INDEX. 



.A.. Page- 



Abingdon, IU-, wells at 678 



Adair, 111., well at 686 



Adams County, 111., altitude of 1" 



general features of 713-714 



ridges in 58-59 



section of well in 59 



wells in 713-718 



Adeline, 111. . wells at 605 



Adeline or Leaf River esker, altitudes and course of. 76-78 



composition of - 77-78 



iEolian loess deposits 183-184 



Aftonian soil and weathered zone 20 



Albert™ drift slieet 20,21,22 



Albion. 111., well at 776 



Allien, 111., well at 576 



Alden, \V. C, traces of Tolleston beacb found by 448 



Aledo, 111., wells at "-• 622 



Alexander, III., wells at 723-724 



Alexander County, 111., altitude of 11 



Algonquin, 111., wells at 578 



Alley an, Mich., sections near 359,300 



wellat 359 



Allegan County, Mich., moraine in 348-349 



section of well in ."- 402 



th ickness of drift in 355 



W „H. S i n 362. 363, 364 



Alpha. 111., wells at 625 



Alpine, 111. wells near 590 



Alsey, 111., wells near 722 



Alta, 111., wells at and near 207, 674-675 



Altaniont, III., wells at 753-751 



Altitudes of drift surface and rock floor, table show- 

 ing 9-11 



of Shelbyville moraine 194-195 



Alton, 111 .glacial si rial at 8G-87 



taw of mastudun found above 166 



loessat 1«3 



wells at 749 



Alvin. Ill , well at 700 



Amboy. 111., wells at 610 



Analyses, bluff loess 161 



bowlder clays 163 



clavs of Pleistocene age 411 



l,, ess 164 



upland loess 162 



Andover, 111., wells at 625 



Andrews. Edmund, cited on bar north of Evanston . 445 



cited on beaches of Lake. Chicago 418-419 



cited on pockets of dry sand in lake tunnel 408 



cited on tile present beach of Lake Michigan ... 453 



estimates of extent of beacli of Lake Michigan, 



made by 454-156, 459 



on the emergence of Lake Chicago 440 



Anua, 111., wells at 780 



Page. 



Areola, 111., wells at and near 222, 731 



Argo, 111., wellat 613 



Arlington Heights, 111 , wells at .' 587 



Artesian wells in the Mississippi Valley 56 



Artingstall, Samuel G., cited on thickness of drift in 



Chicago 406 



drift-buried valley first noted by 583 



Apple Creek, watershed of 522 



Applo River, effect of glaciatiou upon 477 



Ash Grove, drift sheets at 142 



wells near 661 



Asbkum, 111., wells near 057 



Ashland, 111., section of .drift beds in coal shaft at. . 127 

 Ashley, George H., quoted on changes in Pigeon 



Creek drainago basin 98 



Ashley, 111., wells near 770 



Ashton, 111., wellsat 609 



Astoria, 111., wellsat 688 



Atlanta, 111., section of well at 206 



wells at 707-708 



Augusta, 111., wells at 683 



Aurora, 111., wells at 599 



Au Sable Creek, watershed of 508 



Austin, H. W., information furnished by. . - 360 



Ava, 111., wellsat 780 



Axis of upheaval 15 



IB. 



Bailey, Ind., section of well at 396 



Bain, H. F., aid by 147,148,187 



cited on loess deposition 182 



cited on sub-Aftonian and Kansan ice sheets 23 



examination of Warsaw exposures 94-95 



reference to 41. 4t> 



Baker. M. N., cited on sources of city water supply-- 557 



Bald Mound 299 



Bannister, H. M., cited on section of coal shaft at 



Bloomington, 111 108 



cited on southwestward outlet from Lake Michi- 

 gan Basin 418 



Barringtou, 111., wells at .- 581 



Barry, 111., wells near 719 



Bartlett, 111., well at 585 



Base lines defined 4-6 



Uasseron Creek, course and drainage of 535 



Bay Creek, chert near 62 



course of 480-481 



wells at 64 



Bay lis, II 1 ., section of well north of 63 



wells at 720 



Beaches, discussion of a possible second emergence 



of 446-447 



Beartlstown, 111., altitude of rock bottom at. . 500 



wells at 711 



799 



