DIEION.] 



NORTH AMERICAN GEOLOGY. 



143 



Cambrian — Contimied. 

 Lakes Superior, Michigan, and Hu- 

 ron Region — Continued. 



1873. Map of United States, Hitch- 



cock, C. H. ; Hitchcock and 

 Blake. 



Copper district of Michigan, 

 Pumpelly. 



Chart of nomenclature for Min- 

 nesota, Winchell, N. H. 



1874. Glauconite and fossil resins, 



Hunt, T. S. 



Notes from early explorers in 

 Minnesota, Winchell, N. H. 



North shore of Lake Superior, 

 Hunt, T. S. 



Age of copper rocks of Lake 

 Superior, Irving, R. D. 



Geology of Minnesota Valley, 

 Winchell, N. H. 



Belle Plaine salt well, Minne- 

 sota, Winchell, N.H. 



Upheaval and fluctuations of 

 quartzite of Sauk and Colum- 

 bia counties. Wis., Chamber- 

 lin. 



Junction of primordial and 

 Huronian, Irving, R. D. 



Relations of rocks of Baraboo, 

 Wis., Eaton, J. 



Points in southern Wisconsin, 

 Irving. 



1875. Deep well at Minneapolis, 



Winchell, N. H. 

 Geologic chart of the United 

 States, Bradley, F. H. 



1876. Physical geology of Lake Su- 



perior, Whittlesey. 

 Notes on northern Wisconsin, 



Sweet. 

 Huronian rocks south of Lake 



Superior, Brooks. 

 Kaolin in Wisconsin, Irving, 



R. D. 

 Stratification of rocks of south 



central Wisconsin, Irving, 



R. D. 

 Ontonagon district and slate 



quarries of Huron Bay, Michi- 

 gan, Rominger. 

 Catalogue of Wisconsin exhibit, 



Sweet. 

 Geology of Lower Peninsula, 



Michigan, Rominger. 



1877. Geology of Houston County, 



Minn., Winchell, N. H. 



Cambrian — Continued. 

 Lakes Superior, Michigan, and Hu- 

 ron Region — Continued. 



1877. Report on central and western 



Wisconsin, Irving. 



Geognostische Beobachtungen 

 in Minnesota, Kloos. 



Report of Wisconsin survey for 

 187.'>, Wright. 



Report of Wisconsin survey, 

 1873-74, Lapham, I. H. 



Geology of lead district, Wis- 

 consin, Strong. 



Geology of eastern Wisconsin, 

 Chamberlin, T. C. 



Age of crystallines of Wiscon- 

 sin, Irving, R. D. 



1878. Dikes and Azoic of southeast 



Pennsylvania, Hunt, T. S. 

 Geology of Rock and Pipestone 



counties, Minn., Winchell, 



N. H. 

 North of Lake Huron and east 



of Lake Superior, Bell. 

 Work in Penokee iron range, 



Irving. 

 Report on Bayfield and Douglas 



counties. Wis., Sweet. 

 Work in St. Croix, Dunn, and 



adjacent counties. Wis., 

 Wooster. 

 Nijiigou or copper rocks of Lake 

 Superior, Spencer, J. W. 



1879. Macfarlane's. Geological Rail- 



road Guide, Illinois, Worthen. 



Macfarlane's Geological Rail- 

 road Guide, Michigan, Win- 

 chell, A. 



Macfarlane's Geological Rail- 

 road Guide, Minnesota, Win- 

 chell, N. H. 



Macfarlane's Geological Rail- 

 road Guide, Wisconsin,Cham- 

 berlin, Irving and Strong. 



Lake Superior copper rocks in 

 Pennsylvania, Blandy, Hunt, 

 T. S. 



Report of mineral statistics of 

 Michigan, Wright, C. E. 



Michigan: condensed popnlar 

 sketch, Winchell, A. 



1880. Geology of upper St. Croix 



district, Strong. 

 Report on central and west- 

 ern Minnesota, Winchell, 

 N.H. 



