52 



CATALOGUE AND INDEX OF 



[BULL. I3T. 



Archean and Algonkian — Continued. 

 Great Lake EKGioisr — Continued, 



1873. Relations in Sauk County, Wis., 



Eaton, J. H. 



Copper district of Michigan, 

 Pumpelly. 



Mineral region of Lake Supe- 

 rior, Bell, K. 



Lamination and structure of 

 ores and jasper, Michigan, 

 Brooks, T. B. 



Eocka between Chocolate River 

 and Granite Point, Michigan, 

 Houghton. 



Catalogue of Huronian rocks 

 and ores, Michigan, Brooks 

 and Julien. 



Eagle Eiver distriot, Michigan, 

 Marvine. 



Topography in Lake Superior 

 copper region, Blandy. 



Lithology of Huronian and 

 Laurentian of Tipper Penin- 

 sula, Julien. 



From Lake Superior to Fort 

 Garry, Selwyn. 



Lake Huron region, Murray. 



Eagle River district, Michigan, 

 Marvine. 



Correlation of rocks of Hough- 

 ton and Keweenaw counties, 

 Mich., Marvine. 



Microexamination of Huronian 

 rocks and ores, Wright, C. E. 



General sketch of geology of 

 Minnesota, Winchell, N. H. 



Geologic map of United States, 

 Hitchcock, C. H. ; Hitchcock 

 and Blake. 



Thunder Bay and Shabendowan 

 districts. Lake Superior, 

 Nicholson. 



Iron-bearing roots of Michi- 

 gan, Brookp, T. B. 



1874. Age of copper rocks of Lake 



Superior and continuation of 

 synclinal, Irving, E. D. 



North shore of Lake Huron, 

 Hunt, T. S. 



Mining on north shore of Lake 

 Superior, M'lCellar, 



Eolations of rocks of Baraboo, 

 Wis., Eaton, J. 



Survey of mineral regions, Wis- 

 consin, Murrish. 



Arohean and Algonkian— Continued. 

 Great Lake Eegion— Continued. 



1874. Belle Plaine salt well, Minne- 



sota, Winchell, N. H. 

 Junction of primordial and 



Huronian, Irving, E. D. 

 Points in southern Wisconsin, 



Irving, E. D. 

 Geology of Minnesota Valley, 



Winchell, N. H. 

 Notes from early explorers in 



Minnesota, Winchell, N. H. 



1875. Kupferfuhrenden Schichten 



ouLake Superior, Akermann. 



Mining district on north shore 

 of Lake Superior, Nichol- 

 son. 



Minerals de fer du lac Sup6- 

 rieur, Sauvage. 



Geologic chart of the United 

 States, Bradley, F. H. 



The ores of iron, their distribu- 

 tion, Newton. 



Eelations of primordial and 

 crystallines, Hunt, T. S. 



Huronian and mineral rocks of 

 Lake Superior, Bell. 



Native copper mines of Lake 

 Superior, Douglas. 



1876. Physical geology of Lake Supe- 



rior, Whittlesey. 



Country west of Lake Manitoba 

 and about Lake Winnipeg, 

 etc.. Bell. 



The State of Michigan, Mc- 

 Craoken. 



Basin of the Wisconsin, Warren, 

 G. K. 



Youngest Huronian rooks south 

 of Lake Superior, Irving. 



William Logan, Harrington, 

 B. G. 



Notes on northern Wisconsin, 

 Sweet. 



Ontonagon distriot and slate 

 quarries of Michigan Bay, 

 Mich., Rominger. 



Youngest Huronian south of 

 Lake Superior and age of 

 copper series. Brooks. 



Huronian of Canada, Selwyn. 



Catalogue pf Wisconsin ex- 

 hibit. Sweet. 



Physical geology of Lake Supe- 

 rior, Whittlesey, 



