

 berry. 



Auriferous gravels of the Sierra 

 Nevada, Whitney, J. D. 



San Francisco, Eureka, and 

 Bodie districts, Becker, G. F. 



Archean of the Wasatch 

 Mountains, Geikie, A. 



Report of Rocky Mountain 

 division, Emmons, S. F. 



1881. Examinations in Colorado and 



New Mexico, Stevenson. 

 Origin of petrosilieeous rocks, 



Crosby. 

 Canyons, their character and 



origin, Bross. 

 Atlas of Colorado, Hayden, 



F.V. 

 Note on Silver Cliif region, 



Colorado, Wallace, S. J. 



1882. Summary of geology of Com- 



stock lode, Becker. 

 Report of work in Eureka dis- 

 trict, Hague, A. 

 Geology of Comstock lode and 



Washoe district, Becker. 

 Rapport de la commission du 



Mexique, Prudhomme. 

 Oscura mines. New Mexico, 



Peters, E. D. 

 Southern New Mexico, Silli- 



man. 

 Veins of Tombstone, Ariz., 



Blake, W. P.; Church. 

 Kreidebildnngen von Texas, 



Roemer. 



