254 INDEX. 
Pace. 
Silver, in the lead ore of Marion county.......scesvccerececeeceeceeencsesesseseeseccares 159 
Pulaski county ....... eae alta Oa tales aetaueie hears ..---136, 240, 241 
Silver, richness of the Arkansas lead ores in, compared with the richness of the ores of other 
countries....... Acenahay betas sacle: Sra ecsl vat ave od areas oy oes se bievavas hay Wesaerarsteisare Oe 136, 161, 240, 241 
Silver ore, reported occurrence of, in Izard coUntY.......eeeeee cree ence seen eceeeceeeere . 4 
Sister: hill of Carroll: coumtyys soc cieieseiaienievece oie eine inven wi ninioin dseceiece- sass Re ee roe oe 9% 
Smithsonite, analysis Of ......scseeeeescenecccceseronececevecs ga bccnne es 148-153, 183, 184 
method of analysis Of......... ce seeeeee ence i ceusabsarcubsosesdehnht Gites SEMA AE anenas 186 
occurrence of, in Lawrence county ....... wesc cece eer er eee ee reeeeace apeeeaaes 63 
55 
Soils of Greene county, character of.......... gt canine bts & Sesyasdgesaasnenenansi ties BS AONAte sraveus 
Randolph county, 
Jackson ccuaty, 
Lawrence county, 
Independence county, 
Fulton county, 
Pope county, 
Prairie county, 
Pulaski county, 
Crowley’s ridge, productiveness of ...... sci eopatannubcauscanasayetpnniersitcee ares MO ate eaabaiee er 23 
Spadra coal of Johnson county .......s.eseee Oe re rere rT Cre TTT snvercewan 129 
Sphenopteris in shale of coal-measures ............. ab oidoateieleteaerniwicins aurea se eeernegers 20 
Spivifer voce ce cece cee cee n eee n cent eee e eee e eee ee een eee ones Su cbeb ieee ene tions 78, 98, 218 
SATIS coer nem ime een ae ws oan RERAGAs G4GGae bh jae oe Fa bOREET EDEN secesces 105, 224 
Spring, analysis of water of Rice’s.....-..seeeeeeeeeeeeee re eeeees sane eee eee reneesese 207 
Of As Lic StOWOEt Se cwscasuess Sareceele eee COPS PRET ERR ERASERS . 23, 180 
of a, in Crawford county.........-5005. leet arto ioe eie gayase 
of a chalybeate, in Franklin county....... 
of the State salt, in Franklin county.........- 
of a mineral, on Spirit creek, Franklin county......++eseseeees ae 
of the town-, of Springfield, Conway county........ eee eesanes sees 236 
of Newton and Pulaski county ........... siaibiaabers cea Sibrecbsere wid oes 241 
Puce, of Van Buren county............5+-- siatarslatersyatetoreters aioieieiaveisceters sdasereravareniverssaiave: 0D 
Eye, of Van Buren County ....... cece cece cece cere cee e nner en cent eeeeeees wretnateoneie (4D 
Black sulphur, of Van Buren county..........+-+ ahs aay ray shes sha va caer sl aera epoca 73 
Big, of independence county .........-+s+e+0+ Maswecnnueieees junds warese sietaiseate AOS 
Mammoth, of Fulton county....... sidisescerrares isis bus anayanerateve.tn vsibetsafavesns «eee. 60, 182 
sulphur, of Washington county........+.-s cess eeee cece ener eees svaissenacardresnmvens LL ALO 
chalybeate, of Washington county .........e cece cere eee eee eee sage doverarorcreuore eee 119 
Pennywit sulphur, of Crawford county........seeseeeeeeeee Tr eras ben 
Stack mountain of Carroll county... .... cece cee c cece cece cnet nee eeeeneee Piioae anes 88 
Stigmaria ficoides... cs seveecccceccceceecnereeeeneeeeneees Savon seeds iss wi hbo RNa Seen Searels 68 
St. Francis river, analysis of water of ....... aye paceuavaayanestecupads sree Sere eer ere aed 
Subcarboniferous limestones, boundary between the millstone grit and the........ 
Succession of strata in Benton county...........ee ee eeec eee eee aisateraeta covets oreyiets 
Succession of strata hear J. W. Pyne’s, Greene county ..........++ svavaieieleieialeleleleaauaaye ovdee 202 
Sugar loaf hill of Marion COUnby cxws cnaeioseeanedemeaies Acne eemeRe or SEER Oy Rees we 50 
Sugar loaf mountain of Van Buren county.....-...seeeseesee cere ceeeceeeeees sre eiecatelslarveavs 72 
Sulphate of lime, crystals of, in Washington county ......... see see cece eee eeeeees seeeeee 113 
Sulphates of iron and alumina, exudations of, in Carroll county.........+seeeeeeeees seeave 91 
Sulphur springs of Washington county...........+eeeeeeeeeee sisi salhereorw are sstiveewoer LIT) L19 
Sulphur spring, Pennywit, of Crawford county ......ssssseeeeveeeeceeees sana eresere sakererergacpie 126 
Sulphur spring, reported existence of, in Benton county ..... deaetuayageies Lene eee nee ee ences 108 
Sulphuret of copper, see copper ore. 
of lead, see lead ore. 
of zinc, see blende. 
Summary, general, inferences and remarks in conclusion.......++sscesereeeeeseseececrenee 135 
Taste, showing the richness of the zinc ores of Arkansas compared with those of other coun- 
PELE seh seridin Besrarariis cia Guensie wiasel rete aighelavgtars dcanea:ovelpies# st bus fois tebarniora(auane auatanerwevereverdloreleed 156 
showing the value of the ores of manganese ‘ 
showing the amount of silver in the lead ores of northern Arkansas ........0++s0+05 160 
showing the comparative richness of the iron ores 
Table-land of south-western part of Van Buren county 
Tale and allied minerals in Conway county .........eeceeeeee ere 
Tale in Pulaski county ......sesseeccececceeeesceeceenee thi decir Ane da too ese aintere deterrents: (eGo. 
Teeth of fishes, in shale........ss sees cece eceees 
Terebratula plano-sulcata ....... isso natant a 
planum-bond ..ssceeceeecees bisediebauaataneid aise so Gita gu Ssafishcasginua eceiaceia poisyeinras dD 
Terra Sienna, in Izard county .........seeeeeeee ssbibiseouncave niacadezajexeyerese 44 
Trilobites in sandstone......+++++e+eeee a aseautbasvois navlacanaicev vereileoce vaste fovevesecedevovavetans vaxasncsusls Hiedien QS 
Tufa, calcareous, formation of, on Mammoth spring ......csesecseceesecererereresecsevees G1 
