56 



CATALOGUE AND INDEX OF 



[bull. 127. 



Archean and Algonkian — Coutinned. 

 Great Lake Region — Gontinaed. 



1886. On the Upper Mississippi and 



trip to Vermilion Lake, 

 Willis. 

 Gneissic foliation and origin of 

 Archean rocks, Lawton. 



1887. Minnesota geological report, 



1886, Winchell, N. H. 

 Report on northeastern Minne- 

 sota, Winchell, A. 

 Report on observations in Min- 

 nesota, Winchell, N. H. 

 Peridotites, gabbros, diabases, 



and andeaites, Wadsworth. 

 Animikie at Duncan mine, 



Courtis. 

 Thunder Bay region, Ingall. 

 Anorthosite rocks, Adams. 

 At ta wa pish kat and Albany 



rivers. Bell, R. 

 Chapin iron mine, Larsson. 

 East of the Lake of the Woods, 



Lawson. 

 Elements of primary geology. 



Hunt, T. S. 

 Gastaldi on Italian geology. 



Hunt, T. S. 

 Michipicoten Bay, Herrick, 



Tight and Jones. 

 Map of the United States, 



Hitchcock, C. H. 

 Is there a Huronian group? 



Irving, R. D. 

 Ores of Menominee range, Ful- 

 ton. 

 Recent developments in 



Archean geology, Lawson. 

 Penokee-Gogebic iron ores. 



Eng. and Mining Jour. 

 Thunder Bay silver mines, 



Bell, R. 

 Rocks from Penokee iron range, 



analyses, Riggs. 

 Central counties of Minnesota, 



Uphara. 

 Classification of Cambrian and 



pre-Cambrian, Irving, R. D. 

 Norites and gabbros, Herrick, 



Clarke and Deming. 

 Huronian of Canada, Selwyn. 

 Huronian at Sudbury, Atwood, 



Bonney. 

 Equivalence of Huronian with 



Pebidian, Hicks. 



Archean and Algonkian — Continued. 

 Great Lake Region— Continued. 



1887. Diabase dikes of Rainy Lake, 



Lawson. 



Animikie slates and quartzites, 

 Winchell, N. H. 



Correlation of Animikie and 

 Huronian, M'Keller. 



Michigan gold fields, Parker. 



Granite and quartzite contact 

 at Iron wood, Winchell, N. H. 



Great primordial quartzite, 

 Winchell, N. H. 



Irving and Chamberlin on Lake 

 Superior sandstones. Am. 

 Geol. 



Metamorphism of eruptives on 

 south shore of Lake Supe- 

 rior, Williams, G. H. 



Report of Lake Superior divi- 

 sion. United States Geological 

 Survey, Irving, R. D. 



Sudbury copper deposits, CoL 

 lins. 



1888. Theories of ore deposits, Wads- 



worth. 



Supposed fossil ftom copper 

 Tocks of Lake Superior, 

 Wadsworth. 



Report on Rainy Lake region, 

 Lawson. 



Rocks of Pigeon Point, Bayley. 



Relations of Keweenawan, 

 Torch Lake, Michigan, Wads- 

 worth. 



Mines of Lake Superior, Ingall. 



Microscopic examination of 

 rocks from Thunder Bay, Bay- 

 ley. 



1889. Crystalline rocks of Minnesota, 



Winchell, N. H. 

 History of copper mining in 



Minnesota, Hall, C. W. 

 Diabase dikes with jaspilyte, 



Winchell, H. V. 

 Foliation and sedimentation, 



Lawson, Winchell, A. 

 Report on iron regions, Win- 

 chell, H. V. 

 Phosphorus in Ludington 



mine, Browne, D. H. 

 Natural-gas wells in Minuesota, 



Winchell, N. H. 

 Northeastern Minnesota, Grant, 



U.S. 



