Withoutatpresententeringminutelyintothisfeatureoftheclimate,itmayberemarkedthattheKurumandistrictpresentsevidenceofthisdrysouthernregionhaving,atnoverydistantdate,beenaswellwateredasthecountrynorthofLakeNgamiisnow。
Ancientriver-bedsandwater-coursesabound,andtheveryeyesoffountainslongsincedriedupmaybeseen,inwhichtheflowofcenturieshasworntheseorificesfromaslittoanovalform,havingontheirsidesthetufasoabundantlydepositedfromtheseprimitivewaters;
andjustwherethesplashings,madewhenthestreamfellontherockbelow,maybesupposedtohavereachedandevaporated,thesamephenomenonappearsManyofthesefailingfountainsnolongerflow,becausethebrinkoverwhichtheyranisnowtoohigh,orbecausetheelevationofthewesternsideofthecountryliftsthelandawayfromthewatersupplybelow;butletacuttingbemadefromalowerlevelthanthebrink,andthroughittoapartbelowthesurfaceofthewater,andwaterflowsperennially。
SeveraloftheseancientfountainshavebeenresuscitatedbytheBechuanasnearKuruman,whooccasionallyshowtheirfeelingsofself-esteembylaboringformonthsatdeepcuttings,which,havingoncebegun,theyfeelboundinhonortoperseverein,thoughtoldbyamissionarythattheycanneverforcewatertorunuphill。
ItisinterestingtoobservetheindustryofmanyBoersinthisregioninmakinglonganddeepcanalsfromlowerlevelsuptospotsdestituteoftheslightestindicationofwaterexistingbeneathexceptafewrushesandapeculiarkindofcoarse,reddish-coloredgrassgrowinginahollow,whichancientlymusthavebeentheeyeofafountain,butisnowfilledupwithsofttufaInotherinstances,theindicationofwaterbelowconsistsoftherushesgrowingonalong,sandyridgeafootortwoinheightinsteadofinafurrow。