第6章

类别:其他 作者:John Jacob Astor字数:13145更新时间:18/12/18 08:53:24
Therewasnomistakingit。Theysoondiscoveredasmallice—capatonepole,andthenmadeoutoceansandcontinents,withmountains,forests,rivers,andgreenfields。Thesightlastedbutafewmomentsbeforetheysweptby,buttheysecuredseveralphotographs,andcarriedavividimpressionintheirminds。 Hildaappearedtobeabouttwohundredmilesindiameter。 \"Howdoyouaccountforthatlivingworld,\"BearwardenaskedCortlandt,\"onyourtheoryofsizeandlongevity?\" \"Therearetwoexplanations,\"repliedCortlandt,\"ifthetheory,asIstillbelieve,iscorrect。Hildahaseitherbeenbroughttothissystemfromsomeotherlessmatured,inthetrainofacomet,andbeencapturedbytheimmensepowerof\"Jupiter,whichmightaccountfortheeccentricityofitsorbit,orsomeaccidenthashappenedtorejuvenateithere。Acollisionwithanotherminorplanetmovinginanorbitthatcrosseditsown,orwiththeheadofalargecomet,wouldhavereconverteditintoastar,perhapsafterithadlongbeencold。Acometmayfirsthavesochangedthecourseofoneoftwosmallbodiesastomakethemcollide。Thisseemstomethemostplausibletheory。OverahundredyearsagotheEnglishastronomer,Chambers,wroteofhavingfoundtracesofatmosphereinsomeoftheseminorplanets,butitwasgenerallythoughthewasmistaken。Onereasonweknowsolittleaboutthisgreatswarmofminorplanetsis,thattillrecentlynoneofthemshowedadisktothetelescope。Inasmuchasonlytheirlightwasvisible,theywereindistinguishablefromstars,exceptbytheirslowmotion。Ahundredyearsagoonlythreehundredandfiftyhadbeendiscovered;ourphotographicstar—chartshavesincethenshownthenumberrecordedtoexceedonethousand。\" CHAPTERIV。 PREPARINGTOALIGHT。 ThatafternoonAyraultbroughtoutsomestatisticaltableshehadcompiledfromagreatnumberofbooks,andalsoadiagramofthecomparativesizesoftheplanets。\"Ihavebeennotalittlepuzzledatthediscrepanciesbetweeneventhebestauthors,\"hesaid,\"scarcelyanytwobeingexactlyalike,whileeverydecadehasseenacceptedtheoriesradicallychanged。\"Sayingwhich,hespreadouttheresultofhislabours(shownonthefollowingpages),whichthethreefriendsthenstudied。 (1)Meandistancefromsuninmillionsofmiles(2)Semimajoraxisoforbit,earth\'sdistanceas1 (3)Eccentricityoforbit(4)Planetsinclinationoforbittoelliptic(5)Lightatperihelion(6)Lightatapehelion(7)Heat,earthas1 (1)(2)(3)(4)(5)(6)(7) Mercury……36。00。3870。20567@0\'8\"10。584。596。67 Venus……67。20。7230。00683@23\'35\"1。941。911。91 TheEarth。92。91。0000。0680@0\'0\"1。030。9971。00 Mars……141。51。5240。09331@51\'2\"0。520。3601。43 Asteroids204。4to2。2000。4to5@—35@325。2to3。5000。34 Jupiter……483。35。2030。04831@18\'41\"0。040。0340。037 Saturn……886。09。5390。05612@29\'40\"0。0120。00990。011 Uranus……1781。919。1830。04630@46\'20\"0。00270。00250。003 Neptune。2791。630。0550。00901@47\'2\"0。00110。00110。001 (1)MOVEMENTINORBIT。Velocitycomparedwithearthas1。 (2)MOVEMENTINORBIT。Periodofrevolutioninyearsanddays。 (3)MOVEMENTINORBIT。Orbitalvelocityinmilespersecond。 (4)Meandiameterinmiles(5)Surfacecomparedwithearthas1。 (6)Volumecomparedwithearthas1。 (7)Masscomparedwithearthas1。 Planets(1)(2)(3)(4)(5)(6)(7) Mercury……0。8823to351。63,0000。140。0560。13 Venus……0。2241/221。91。177,7000。940。920。78 TheEarth……1。0018。51。07,9181。001。001。00 Mars……1。8815。00。814,2300。280。1390。