46 GENERAL INDEX. 



Clinton Co., Sections of strata 1,223, 111,178 



Upper Coal measures (Upper Sandstone, Shoal Creek limestone, 



Slaty division. Lower sandstone) 111,174 



Lower Coal Measures 111,174; VII, 9,10 



Economical geology, (coal, iron ores, building material agriculture) . . Ill, 186 



Coles Co. See Cumberland, Coles and Douglas Counties. 



Cook Co.,(H. M. BANNISTEE) m,239-256 



Physical features III. 239 



Sections of strata 111,241,244 



Quaternary deposits 111,240 



Niagara group 111,245 



Artesian boring (Niagara Lower Magnes ian) Ill, 244 



'Economical Geology, (building stone, lime and cement, clay, sand, 

 peat, bitumens, minerals in the drift, soil) 111,253 



Crawford Co., (A. H. WOBTHEN) TI.22-30 



Physical features V.22 



Sections of strata. VI.23-28 



Quaternary deposits VI.22 



Coal measures VI, 23 



Economical Geology, (building stone, lime, iron ore, sand, gravel, 



clay, soil, timber) VI.29 



Indian mounds VI, 90 



Cumberland, Coles and Douglas Counties. (A. H. WOBTHEN) VI.98-111 



Physical features VI.98,104,110 



Sections of strata VI.99-109; VIII,17,26 



' ' Upper Coal measures (no coal seams) VI.98, 105, 110 



" Economical Geology, (building stone, lime, iron ore, sand, clay, soil, 



timber) VI.103, 109 



DeKalb.Kane and DuPage Counties (H. M. BANNISTEB) IV, 111-125 



' ' Physical features IV, 111 



Sections of strata IV.114,138 



' ' Quaternary system IV.112 



Niagara group IV.114 



Cincinnati group IV, 121 



' ' Trenton group IV.122 



' ' Economical Geology, (building stone, limestone for lime, other build- 

 ing material, peat, agriculture, etc) IV, 125 



DeWitt Co., (No general report.) 



sections at Clinton and Farmer City VII. 16: VIII.13,34.35,58 



Douglas Co. See Cumberland, Coles and Douglas Counties. 



DuPage Co. See DeKalb, Kane and DuPage Counties. 



Edgar Co. See Champaign, Edgar and Tord Counties. 



Edwards Co. See Wabash and Edwards Counties. 



Efflngham Co., (G. C. BBOADHEAD) VI.175-184 



Physical features VI, 175 



Sections of Strata VI.176-181; VH.33; VIII.55 



Quaternary deposits VI, 176 



' ' Coal measures VI, 177 



Economical Geology, (coal, iron ore, building rock, potter's clay, 

 water, soil, "scalds") VI.182 



Fayette Co., (G. C. BBOADHEAD and A. H. WOBTHEN) VI, 135-148 



Physical features VI , 135 



Sections of strata... VI. 128, 137-142, 147 



