NORTH AMERICAN GEOLOGY. 



57 



Arcbeau and Algonkian — Continued. 

 Great Lake Region-— Continued. 



1889. Quartz-keratophyre, Pigeon 



Point, Bayley. 



Stillwater well, Minnesota, 

 Meads. 



Thoughts on eruptives, Win- 

 chell, N. H. 



Stratigraphy of Huronian,Win- 

 chell, N. H. 



Unconformities of the Animi- 

 kie, Winohell, A. 



Origin of Vermilion Lake iron 

 ores. Van Hise. 



Conglomerates in gnei8seB,Win- 

 chell, A. 



Hnronian system. Bell. 



Studies of Arohean of the 

 Northwest, Winchell, A. 



Two systems in the Huronian, 

 Selwyn. 



Granites of the Northwest, 

 Hall, C. W. 



List of papers on Arohean, 

 Winchell, N. H. 



Penokee-Gogehic iron ores. Van 

 Hise. 



Analyses of rocks from Pigeon 

 Point, Eakins, Hillebrand, 

 Riggs, Whitfield, J. E, 



Pigeon Point, Minnesota, Bay- 

 ley. 



Report of Lake Superior divi- 

 sion, United States Geological 

 Survey, Living, Van Hise. 



Analyses of rocks from Menom- 

 inee River, Riggs. 



1890. Petrography of certain dikes of 



Ra.iny Lake region, Lawson 

 and Shutt. 



Archean northwest of Lake 

 Superior, Lawson. 



Eruptives of Lake Huron 

 region, Fairbanks. 



Pre-Cambrian of the Black 

 Hills, Van Hise. 



Geology of the northwest of 

 Lake Superior, Harvey. 



Position of Ogishke conglom- 

 erate, Winchell, A. 



Results of Archean studies, 

 Winchell, A. ; Van Hise. 



Huronian-Laurentian contact 

 north of Lake Huron, Barlow. 



Huronian and Laurentian rocks 

 north of Lake Huron, Law- 

 son. 



Archean and Algonkian — Continued. 

 Great Lake Region — Continued. 



1890. Tracks in Animikie rocks, 



Selwyn, 

 Origin of gneiss, Bell. 

 Greenstone schists of Mar- 

 quette-Menominee regions, 



Williams, 6. H. ; Irving. 

 Copper mining in Michigan, 



Eug. and Mining Jour. 

 Kamanistiquia silver belt, 



Wood. 

 Observation on some Canadian 



rocks, Winchell, A. 

 Copper in Animikie at Thunder 



Bay, Lawson. 

 Taconic iron ores of Minnesota, 



Winchell, N. H. and H. V. 

 Analysis of novaoulite from 



Marquette, Hillebrand. 

 Analyses of rocks collected by 



R. D. Irving, Hillebrand. 

 Analyses of rooks from Peno- 



kee-Gogebic range, Chatard, 



Eakins. 

 Macfarlane's Railway Guide, 



Dawson, G. M. ; Winchell, A. 

 Analysis of diabase from Michi- 

 gan, Chatard. 

 Warren's Geography, Brewer. 

 Iron ores. Hunt, T. S, 

 Penokee iron-bearing series, 



Irving and Van Hise. 

 Report on Sudbury district. 



Bell. 

 Report of Lake Superior divi- 



sion,United States Geological 



Survey, Van Hise. 



1891. Lake Superior stratigraphy, 



Lawson. 



Dikes of Rainy Lake region, 

 Lawson. 



Dike in Minnesota River Val- 

 ley, Hall, C. W. 



Metallic iron in Huronian 

 quartzite, Ontario, Hoff- 

 mann. 



Summary reports of Geological 

 Survey, Selwyn. 



G«ology of Marquette iron re- 

 gion. Brooks. 



Nickel and copper, Sudbury dis- 

 trict, Bell, Barlow. 



Fauna of Lower Cambrian, 

 Walcott. 



Lake Superior stratigraphy. 

 Van Hise. 



