816 



INDEX. 



Toulon, 111., wells at 072 



Tower Hill, 111., wells at 739 



Townships, method of numbering 4-6 



Trail Creek, drainage basin of 539 



old bay in valley of 432 



Troy, 111 ., wells at 750 



True. F. W., cited on bones found in peat 42 



examination of animal remains by 124 



Turkey Creek, ridge along 387 



Turner Junction, 111., wells at 593 



Turner Park, IU., wells near 588 



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



Tyrrell, J. B., cited on separation of Albertan and 



sub-Aftonian drift sheets 21 



TJ. 



Udden.J.A., aid by 114,147,148,187 



analysis of loess by 159 



cited on loess deposition 177, 179 



cited on old lake bed in Muscatine County, 



Iowa 96 



cited on the rock constituents of the drifts of 



Muscatine County 44 



cited on wel Is in Rock Island County 621 



fossils collected by 115,168,170-171,173-174 



information furnished by 1 412, 



616, 618, 620, 624, 625, 630, 634 

 investigation of the preglacial course of the 



Mississippi 463,465,466 



trip with 145-146 



well record obtained by 615 



Udden, J. A., Calvin, Samuel, and Bain, H.Foster, 



work on drifts 44-45 



Udden, J. A., and McGee, W J", cited on the displace- 

 ment of the Mississippi 90 



Underground waters, classification of 550-55 



Unio fossils 167 



Union County, 111., altitude of 11 



Union Grove, HI., wells near 616 



Union Hill, 111., wells at 654 



Urbana, 111., section of boring at 235 



wells.it 702 



Ustick, 111., wells near 615 



Utica.Hl., wellsat 638 



~V. 



Valleys, preglacial 17, 18 



Valparaiso morainic system, altitude of, range in. . . 343-344 



distribution of 339-340 



drainage of the 379 



drift, thickness of 353-355 



eastern border of 340-341 



topography of 345-348 



Van Buren County, Mich., thickness of drift in 355 



wells iu 366,367,368,370,371,372 



Vaudaha, 111., wells near 752-753 



Vanderburg County, Ind., change of drainage in ... 97 



drift border in 35 



wells in 67 



Van Tuyl, S., well section of 54 



Velpen, Ind., col near 100 



Vermilion County, 111., altitude of 10 



drift structure in 267 



general features of 697-698 



till plain in 239-240 



wells in 697-700 



Page. 

 Vermilion River, course and watershed of the "Wa- 

 bash 536-537 



Vermilion River, drift structure along 283 



moraine near 279 



sand ridge near 330 



topography near 311 



watershed of 511 



Vermilionville, 111., wellat 639 



Vermont, 111., wells at 688 



Verona, 111., wells at 647 



Versailles, 111., wells at 713 



Vicksburg, Miss., analysis of loess at 161 



Vienna, 111., wellsat 786 



Virden, wells at 743 



Virginia, 111., analysis of bluff loess at 160,161 



fossils found at 171 



section at 108 



wellsat 127,711 



"W. 



Wabash County, 111., altitude of 11 



general features of 775 



wells in 775-776 



"Wabash River, deflections of 530 



drainage basin of 528-529 



gravel terraces in valley of 238 



knolls east of 228-229 



outwash in valley of 208-209 



preglacial valley of 529-530 



striae in valley of 87 



"Wallace, S. J., reierence to 95 



Wapella, 111., wells at 215,706 



Warren, G. K., cited on preglacial channel of the 



Mississippi River 469 



Warren, altitude of 566 



wells near 566 



Warren County, 111., altitude of 10 



general features of 678 



wells in 678-679 



Warrick County, Ind., changes of drainage in 98 



Warsaw, 111., analysis of soil at 163 



exposures at 94-95 



wellsat 683 



Washbvrns Mound 299 



Washington, 111., section of a cutting near 32 



wellsat 690-691 



Washington County, 111., altitude of 11 



general features of 770 



wellsin 770 



Washington Heights, 111., well at 589 



Waterloo, 111., wellsat 766 



Waterloo quartzite, movement of 110-111 



Water supply, sources of, for towns in Illinois 558-564 



Watseka, III., wellsat 659 



Waucond, 111., wells near 580 



Waukegan, 111., beach near 429 



wellsat 580 



Waupeoan Creek, watershed of 508-509 



Waverly, 111., wells at .' 724 



Wayne, 111., wells near 592 



Wayne County, III., altitude of 11 



general features of 774 



wellsin 774-775 



Waynesville, 111., wells at 706 



Wellington, 111., wells at 660 



