CONTENT S. 



Vll 



DR. J. G. NORWOOD'S REPORT. 



Description of the Geology of Middle and Western Minnesota ; including the country 

 adjacent to the Northwest and part of the Southwest Shore of Lake Superior; illustrated by 

 numerous General and Local Sections, Wood-cuts, and a Map, .... 213 



CHAPTER I. 



Boundaries and Topographical Notices, ....... 213 



CHAPTER II. 



Descriptive Catalogue op Rocks, ........ 222 



CHAPTER III. 



Explorations in 18-17 and 1848, ........ 267 



CHAPTER IV. 



Geology of the Northwest and Western Portion of the Valley of Lake Superior, 333 



COL. WHITTLESEY'S REPORT. 



Description of Part of Wisconsin, South of Lake Superior; together with Observations 



incidental thereto, ......... 405 



CHAPTER I. 



Sect. I. General Geology of the District, 425 



Sect. II. Physical Aspect of the Bad River Country, ..... 431 



Sect. III. Description of the Country between Bad River and the Brule, . . . 435 

 Sect. IV. Copper Veins; their Geological Position and Promise of Productiveness in Wisconsin, 438 



Sect. V. Detailed Sections, . . . . . . . . .441 



Sect. VI. Magnetic Iron Beds of Penokie Range, ..... 444 



Sect. VII. Iron Ridge of Dodge County, ....... 443 



CHAPTER II. 



Description of the Country between the Wisconsin and Menomonie Rivers, . 452 



CHAPTER III. 



Red Clay and Drift of Wisconsin, and Artesian Wells therein, . . 462 



CHAPTER IV. 



Remarks on Barometrical and Thermometrical Observations, . . . 467 



