INDEX. 



A. 



Acknowledgments, 89, 93, 412, 651. 



Adams County, 529, 566. 



Age of Milwaukee Cement Rock, 397. 



Agriculture, 41. 



Aimapee, elevations, 107. 



spring, 148. 



nver, 204. 



drift, 228. 

 Albion, elevations, 435. 



Trenton limestone, 558. 

 Albite, 28. 

 Amphibole, 28. 

 Analysis of Barite, 693. 



brick, 236. 



carbonaceous shale, 673, 680. 



cement rock, 396. 



glass rock, 681. 



greensand, 536. 



iron ore, 331, 498. 



kaolin, 468, 469, 471, 476. 



limestone, 152, 282, 284, 292, 298, 309, 

 338, 345, 381, 390, 393, 399, 543, 560, 

 561. 



marl, 239. 



pig iron, 332. 



soils, 196. 



St. Peters sandstone, 680. 



waters, 31, 146, 152, 161, 660. 

 Andrews, Dr. E., 96. 

 Angelica, elevations, 107. 



Lower Magnesian limestone, 283. 



Trenton limestone, 303. 

 Anglesite, 29, 693. 

 Annual Report of 1873, 5. 



1874, 45. 



1875, 67. 



Ansley Range, 741. 

 Antisdel, 89. 

 Apatite, 29. 

 Appleton brick, 237. 



flux used at, 341. 

 Galena limestone at, 312. 

 springs at, 148. 



Archaean formations, general description, 

 248, 461. 



areas, isolated, 248, 501. 

 table of isolated areas, 503. 

 Wis. SUR. 48 



Arlington, elevations in, 442. 

 general description, 585. 

 Lower Magnesian limestone, 547. 

 St. Peters sandstone, 556. 

 Arrangement of report of Cent. Wis., 411. 

 Arsenical Nickel, 28. 

 Arsenides, 28. 

 Artesian Wells, 149. 



in Auroraville, 150-159. 

 Byron, 150, 155. 

 Calumet, 150, 158. 

 Fond du Lac, 150-154. 

 Green Bay, 150. 

 Janesville, 151, 166. 

 Madison, 50, 533. 

 Manitowoc, 150, 162. 

 Milwaukee, 151, 164, 336. 

 Oakfield, 150, 155. 

 Oshkosh, 150, 151, 155, 158. 

 Palmyra, 151, 161. 

 Poysippi, 150-159. 

 Racine, 151, 163. 

 Rushford, 150, 159. 

 Sheboygan, 151, 164. 

 Taycheedah, 150, 154. 

 Watertown, 150, 160. 

 Whitewater, 150, 162. 

 Western Union Junction, 151, 162, 



336. 

 possibilities of obtaining, at other 



points, 167. 

 Ashford, elevations, 107. 



Niagara limestone in, 350, 356. 

 Ashippun, Cincinnati shales in, 317. 



^Niagara limestone in, 340, 343. 

 Asphaltum, 29. 

 Auburn, elevations in, 107. 

 Aurora, Artesian weULs in, 150, 159. 



cranberries in, 186. 

 Avon, elevations in, 107, 169. 

 Aztalan, elevations, 107. 



Trenton limestone in, 301. 



B. 



Bacon, C. S., 93, 106. 

 Baileys Harbor, 204. 



Niagara limestone at, 352, 353. 



