GENERAL INDEX. 55 



Schuyler Co.. (A. H. WOBTHEN) IY.75-89 



Physical features IV, 75 



Sections of strata IV.76,83 



Quaternary deposits IV.77 



Coal measures IV, 77 



St. Louis group IV.84 



Keokuk group IV, 84 



Economical Geology, (coal, clays, stone, lime, iron ore, and mineral 



springs 17,85 



Analyses of coal, iron ore and mineral water IV.85-89 



Scott Co., (A. H. WOBTHEN) 111,134-144 



Physical features 111,134 



Sections of strata 111,136-139; VII, 11, 32 



Quaternary deposits 113,134 



Coal measures 111,136; Vn,ll,32 



St. Louis limestone 111,138 



Keokuk limestone 111,140 



Burlington limestone 111,140 



Economical Geology, (coal, clays, iron ore, building materials) 111,141 



Analyses of coal m, 141 , 142 



Shelby Co., (G. C. BBOADHEAD) VT.16S-174 



Physical features VI, 163 



Sections of strata VI, 128, 166-170 



Quaternary deposits VI, 165 



Coal measures VI, 166 



Economical Geology, (coal, building and road materials, agricul- 

 ture) VI, 171 



Stark Co., (H. A. GBEEN) IV.325-333 



Physical features IV.325 



Sections of strata IV.326 



Quarternary deposits ". IV, 325 



Coal measures IV.326 



Economical Geology, (stone, coal, agriculture) IV, 330 



St. Clair Co., (A. H. WOBTHEN) 1,297-312 



Physical features ." 1,297 



Sections of strata 1,226,299-303; VII, 31; VIII, 19 



Quarternary deposits 1,298; VIII, 19 



Coal measures 1,224,300 



Chester group 1,305 



St. Louis Limestone 1,307 



Economical Geology, (coal, iron ore, clays, building materials ..1,308 



Analyses of coals 1,308,309 



Stephenson Co., (JAMES SHA\V) V.57-74 



Physical features V.57 



Sections of strata I.P1. IV.opp. page 164; V.60 



Quarternary deposits V, 62 



Niagara limestone V.64 



Cincinnati shales V.65 



Trenton limestone V.66 



St. Peter's limestone V.70 



Economic Geology, (building materials, bog-iron, lead ore, peat, ag- 

 riculture) V.71 



See also J. D. WHITNEY'S report on the Lead regions 1,153-207 



