INDEX. 



<oo 



Cedarburg, elevations, 108. 

 spring, 108, 149. 

 building stone, 383. 

 Niagara limestone at, 362, 378, 379. 

 Celestite, 29. 

 Cement Rock, 295-405 . 

 Center, elevations, 108. 



Trenton limestone in, 303. 

 Ceuterville, elevations, 109. 



Drift in, 228. 



Centerville District, 722. 

 Centralia, 475, 530. 

 Central Wisconsin, report on, 407-639. 

 District, 410. 

 Area of, 409. 



Surface features, 413, 424. 

 River systems, 413. 

 Watersheds of, 424. 

 Former drainage of, 426. 

 Relations of topography to geology, 



447. 



Geological formations of, 448. 

 Drift and driftless areas, 448. 

 Vegetation and soils, 449. 

 Topographical subdivisions, 453. 

 General geological structure of, 457. 

 Archaean rocks of, 461-524. 

 Lower Silurian rocks of, 525-607. 

 Potsdam sandstone of, 525-547. 

 Lower Magnesian limestone of, 547- 



555. 



St. Peters sandstone of, 555-558. 

 Trenton limestone of, 558-562. 

 Galena limestone of, 562. 

 Local details, Silurian formations, 



563, 607. 



Quaternary deposits, 608-632. 

 i\iicroscopic lithology, 637-639. 

 Cerussite. 29, 694. 

 < 'halcopyrite, 28, 693. 

 t'halcosi'te, 28. 

 Chalybeate Springs, 148. 

 Chaiiifc^rlin, J. H., v., 52, 93, 106. 

 Chamberlin, T. C., 6, 44, 46, 64, 65, 66, 

 71, 85, 427, 502, 504, 506, 521, 542, 543, 

 553, 557, 559, 673. 

 Party of, 1873, 8. 

 Party of, 1874, 51. 

 Champlain, 219, 224. 

 Chandler, Dr. C. F., 146, 165. 

 Charlestown, elevations, 109. 

 Chert, 268. 

 Chilton, 109, 223. 

 Chimneys, 690. 

 Christiana, elevations, 170, 436. 



Trenton limestone in, 558. 

 Cincinnati Group, in Eastern Wisconsin, 

 314-326. 



in Lead region, 685. 



Fossils in, 315, 320. 



Clark County, general, 563, 



Special references, 461, 529, 541. 

 Clay Banks, elevations, 109. 

 Clear Lake, 140. 

 Clifton, 137. 



Brick made at, 238. 

 Cincinnati formation at, 818. 



Clifton, Niagara limestone at, 339. 

 Clinton, elevations, 109. 



Iron ore deposit, 327-335. 

 Clyinan, elevations, 109. 

 Coal, 316, 317. 

 Cobb, J.M., 171. 

 Cold Spring, elevations, 109. 

 Columbia County, general, 579. 



Special references, 529, 532, 534, 547, 



558. 

 Columbus, elevations, 442. 



Lower Magnesian limestone in, 547. 

 St. Peters sandstone in, 556. 

 Como Lake, 139. 

 Comstock, Gen. C. B., 61, 104. 

 Conant's Kapids, 478, 564. 

 Concord, elevations, 109. 

 Cranberries in, 186. 

 Conglomerate, 254. 

 Conover, A. D., v, 9, 651. 

 Cooperstown, elevations, 109. 



Niagara limestone, 350, 354, 383. 

 Copper, 27, 210, 619. 

 Carbonate, 28. 

 in Lead Region, 741. 

 Copperas, 29. 

 Coral Beds, Upper, 335, 351, 357, 384. 



Lower, 335, 348, 351, 384. 

 Coral Reefs, 369-371. 

 Cottage Grove, 600. 

 Elevations, 437. 

 St.Peters sandstone in, 556. 

 Courtland, elevations, 444. 



Lower Magnesian limestone in, 547. 

 St. Peters sandstone in, 556. 

 Trenton limestone in, 558. 

 Cranberries, 182, 186, 187. 

 Crawford, J. W. T., 9. 

 Crevice, 689. 



Cross Plains, elevations, 436. 

 St. Peters sandstone in, 556. 

 Trenton limestone in, 559. 

 Cuprite, 28. 



Current, along shore of Lake Michigan, 

 130, 132. 

 iyanite, 29 



D. 



Dale, elevations, 109. 

 [)alles of the Wisconsin, 570. 

 [)ana, Prof. J. D., 79, 370. 

 Dane, elevations, 170, 440. 

 Lower Magnesian in, 547. 

 County, general, 597, 

 Special references, 529, 534, 558. 

 Daniells, Prof. W. W., analyses by, 6, 60, 



64, 72, 284, 285, 339, 345, 381, 680. 

 Dajiiels, Edward, 68, 69, 95, 647. 

 Darien, 206. 



elevations, 109. 

 )arlington, 681. 

 )arwin, Chas., 370. 

 Da vies, Prof. J. E., 26, 6< 

 Davis, W. N., 158. 

 Day, Dr. F. H., 369, 371. 



