254 INDEX - 



Page. 



Silver, in the lead ore of Marion county 159 



Pulaski county 136, 240, 241 



Silver, richness of the Arkansas lead ores in, compared with the richness of the ores of other 



countries 136, 161, 240, 241 



Silver ore. reported occurrence of, in Izard county 43 



Carroll county 97 



Smithsonite, analysis of 148-153, 183, 184 



method of analysis of » 186 



occurrence of, in Lawrence county 63 



Marion county 55 



Soils of Greene county, character of 204 



Randolph county, do 207 



Jackson county, do 215 



Lawrence county, do 214 



Independence county, do 222 



Fulton county, do 223 



Pope county, do 234 



; ilrie county, do 242 



Pulaski county, do 242 



Crowley's ridge, productiveness of 23' 



Spadra coal of Johnson county 129 



Sphenopi tris in shale of coal-measures , 227 



Spirifer 78, 98, 218 



slriatus 105, 2:24 



Spring, analysis of water of Rice's 207 



of A. L. Stewart's 23, 180 



of a, in Crawford county 228 



of a chalybeate, in Franklin county 223 



of the State salt, in Franklin county 229 



of a mineral, on Spirit creek, Franklin county 229 



of the town-, of Springfield, Conway county 236 



of Newton and Pulaski county 241 



Puce, of Van Buren county 73 



Eye, of Van Buren county 73 



Black sulphur, of Van Buren county 73 



Big, of independence county 38 



Mammoth, of Fulton county 60, 182 



sulphur, of Washington county 117, 119 



chalybeate, of Washington county 119 



Pennywit sulphur, of Crawford county 126 



Stack mountain of Carroll county 88 



Stigmaria Jicoides 68 



St. Francis river, analysis of water of 23, 180 



SubcarboniferOus limestones, boundary between the millstone grit and the 137 



Succession of strata in Benton county 105 



Succession of strata near J. W. Pyne's, Greene county 202 



Si ar loaf hill of Marion county 50 



Si ar loaf mountain of Van Buren county 72 



Sulphate of lime, crystals of, in Washington county 113 



Sulphates of iron and alumina, exudations of, in Carroll county 91 



Sulphur springs of Washington county 117, 119 



Sulphur spring, Pennywit, of Crawford county 1-6 



Sulphur spring, reported existence of, in Benton county 108 



Sulphuret of copper, see copper ore. 

 of lead, see lead ore. 

 of zinc, see blende. 

 Summary, general, inferences and remarks in conclusion 135 



Table, showing the richness of the zinc ores of Arkansas compared with those of other coun- 

 tries L">6 



showing the value of the ores of manganese 166 



showing the amount of silver in the lead ores of northern Arkansas 160 



showing the comparative richness of the iron ores 173 



Table-land of south-western part of Van Buren county 72, 74 



Talc and allied minerals in Conway county 235 



Talc in Pulaski county "39 



Teeth of fishes, in shale 220 



T< rebratula plano-sulcata 121 



planum-bona 1~1 



Terra Sienna, in Izard county 44 



Trilobites in sandstone 218 



Tufa, calcareous, formation of, on Mammoth spring 61 



