248 index. 



Pagb. 



Crawford county, Permywit sulphur water of 126 



reported occurrence of coal in 123 



section of strata near Phillip's coal bank in 227 



section of strata near Van Buren, in 125 



Crowley's ridge, productiveness of the soils of 23 



Cupriferous pyrites in lignites of Greene county 25 



Cythcrea, in limestone 41 



Dam, natural, of Crawford county 123 



Determination of nitric acid, method for the 190 



Dislocation of strata in Searcy county .' 79 



Dislocation of strata in White county 71 



Disturbance of strata in Conway county, evidences of the 235 



Dolomite, analysis of 174, 175 



Dolomite, method of analysis of 190 



EARTH-cracks in Greene county 202 



Earth-cracks in Poinsett county 31 



Eisenkalkstein in Washington county 118 



English method of manufacturing zinc 157 



Euomphalus in limestone 116 



Favosite in limestone 121 



Ferruginous shales of Independence county 218 



Ferruginous shales of Madison county 102 



Fishes, teeth of, in shale ■ • 220 



Formation, cretaceous, not in the north-eastern part of the State 26, 31, 32 



Formations, the three leading, of the northern counties of Arkansas 135 



Franklin county - 228 



analysis of several mineral springs of 229 



section of strata on Mulberry river in 230 



Freestone, occurrence of, in Van Buren county 75 



Freestone, occurrence of, in Washington county 120 



Fulton county 59, ~22 



character of the soils of 223 



Mammoth spring of 



60 



Pilot knob of . . ° 223 



occurrence of copper ore in 223 



of iron ore in 62, 223 



of lead ore in 223 



section near the Rapp barrens in 59 



white sandstone of 62, 223 



Gainesville, lead ore in the vicinity of 24 



Gainesville, lignite in the vicinity of 24 



Galena, method pursued in the analysis of 191 



(See lead ore.) 



General summary, inferences, and remarks in conclusion 135 



Genessee slate, probable equivalents of 97 



Geological map of the State, importance of the construction of a 139 



Geological survey, importance of 11 



Geological survey of Kentucky, results of 13 



Gold, reported occurrence of, in White county 68 



Grandfather knob of Carroll county 97 



Greene county 19, -01 



black sand lands of 25, 28 30 



character of soils of 204 



earth cracks in 202 



mineral and agricultural resources of 203 



occurrence of lead ore in 24, 30 



of yellow ochre in 22, 202, 203 



potter's clay of 21, 202, 203 



quarternary shell -marl of 26, 27 



quartzose sandstone of 28, 29 



selenite in 202 



succession of strata near J. W. Pyne's, in 202 



Hoppe mine, analysis of the ore from the 148 



mode of occurrence of the zinc ore at the 211 



Houghton's diggings 209, 210 