124 Asteroids……3。29……Fromafewto6。56 milesto300 Jupiter……11。868。10。4486,500118。31309。00316。0 Saturn……29。466。00。321,0000。4760。095。0 Uranus……84。024。20。2331,90016。365。014。7 Neptune……164。783。40。1834,80019。390。017。1 (1)Lengthofday。hrs。min。sec。 (2)Lengthofseasons(3)DENSITYComparedwithearthas1 (4)DENSITYComparedwithwateras1 (5)FORCEOFGRAVITYATSURFACEOFPLANETComparedwithearthas1。 (6)FORCEOFGRAVITYATSURFACEOFPLANETBodiesfallinonesecond。 (7)Inclinationofaxis。 Planets(1)(2)(3)(4)(5)(6)(7) Mercury……1。247。170。8513。7…… Venus……232122……0。925。210。8313。453+ TheEarth……Spring,931。005。671。0016。09231/2 Summer,93 TerrestrialdaysAutumn,90 Winter,89 Mars……243723Spring,1910。962。540。386。2271/2 Summer,181 MartiandaysAutumn,149 Winter,147 Asteroids Jupiter。95528……0。221。292。5540。9811/2 Saturn……102917……0。130。631。1518。5327 Uranus……0。181。410。9114。6102(?) Neptune……0。2000。8814。2…… \"Yousee,\"Ayraultexplained,\"onJupiterweshallneedourapergeticoutfitstoenableustomakelongmarches,whileonSaturntheywillnotbenecessary,theincreaseinourweightasaresultofthatplanet\'ssizebeingconsiderablylessthantheusualloadcarriedbytheRomansoldier。\" \"Idonotimagine,\"saidCortlandt,\"weshouldlongbetroubledbygravitationwithoutourapergeticoutfitsevenonJupiter,for,thoughourweightwillbemorethandoubled,wecantakeoffonequarterofthewholebyremainingneartheequator,theirrapidrotationhavingapparentlybeengivenprovidentiallytoallthelargeplanets。Naturewilladaptherselftothischange,astoallothers,veryreadily。AlthoughthereclamationofthevastareasoftheNorthAmericanArcticArchipelago,Alaska,Siberia,andAntarcticWilkesLand,fromthedeath—gripoftheiceinwhichtheyhavebeenheldwillrelievethepressureofpopulationforanothercentury,attheendofthattimeitwillsurelybefeltagain;itisthereforeaconsolationtofeelthatthemightyplanetsJupiterandSaturn,whichwearecomingtolookuponasourheritage,willnotcrushthelifeoutofanyhumanbeingsbytheirownweightthatmayalightuponthem。\" Beforegoingtobedthateveningtheydecidedtobeupearlythenextday,tostudyJupiter,whichwasalreadyabrilliantobject。 Thefollowingmorning,onawakening,theywentatoncetotheirobservatory,andfoundthatJupiter\'sdiskwasplainlyvisibletothenakedeye,andbeforenightitseemedaslargeasthefullmoon。 TheythenpreparedtochecktheCallisto\'sheadlongspeed,whichJupiter\'sattractionwasbeginningtoincrease。Whenabouttwomillionmilesfromthegreatplanet,whichwasconsiderablyontheirleft,theyespiedCallistoaheadandslightlyontheirright,asDeepwatershadcalculateditwouldbe。Applyingamildrepulsiontothis——whichwasitselfquiteaworld,withitsdiameterofoverthreethousandmiles,thoughevidentlyascoldanddeadastheearth\'soldmoon——theyretardedtheirforwardrush,knowingthattheresultingmotiontowardsJupiterwouldbehelpedbythegiant\'spull。Wishingtobeingoodconditionfortheirlanding,theydividedtheremainderofthenightintowatches,twogoingtosleepatatime,themanondutystandingbytocontrolthecourseandtogetphotographicnegatives,onwhich,whentheyweredeveloped,theyfoundtwocrescent—shapedcontinents,aspeckledregion,andanumberofislands。By7A。 M。,accordingtoEasternstandardtime,theywerebutfiftythousandmilesfromJupiter\'ssurface,thegiganticglobefillingnearlyonesideofthesky。