AgatesworkedbythehandofmanarefoundingreatquantitiesinthebonebedsoftheGodavery。Somejavelinheadsinsandstone，basalt，andquartz，withscrapersandknives，mostofthemflatononesideandroundedontheother，appeartobeevenmoreancientthantheagateimplements。SomeoftheceltsresemblethoseofEuropeantype，otherstheflintweaponsfoundinEgypt，andtheclumsiestformsmaybecomparedtothosestillinuseamongstthenativesofAustralia。WemayalsomentionasomewhatraretypelatelydiscoveredintheislandofMelas，whichhavebeencharacterizedassaw-bladedknives。A
letterfromRivett-CarnacannouncesthediscoveryofweaponsandstoneimplementsinBanda，awildmountaindistrictonthenorthwestofIndia。Thescrapers，hesays，strangelyresemblethoseoftheEsquimaux，andthearrow-headsthoseofthemostancientinhabitantsofAmerica。[34]
ManymegalithicmonumentsaremetwithinplaceswidelyremovedfromeachotherinthevastIndianEmpire。CaptainCongreve，afterdescribingthecairnswiththeirrowsofstonesrangedincircles，thekistvaensordolmens，thehugerocksplacederectasatStonehenge，thebarrowshollowedoutofthecliffs，declareswithundisguisedastonishmentthatthereisnotaDruidicalmonumentofwhichhehadnotseenthecounterpartintheNeilgherryMountains。[35]
GeneralFaidherbedividesAfricaintotwodistinctregions——onenorthoftheGreatDesert，wheretheinhabitantsandthefaunaandflorahaveallalikecertaincharacteristicsincommonwiththoseofEurope；andtheothersouthoftheSahara，whichwasatonetimeseparatedfromthatinthenorthbyavastinlandsea。InthissouthernregionweareinNigritia，ortheAfricaofthenegroes，wheretheinhabitantsintheirphysicalcharacteristicsandintheirlanguage，themammals，andtheplants，differaltogetherfromthoseofthenorth。Inonepoint，however，thesetworegionsresembleeachother：inbothwerecognizeaStoneage，whichexistedinAlgeriaandinEgypt，aswellasonthebanksoftheSenegalandattheCapeofGoodHope。ThevalleyoftheNilefromCairotoAssouanhasyieldedaseriesofobjectsinflint，porphyry，andhornblendicrock，retainingtracesofhumanworkmanship，andremindingusofsimilarimplementsofEuropeantype。Theseobjects，[36]saysM。Arcelin，arealwaysfoundeitherbeneathmoderndepositsoratthesurfaceoftheupperplateauxatthehighestpointtowhichtheriverrises；
nothinghas，however，beenfoundinthealluvialdepositsoftheNile，inspiteofthemostperseveringsearch。AtthePrehistoricCongressheldatStockholm，someworkedflintswereproducedthathadbeenfoundintheLibyanDesert。Thisonceinhabiteddistrict，nowwithoutwaterorvegetation，canonlybereachedatthepresentdaywiththegreatestdifficulty。Isnotthisyetanotherproofofthegreatchangeswhichhavetakenplacesincetheadventofman？Lastly，theBoulakMuseumcontainsawholeseriesofstoneweaponsandimplements，showingintheirworkmanshipaprogressivedevelopmentsimilartothatwefindinEurope。ManyarchaeologistsareofopinionthattheworkedflintsfoundintheplainsofLowerEgyptdatefromNeolithictimes。ThosealonearePaleolithicwhichhavebeenfoundinadeposithardenoughforthehollowingoutoftombs，whicharecertainlyearlierthantheeighteenthdynasty。Wemustadd，however，thatneitherwiththePalaeolithicnorwiththeNeolithicrelicshavebeenfoundanybonesofextinctanimals。Somesavantsgoyetfurther：