The Arkansas advocate., 1835-07-17
 NO. g.

 1 These masses almost led me to suppose tb,, they had been deposited hy the springs. and that the iron haG thus been attracted hv molecular attraction. II is not improbable l iBat tae ferfugRous matter has been car. ried to them during the immense periods of lime which have elapsed since 4hese springs first appeared by atmospheric waters tfek- Ing amidst the tefrugiaous materials of inc ridge; the iroa certainly appears 10 be aeei4 dehtally there. ] observed also that where these great quantities of tie oxide of iron werei il was evident d stream of hot water had passed fora long period of lime, and beneath The upeiineumhente eeposite Of car bonate q! lime, which, as these bot waters have frequently changed their drectinn, might yefy well he. perceived one con. siderable underground sffea!li of hoi water issulfs from caviiy near the bailk Of tAe brook, and upon examining t, found the process going oni iron aeposiing on inc sides, and soft seams of sulphate of line al- ready established. Under ffese circl.n. stances, would not pronounce any of tliese waters natural cialybeates. IL is probable that great many mineral waters acquire \ have supposed this 10 be the Case in some sulPhuretted springs have seen, that rise through beds of slate ord coal, loaded wnh suphuret of iron. much Of which may req sonably be thought, at particular dapshs, ,o he in state q! slsecasaasyssss carbonate of iron contained iIl these waseIy , we may inlefa different origin; nor can ve consistently assis.sE!. ssis.ssE. to tic rrodaiotis ouan- tity of calorc which has probably for soch RI i;siiiiei.se Psfi0d of time faised lie lem perature of these springs, aty source short of those depths from whence the intrusive rocks, the veins Of iron, aud various other mineral phenomena of the vicinity have sprung.
 These thermal waters rise in n very lia,- pid state, but as soon as they get into mo- ton, and their parts become exposed 10 the atmosphere, | mineral deposite culnnaen- ces, attaching itself to dead. leaves, 10 sticks, to any tbing that serves for Il point ci idllesion. Upon this deposlie q brilliant green cnanlelled looking subsahca pre- sents itself which increases and dickens. in favorable situations, uniil t takes tse thickness of half m inch. When tliis eae be detached from tho caleareous matter it covers; il has vitfeo-eeatiAotls appear- ance, somewhat of the consistency of tl.oao glairy substances produced ia siagnant Wa ter in very hot weather. As lone ns inc wafer runs over 1t, t continues 10 lhiclseu and look green; but when the dcposite has damned up the course of the wafer, and another course is formed, which is con- stantly doing, then lhis green substance. be- ing torsaken by the water, dries up. and crisps on the surface Of tue ssround, ike dead liehens. This dead stuff examined with powerful glass, and found lllat ii was a mineral substance of . ls4itislt gray color; on the under side it preserved slili dead- lsh green appeaFalice. h tho course of tiufe 1t undergoes q change, and changes 4o a deep black calcafeous mould, on the sar- face of which found, as Is frequently done in decoinposing trayertns, an ifIn1ense number of individuals of various species of helix.
 "lfor many ether curious details resnect- ing this mineral substance, which appears sso affinity with iiie constituency of sorne prairies afterwards visited i'll the vicinity of Red river. l must refer so those more detailed observations that will more apPropuaeiy form part of inc labor of some future leisure hours, when some exper- mentS which have tp institute shall be ina- tured. And in relation to tn analysis of the mineral contents of the hot waters of the Wasbiia, if was always my intention to have attempted one, after ihe hest methods my very limited experience ia operations oi that hihd permitted; and had, of my departure from the Atlantic States, prosi. ded myself with such apparatus and re- agents as would have enabled me to pro- duce sonie pfoSimate results; but upon leaving St. Louis, Missouri, peyceiying it was more tbon doubtful whether Kshonld get my luggage agg tiiilougilihe mountains. and a speedy opportunity, as thought, pressAt- .se itself, ssiiits water to ihe Inp,Itil eS e White river, and it had not reached LittEe Rock when left that pIace for lie Hot Springs. ] was, therefore, obliged 10 con ftent myself with some simple examinations of the waters, and with putting up carefully some bottles of them, in order, on my re- turn, to submit them to the analysis of somo distinguished chemists, better entitled te the confidence of those interested in tile re- suit than 1 claim 10 bc; which analysis hope ere long to be able to statcs with the authority Of the natne of the anaIysts.x That these waters annually perform very admirable cures of chronic complaints incl dent 10 southern climates, IS well known there. and that their efficacy and the baa,,