XVI 



Plate. 



VIA. 



VII. 



VIII. 



IX. 



XL 



XII. 



XIII. 



XIII A. 



XIV. 



XV. 



XVI. 



XVII. 



XVIII. 



XIX. 



XX. 



XXII. 



XXIII. 



XXIV. 



XXV. 



XXV A. 



XXVI A. 



XXVI. 



XXVII. 



XXII. 

 XXIX. 



XXX. 



XXX A. 



XXXI. 



XXXII. 



GEOLOGICAL SURVEY OP WISCONSIN. 



Page. 

 Topographical Map of Milwaukee Comity, - - 0pp. 127 

 Diagram showing Glacial Movements in Eastern Wisconsin, 0pp. 204 

 Profile Section of Quaternary Eormations along Lake Michigan, 0pp. 219 

 Map showing Outline of Eastern Wisconsin during the Cham- 

 plain period, .... Opp. 223 

 Topographical map of Iron Ridge Mining Property, Opp. 328 

 Profile Sections showing the Subdifisions of the Niagara Group, Opp. 336 

 Profile Section through Artesian Wells at Western Union Junc- 

 tion, Milwaukee and Sheboygan, - Opp. 335 

 View of Milwaukee cement quarry, - - Opp. 395 

 View of Roche a Oris Bluff, Potsdam sandstone, - - Opp. 525 

 Arohasan. View of Devil's Lake and Kirk's Bluff, Opp. 407 

 Map of Central Wisconsin, shovraig the Hydrographic Basins and 



principal Topographical Subdivisions, - Opp. 46.1 



Map showing the formations along Black river, Jackson county, Opp. 493 



Map of Isolated Arohsean Areas, - . . - Opp. 501 

 Maps and Cross Sections illustrating the Structure of the Devil's 



Lake Gorge, . . - - Opp. 507 

 Cross Sections in Sauk county, - Opp. 590 

 East and West Sections in Columbia county, - - Opp. 579 

 North and South Sections in Columbia county, - - Opp. 581 

 North and South Sections in Dane county, ... Opp. 597 

 East and West Sections in Dane county, Opp. 600 

 Map of part of Wisconsin, showing glacial Drift and other Quat- 

 ernary formations, - Opp. 608 

 Geological map of the Pour Lake Country of Dane county, show- 

 ing the Directions and Effects of the Glacial Movements, Opp. 613 

 View of bluff of Galena limestone near CassviUe, on the Missis- 

 sippi, - Opp. 643 

 Outline map of the Lead region, exhibiting the Drainage and the 



Distribution of Prairie and Forest - - Opp. 652 

 Map of Hendy, Davey, Sobey &Co.'smine, - - Opp. 731 

 Section through the Mining Districts of Beetown, Potosi and Fair- 

 play, from the mouth of the Mississippi te the State Line, show- 

 ing the Denudation, - Opp. 667 

 Map of Linden mine, . , . Opp. 726 

 View of Bluffs on the Mississippi, - Opp, 689 

 Section through the Mining Districts of Hazel Green, Benton and 

 Mineral Point, from the State Line to the Wisconsin river, 

 showing Denudation, - .... Opp. 668 

 Outline map of the Lead region, showing the several Mining Dis- 

 tricts and the Furnaces, ... ... Opp. 742 



FIGURES. 



REPORT ON EASTERN WISCONSIN. 



1. Geological Relations of Green Bay Valley, 



2. Striated Cone of Limestone, Pewaukee, 



3. Trains of Bowlders from Portland and Waterloo Quartzite Outliers, 



4. Peculiar Glacial Phenomena at BurUngton, - - 



Pftge. 



101 



200 

 202 

 203 



