54 GENERAL INDEX. 



Pike Co., Analyses of hydraulic limestone IV.40 



" Analyses of mineral water IV.41 



Pope Co., (HENBY ENGELMANN) 1,428-495 



Physical features 1,428,450 



Sections of strata 1,441,445,462 



Tertiary and post-tertiary 1,447 



Coal measure conglomerates 1,477 



Chester group 1,438,460 



St. Louis group 1,435,459 



Economical Geology, (coal, lead ore, iron ore, fluor spar, epsomite, 



building materials, clay, millstones, agriculture) 1,452,484 



Indian remains I, ,455,495 



Pulaski Co., (HENBY ENGELMANN) 1,410-427 



Physical features 1,410 



Sections of strata 1, 420 



Tertiary and post-tertiary 1,417 



St. Louis limestone 1,414 



Clear Creek limestone 1, 414 



Economical Geology, (iron ore, mineral springs, building stone, clay, 

 agriculture) 1,423 



Putnam Co. See Marshall and Putnam counties. 



Randolph Co., (A. H. WOETHEN) 1,278-298 



Physical features 1, 278 



Sections of strata 1,77,281 



Quarternary deposits ....1,280 



Coal measures 1,281 



Chester group 1, 40,77, 284 ; VII, 36 



St. Louis limestone , , 1,292 



Economical Geology, (coal, building materials, agriculture) ..1,293; VII, 36 



Richland Co' See Lawrence and Richland Counties. 



Rock Island Co., (A. H. WOBTHEN and JAMES SHAW) V.217-234 



Physical features V, 217, 226 



Sections of strata V.220-231 



Quaternary deposits V,218,233 



Coal measures V.219-228; VII, 1 



Hamilton limestone V.222, 227 



Niagara limestone V, 223 



Economical Geology, (building stone, lime, clay, coal, mineral 



springs) V, 224, 233 



Saline Co., (E. T. Cox) VI, 220-234 



Physical features V.220 



Sections of strata VI.221-231: VIII.54 



Quaternary deposits VI, 232 



Coal measures VI.223; VII.4,7; VIII.54 



Chester limestone , VI, 221 



Economical Geology, (salt, building 'stone, lime, clay, agriculture) ..VI, 232 



Sangamon Co., (A. H. WOBTHEN) V, 306-319 



Physical features V, 306 



Sections of strata V.307-315; VII, 4, 13,28: VIII, 16 



Quaternary deposits V.306; VIII, 16 



Coal measures 1,227; V.309; VII, 4,6,13, 28 



Economical Geology, (coal, building materials, agriculture) V.317 