Inpreparationforasally,theygottheirgunsandaccoutrementsready,andthengaveapartingglanceatthecar。Theirchargeofelectricityfordevelopingtherepulsionseemedscarcelytouched,andtheyhadstillanabundantsupplyofoxygenandprovisions。Thebarometerregisteredtwenty—nineinches,showingthattheyhadnotlostmuchairinthenumerousopeningsofthevestibule。Thepressurewasaboutwhatwouldbefoundatanaltitudeofafewhundredfeet,partoftherarefactionbeingnodoubtduetothefactthattheydidnotclosethewindowsuntilataconsiderableheightaboveVanCortlandtPark。 Theysawtheyshouldalightinalongitudeonwhichthesunhadjustrisen,therockytopsofthegreatmountainsshininglikehelmetsinitsrays。Soontheyfeltasharpcheckingoftheirforwardmotion,andsaw,fromthechangedappearanceofthestarsandthesun,thattheyhadenteredtheatmosphereoftheirnewhome。 NotevendidColumbus,standingattheprowoftheSantaMaria,withtheNewWorldbeforehim,feeltheexultationanddelightexperiencedbytheselatter—dayexplorersofthetwenty—firstcentury。Theirfirstadventuresonlandingthereaderalreadyknows。 CHAPTERV。 EXPLORATIONANDEXCITEMENT。 Whentheyawoke,theflowersweresingingwiththevolumeofacathedralorgan,thechantrisingfromallaroundthem,andthesunwasalreadyabovethehorizon。Findingadeepnaturalspring,inwhichthewaterwasataboutblood—heat,theypreparedforbreakfastbytakingabath,andthenfoundtheyhadbroughtnothingtoeat。 \"Itwasstupidofusnottothinkofit,\"saidBearwarden,\"yetitwillbetoomuchoutofourwaytoreturntotheCallisto。\" \"Wehavetworiflesandagun,\"saidAyrault,\"andhavealsoplentyofwater,andwoodforafire。Allweneedisgame。\" \"Theoldexcuse,thatithasbeenalreadyshotout,cannotholdhere,\"saidCortlandt。 \"Seeingthatwehaveneitherwingsnorpneumaticlegs,andnotknowingtheadvantagegivenusbyourrifles,\"addedBearwarden,\"itshouldnotbeshyeither。Sofar,\"hecontinued,\"wehaveseennothingedible,thoughjustnowweshouldnotbetooparticular;butnearaspringlikethisthatkindmustexist。\" \"Thequestionis,\"saidtheprofessor,\"whetherthegamelikewarmwater。Ifwecanfollowthisstreamtillithasbeenonthesurfaceforsometime,ortillitspreadsout,weshalldoubtlessfindahuntsman\'sparadise。\" \"Abrightidea,\"saidBearwarden。\"Let\'shaveourgunsready,and,asoldDeepwaterswouldsay,keepourweathereyeopen。\" Thestreamflowedoffinasoutheasterlydirection,sothatbyfollowingittheywenttowardsthevolcanoes。 \"Itishardtorealize,\"saidtheprofessor,\"thatthosemountainsmustbeseveralhundredmilesaway,forthereasonthattheyarealmostentirelyabovethehorizon。ThisapparentflatnessandwiderangeofvisionisofcoursetheresultofJupiter\'svastsize。Withsufficientlykeensight,oraidedbyagoodglass,thereisnoreasonwhyoneshouldnotseeatleastfivehundredmiles,withbutaslightelevation。\" \"Itissurprising,\"saidAyrault,\"thatinwhatisevidentlyJupiter\'sCarboniferousperiodtheatmosphereshouldbesoclear。 Ourideahasbeenthatatthattimeonearththeairwasheavyanddense。\" \"Soitwas,anddoubtlessishere,\"repliedCortlandt;\"butyoumustrememberthatboththosequalitieswouldbegivenitbycarbonic—acidgas,whichisentirelyinvisibleandtransparent。 Nogasthatwouldbelikelytoremainintheairwouldinterferewithsight;watervapouristheonlythingthatcould;andthoughthecrustofthisplanet,evennearthesurface,isstillhot,thesunbeingsodistant,thevapourwouldnotbe,raisedmuch。 