TABLE OF CONTENTS. xv 



ATLAS PLATES 



ACCOMPANYING THIS VOLUME. 



NOTE. As maps will accompany the other volumes of this report, it has been thought best to arrange 

 and number the whole series as one set, for convenience of reference and binding, and hence the accom- 

 panying atlas begins with Plate III. 



PLATE. 



III. Map of Soils and of Vegetation of Eastern Wisconsin. 



IV. Map of Topography and of the Quaternary Formations of Eastern Wisconsin. 

 V. Map of Geology and Topography of the Lead Region. 



VI. Map of Geology and Topography of the Lead Region. 



VII. Map of Geology and Topography of the Lead Region. 



VIII. Map of Geology and Topography of the Lead Region. 

 IX. Map of Geology and Topography of the Lead Region. 



X. Area A. Geological map of Kenosha, Racine, Milwaukee, Waukesha, Wai- 

 worth, Jefferson, and parts of Rock, Dodge, Washington and Ozaukee counties. 

 XI. Area B. Geological map of Fond du Lac, Sheboygan, Manitowoc, Calumet, 

 Winnebago, and parts of Dodge, Washington, Ozaukee, Kewaunee, Brown, 

 Outagamie and Waupaca counties. 



XII. Area C. Geological map of portions of Brown, Door, Kewaune*, Outagamio, 

 Shawano and Oconto counties. 



XIII. Area D. Geological map of Green, and parts of Iowa, La Fayette, Dane, Sauk 



and Rock counties. 



XIV. Area E. Geological map of Juneau, Adams, Waushara, Marquette, Sauk, Col- 



umbia, Green Lake and part of Dodge counties. 

 XV. Area F. Geological map of Wood, and parts of Clark, Jackson, Marathon and 



Portage counties. 



XVI. Area G. Geological map of Grant, and parts of La Fayette, Iowa, Richland and 

 Crawford counties. 



LIST OF ILLUSTRATIONS. 



LITHOGRAPHIC PLATES. 



NOTE. The chromo-lithographs were carefully reproduced from photographs. 



PLATE I. View of Stand Rock, Dalles of the Wisconsin Potsdam Sand- 

 stone, .--_. Frontispiece. 



Page. 



I A. False Bedding Potsdam Sandstone Dalles of the Wisconsin, Opp. 45 

 II. Map showing the Areas examined by the Several Parties, 1873- 



1876, - Opp. 94 

 II A. Lucas Point, Green Lake, showing Junction of Potsdam sandstone 



and Lower Magnesian limestone, ----- Qpp. 91 



III. Iron Ridge Mine, Opp. 327 



IV. Topographical Map of Eastern Wisconsin, - ... Opp. 97 

 V. Profiles elucidating Artesian Fountains in Eastern Wisconsin, Opp. 151 



VI. Profiles elucidating Artesian Fountains in Eastern Wisconsin, Opp. 160 



