802 



INDEX. 



Page. 



Chicago Outlet, maps of 420-421 



meaning of name 420 



-width of 424 



Chicago River, beacn on west side of 430 



drainage basin of 538 



Chillicotlie, terrace at 275-276 



Christian County, 111., altitude of 10 



analysis of soil from 161 



general features of 725-726 



wells in 725-727 



Cissna Park, 111., well at 661 



Cisne, 111., wells near 775 



Clark County, 111., altitudo of 10 



general features of 733-734 



wells iu 733-734 



Clay County. 111., altitude of 11 



general features of 757-758 



wells in 757-753 



Cla; ton, 111., drift sheets in the vicinity of 142 



wells at 660-661, 705-706, 716 



Clinton, 111., section of gas well at 205 



thickness of drift at 205 



Clinton, Iowa, glacial deposits at 147-148 



preglacial course of the Mississippi River below. 466-467 



Clinton County, 111., altitude of 11 



general features of 760 



table of wells in ...-■ 761 



wells in 760-761 



Clinton County, Iowa, belt of drift in 144-145 



Clinton Township 111., section of knoll in 287 



Clyde Township, sandy belt in 149 



Coal City, 111., wells at 647 



Coal Creek, gravel along 239 



Coal Measures district, altitude and drainage of 17 



Coatsburg, 111., composition of ridge leading from... 61-62 



section in a boring for coal east of 62 



wells at 715-716 



Coles County, 111., altitude of 10 



general features of 734-735 



wells in 217,734-736 



Coleman, A. P., cited on Toronto formation 189 



Colfax, 111., wells at 694 



Collett, John, reference to , 88 



Coloma, Mich., well at 369 



Cols 100, 101, 102 



Columbia, 111., exposures at 65 



wellsat 765-766 



Columbia Station. Mich., section near 365 



Columbus City. Iowa, well at 50 



Columbus Junction, Iowa, abandoned channel near. 90,91,93 



wells at 34,50 



Conaro, James, well section of 55 



Concord, 111., wells at 777 



Cooley, L. E., cited on the Chicago outlet 419,425 



cited on variation in the bed of the upper Illi- 

 nois River 502 



cited on the watershed of Dos Plaines River 503 



the drainage area of the Illinois River estimated 



by 497 



filling, estimated by 424 



information furnished by 384,422 



study of the movement of water in Lake Michi- 

 gan by 455-456 



Cool Spring post-office, ridge near 72 



Cook County, 111., altitude of 9 



situation and general features of 581-583 



Page. 



Cook County, 111., wells in 581-591 



Coon Creek, well near 574 



Cooper, 111., wells at 692 



Copperas Creek, watershed of 516 



Coppock, Iowa, old channel of the Mississippi River 



at 92, 93 



Cordilleran ice field, extent of 22 



Cornell, 111., wells at 666 



Cortland, topography near 248 



Cottonwood, III., wells near 784 



Coulterville, 111., wells at 769 



Covel Creek, watershed of 510-5U 



Covel Ridge, description of 288-289 



Covert, wells near 400-401 



Covert Ridge, altitude of 391 



beach near 433 



bowlders on 393-394 



course of : 388-389 



sand ridge on 433 



section of 394 



topography of 389-390 



wave action at 436 



wells and borings on 400,401,402,403 



Cowden, III., wells at 739 



Crab Orchard Creek, watershed of 527 



Crawfish Flats, 111., wells at 776 



Crawford County, 111., altitude of 11 



general features of 755 



wells in 755-756 



Crescent, 111., wells near 659 



Crescent City, drift sheets at 142 



Creston, 111., wells at 608 



Crooked Creek, watershed of 520 



Cropsey Ridge, topography near 253-259 



Cross ville, 111. , wells near 777 



Crystal Lake, 111., wells at 577-578 



Cullom, III., wells at 667 



Cumberland County, 111., altitude of 10 



exposures of Sangamon soil in 127 



general features of 736-737 



soil analysis 162 



wells in 736-737 



Cumming, Thomas, information furnished by 647 



Curran,IU., wells at 725 



Curtis, G. C, and J. B. "Woodworth cited on Nan- 

 tucket as a morainal island 272 



Curtis, L. K., acknowledgments to 641 



r>. 



Dakota, Stephenson County, transported rock ledges 



near 83 



Dall, W. H., examination of fossils by 115 



fossils identified by 169-170 



Dallas, 111., wells at 682 



Dalton, 111., wells at 730 



Dalton City, wells at 217 



Danforth, 111., wells at 657-658 



Danvers, 111., wells at 695 



Danville, 111., well at 699 



Danville Junction, 111., well at 699 



Darling, G. W., statement by 671 



Davenport, Iowa, fossils found at 168, 173 



section in railway cutting near 128 



section of drift at 45 



Daviess County, III., drift border in 69 



Davis, \V\ M., cited on the Chicago Outlet 420 



