DAETON.] 



NORTH AMERICAN GEOLOGY. 



639 



Michigan— Continued. 



1871. Post-Tertiary plienomenain Mich- 



igan, Winohell, A. 



The Marshall group, Winohell, A. 



Derivation of copper nnd its asso- 

 ciates on Lake Superior, Pum- 

 pelly. 



1872. Age of copper rocks of Lake S)i- 



perior. Brooks and Pumpelly. 



1873. Lithology of Huronian and Lau- 



rentian of upper peninsula, Ju- 

 lien. 



Topography in Lake Superior 

 copper region, Blandy. 



Rocks hetwcQu Chocolate River 

 and Granite Point, Houghton. 



Iron-bearing rooks, Michigan, 

 Brooks. 



Catalogue of Huronian rocks and 

 ore8,Brooks and Julien. 



Paleozoic rooks, upper Michigan, 

 Rominger. 



Correlation of rooks of Hough- 

 ton and Keweenaw counties, 

 Marvine. 



Eagle River district, Marvine. 



Micro examination of Huronian 

 rooks and ores, Wright, C. E. 



Copper district of Michigan, Pum- 

 pelly. 



Native copper mines of Lake 

 Superior, Douglas, J. 



System in physical features, Win- 

 ohell, A. 



Map of coal iields of the United 

 States, Hitchcock, C. H. 



1874. Niagara and lower Helderberg 



in United States and Canada, 

 Hall, J. 

 Age of copper rocks of Lake 

 Superior, and continuation of 

 synclinal, Irving, R. D. 



1875. The ores of iron; their distribu- 



tion, Newton. 

 Kupferfiihrende Schichten am 



Lake Superior, Akermann. 

 Minerais de fer du Lac Superior, 



Sauvage. 

 Geologic chart of the United 



States, Bradley, F. H. 

 Relations of Primordial and crys- 



talUnes, Hunt, T. S. 

 Geology of Cheboygan and Old 



Mackinac, Winohell, N. H. 



1876. Supposed agency of ice floes in 



Champlain period, Winohell, A. 



Michigan — Continued. 



1876. Physical geology of Lake Supe- 



rior, Whittlesey. 



Youngest Huronian south of Lake 

 Superior, and age of copper 

 series. Brooks. 



Huronian locks south of Lake 

 Superior, Brooks. 



Geology of Lake Superior iron 

 district, Wright, C. E. 



Ontonagon district andslate quar- 

 ries of Huron Bay, Rominger. 



Geology of lower peninsula, 

 Rominger. 



The State of Michigan, Mo- 

 Cracken. 



Parallelism of Devonian in Mich- 

 igan and Ohio, Winohell, N. H. 



Rectification of geologic map, 

 Winchell, A. 



Cornwall iron mine and related 

 deposits. Hunt, T. S. 



1877. Kupferbergbau am Oberen Sees, 



Mosler. 

 Coal regions of America, Macfar- 

 lane, J. 



On the glacial epochs, Price, E. K. 

 Allouez mine. Lake Superior, 



Rolker. 

 Cupriferous conglomerates of 



Lake Superior, Egleston. 



1878. Dikes and Azoic of southeast 



Pennsylvania, Hunt, T. S. 



Metasomatio development of cop- 

 per rocks of Lake Superior, 

 Pumpelly. 



Nipigon or copper rocks of Lake 

 Superior, Spencer, J. W. 



Pre-glacial geography of Great 

 Lakes region, Claypole. 



Term Hudson River in nomencla- 

 ture. Hall, J. 



The Ice age, Gratacap. 



Report on coal fields of British 

 Columbia, Richardson, J. 



1879. Paleontology of New York, vol. 5, 



Hall, J. 



Stratigraphy of Huronian in 

 northern Wisconsin, Irving, 

 R.D. 



Report of commissioner of min- 

 eral statistics of Michigan, 

 Wright, C. E. 



Macfarlane's Geological Railroad 

 Guide, Michigan, Winchell, A. 



