800 



INDEX. 



Page. 



Bear Creek, <■ 'se of 480 



Beatty'a Mound, 111., .veils at 747 



Beecher, 111., wells near 754 



Belleville, 111., wells at 753 



Belvidere, 111., fossils at 139 



wells at 573-574 



Benient, 1 11., wells at 220, 704 



Bentou Harbor, Mich., till ridgo near 386-387 



Bevan, J. S., information furnished by 206 



Berksville, 111., wells near 760 



Berrien County, Mi, li„ altitude of 405 



thickness of drift in 355 



wells in :i73.374 



Bensunville, 111., well at 592 



Bethany, 111., deptb of drift at 217 



wells at 730 



Beverly, 111., section in well east of 60 



wells at 718 



Beyer, S. W., aid by 187 



Biggsville, 111., wells at 080 



Big Meadow Channel, discussion of 481-482 



Big Muddy River, watershed of 526-527 



Big Raccoon Creek, source and watershed of 535-536 



Big Sandy Creek, watershed of 522 



Blackintou. William, well section of 55 



Black Lake, dentli of 441 



Black River, drainage basin of 541 



Black soil (Yarmouth), depth to, in wells near Den- 

 mark, Iowa 54 



Blatcbiey. AV. S., information furnished by 410 



Bloomiugdale, Ind , gravel-tilled valley near 238-239 



Blooiningdale, Mich., well at 365 



Bloomingtou, 111., buried soil at 265 



drift sheet at 189 



section of coal shaft at 108 



structure of drift from Dekalb County to 267 



valley-like, depression southeast of 271 



wells at 694-695 



Bloouiiugton morainic system, distribution 241-243 



out wash of 270-280 



range in altitude of 245 



relief of 244 



structure of the drift of 266-269 



thickness of the drift of 262-266 



topography of 245-262 



Blue Grass, Iowa, exposures at 46 



"Blue Island." till ridge known as 382-384 



Blue Island, 111., wells at 590 



Blue Mound, 111., well at 729 



Blue Ridge, well at 234 



Bluff Creek, amount of cutting along preglacial 488 



preglacial course of 485 



Bolton, 111., gravelly belt at 80 



Bond County, 111., altitude of n 



general features of 750 



wells in 750-752 



Bonus Township, 111., wells in 574 



Bon Pas River, watershed of 531 



Boone County, 111., altitude of 9 



drift in 573 



gravel knolls in 136 



situation and area of ,, 573 



till ridge in 135 



wellsin 573-575 



Bowlders along Chicago Drainage Canal 426 



at Keokuk, Iowa - 95 



Page. 



Bowlders in Bloomiugdale Township, 111 357 



in Lee County, Iowa 41 



in Pike County, 111 02 



in southwestern Indiana 66 



near Blue Island, 111 383-384 



near Burton, 111 50 



near Fort Madison. Iowa 55-56 



near Gilbert Station, 111 302 



near Morris, 111 325-326 



near St. Louis, Mo 64 



near Torkville, 111 312 



Bowmanvillc, 111., wells near 58S 



Briar Hill Station, 111., wells near 594 



Braeevillo, 111., wells at 647 



Bradley, F.H., cited on depositsin Vermilion County. 233 



cited on name of Lake Kankakee 328 



cited on section near Newport, Ind 236 



Braidwood, III., well at 050 



Bridgman, Mich., structure of drift at 399 



thickness of drift at 392 



Brighton, 111., wells at 743 



Broad well, 111., wells at 708 



Brooklyn, 111., wells at 787 



Brown County, 111., altitude of 10 



general features of 712-713 



wells in 712-713 



Brown Station. 111., well near 770 



Bruilletts Creek, outwash near head of 238 \ 



Buckley, 111., wells at 061 



Buda, 111., well at 628-629 



Buell, Ira M., cited on deposits in Winnebago 



County 109-110 



cited on exposures of strife 87 



reference to 88, 135. 141 



well record collected by 570-572 



work on till ridges in Winnebago and Boone 



counties 135 



Buffalo Hart moraine, description of 74-76 



drift in 75 



Bunker Hill, 111., wells at 743 



Bureau County, HI., altitude of 9 



bowlders in 269 



buried soil in 264 



drift structure in ... 267 



general features of 626-627 



ridge in 244 



table of deep wells in 630-633 



wolls in 626-633 



Bureau Creek, topography near 246 



topography of the drainage basin of 248-250 



watershed of 512-513 



Bureau Junction, 111., altitude of rock bottom at 500 



well at 629 



Buried muck, see Muck, buried. 

 Buried peat, tee Peat, buried. 

 Buried silt, see Silt, buried. 

 Buried soil, see Soil, buried. 



Burlington, 111., buried soil near 263-264 



topography near 247-218 



wells at 596 



Burlington. Iowa, fossils found at 169 



glacial stria) at 85-86, 105 



loess at 156, 169, 183 



Burr, E. M., boring reported by 234 



Burton, 111., drift structure near 59 



wells near 717 



