144 



CATALOGUE AND INDEX OF 



[BULL. 127. 



Cambrian — Continued. 

 Lakes Superior, Michigan, and Hu- 

 ron Region — Continued. 



1880. Geologic action of hamus acids, 



Julien. 



Silver Islet, Macfarlane. 



Reaouroes of Wisconsin, Irv- 

 ing, R. D. 



Geology of vyestern Lake Supe- 

 rior district, Sweet, E. T. 



Cupriferous series of Duluth, 

 Winchell, N. H. 



Geology of eastern Lake Supe- 

 rior district, Irving, R. D. 



Structure of northern Wiscon- 

 sin, Irving, R. D. 



Deep vrell at Emmetsburg, 

 Iowa, Winchell, N. H. 



Age of copper rocks of Lake 

 Superior, Wadsworth. 



1881. Glacial drift and its terminal 



moraines, TJpham. 



Geology of upper Mississippi 

 Valley,'Winchell, IS". H. 



Map of Menominee iron dis- 

 trict, Wright, C. E. 



1882. Quartzites of Barron and Chip- 



pewa counties, Wis., Strong, 

 Sweet, Brotherton and 

 Chamberlin. 



Nomenclature g^ologique, 

 Winchell, N. H. 



List of rocks of Minnesota, 

 Winchell, N. H. 



Marquette iron region. School 

 of Mines. 



The Potsdam sandstone, Min- 

 nesota, Winchell, N. H. 



Sandstones in part of quartz 

 crystals, Young, A. A. 



Lower St. Croix district, 

 Wooster. 



Paleontology, survey of Wis- 

 consin, Whitfield. 



Crystallines of the Wisconsin 

 Valley, Irving, Van Hise and 

 Clark. 



Deep well at Minneapolis, 

 Winchell, N. H. 



Mississippi region north of 

 Wisconsin River, Strong. 



1883. Sandstones and the Kewee- 



nawan series, Wadsworth. 

 Nature of induration in sand- 

 stones and quartzites in 

 Wisconsin, Irving. 



Cambrian— Continued. 

 Lakes Superior, Michigan, and Hu- 

 ron Region— Continued. 



1883. Lake Superior rooks, Winchell, 



N. H. 



Rocks of north shore of Lake 

 Superior, Selwyn. 



Keweenaw Point geology, 

 Wadsworth. 



Minerals and lithology of Wis- 

 consin, Irving. 



History of Taconio question 

 and relation of Taoonian se- 

 ries. Hunt, T. S. 



Potsdam and St. Peters sand- 

 stone, Wadsworth. 



Building materials of Wiscon- 

 sin, Chamberlin, T. C. 



Well at Moline, 111., Pratt. 



Copper rocks of Lake Superior, 

 Irving, R. D. ; Selwyn, Cham- 

 berUn, T. C. 



General geology of Wisconsin, 

 Chamberlin, T. C. 



Artesian wells, Wisconsin, 

 Chamberlin, T. C. 



1884. Geology of Minnesota, Win- 



chell and Upham. 



Michigan building stones, Con- 

 over. 



Transition from copper series 

 to Potsdam, Wooster. 



Outcrops in central Minnesota, 

 Upham. 



Age of rocks of Mesabi and 

 Vermilion districts, Win- 

 chell, N. H. 



Cambrian of North America, 

 Hunt, T. S. 



Relations of Keweenawan to 

 Eastern sandstone, Wads- 

 worth. 



Cambrian of United States and 

 Canada, Walcott. 



Minnesota building stones, 

 Winchell, N. H. 



Copper and iron districts of 

 Lake Superior, Wadsworth. 



Crystalline rocks of the North- 

 west, Winchell, N. H. 



Wisconsin building stones, 

 Conover. 



Atmospheric action on sand- 

 stone, Wadsworth. 



1885. Divisibility of Archean in the 



Northwest, Irving. 