Byavoidinglowplacesnearhotsprings,weshalldoubtlesshaveverynearlyasclearanatmosphereasonearth。Whatdoessurprisemeistheeasewithwhichwebreathe。Icanaccountforitonlybysupposingthat,theCarboniferousperiodbeingalreadywelladvanced,mostofthecarbonicacidisalreadylockedupintheforestsorinJupiter\'scoal—beds。\" \"How,askedBearwarden,\"doyouaccountforthe\'greatredspot\' thatappearedherein1878,lastedseveralyears,andthengraduallyfaded?ItwastakenasunmistakableevidencethatJupiter\'satmospherewasfilledwithimpenetrablebanksofcloud。 Infact,youremembermanyoftheoldbookssaidwehadprobablyneverseenthesurface。\" \"Thathaspuzzledmeverymuch,\"repliedCortlandt,\"butIneverbelievedtheexplanationthengivenwascorrect。TheCarboniferousperiodisessentiallyoneofgreatforestgrowth; sotherewouldbenothingoutofthewayinsupposingthespot,notwithstandingitslengthoftwenty—seventhousandmilesanditsbreadthofeightthousandmiles,tohavebeenforest。Itoccurredinwhatwouldcorrespondtothetemperateregiononearth。Now,thoughtheaxisofthisplanetispracticallystraight,thewindsofcoursechangetheirdirection,andsothetemperaturedoesvaryfromdaytoday。Whatismoreprobablethanthat,owingperhapstoaprolongednortherorcoldspell,alongstripofforestlyingnearthefrostlinewasbroughtafewdegreesbelowit,sothattheleaveschangedtheircoloursastheydoonearth?Itwould,itseemstome,beenoughtogivethesurfaceadistinctcolour;andthefactthatthespot\'sgreatestlengthwaseastandwest,oralongthelinesoflatitude,sothatthewholeofthatregionmighthavebeenexposedtothesameconditionsoftemperature,strengthensthishypothesis。Thestrongestobjectionis,thatthespotissaidtohavemoved;butthemotion——fiveseconds——wassoslightthatitmighteasilyhavebeenanerrorinobservation,orthefirstareaaffectedbythecoldmayhavebeenenlargedononeside。ItseemstomethatthestabilitythespotDIDhavewouldmakethecloudtheoryimpossibleonearth,andmuchmoresohere,withthefarmorerapidrotationandmoreviolentwinds。Itmayalsohavebeenacloudofsmokefromavolcanoineruption,suchaswesawonourarrival,thoughitisdoubtfulwhetherinthatcaseitwouldhaveremainednearlystationarywhilegoingthroughitsgreatestintensityandfading,whichwouldlookasthoughtheturnedleaveshadfallenoffandbeengraduallyreplacedbynewones;and,inadditiontothis,thespotsinceitwasfirstnoticedhasneverentirelydisappeared,whichmightmeanavolcanicregionconstantlyemittingsmoke,orthatthesurface,doubtlessfromsomecoveringwhosecolourcanchange,isnormallyofadifferentshadefromthesurroundingregion。Inanycase,wehaveasyetseennothingthatwouldindicateapermanentlycloudedatmosphere。\" Thoughtheyhadwalkedaconsiderabledistance,thewaterwasnotmuchcooled;andthoughthestream\'sdescentwassoslightthatonearthitscurrentwouldhavebeenveryslow,hereitrushedalonglikeamountaintorrent,thereason,ofcourse,beingthatagivenamountofwateronJupiterwoulddepressaspringbalance2。55timesasmuchasontheearth。 \"Itisstrange,\"saidAyrault,\"that,notwithstandingitsgreatspeed,thewaterremainssohot;youwouldthinkitsmotionwouldcoolit。\" \"Soitdoes,\"answeredtheprofessor。\"Itofcoursecoolsconsiderablymoreinagivenperiod——as,forinstance,oneminute——thanifitweremovingmoreslowly,butonaccountofitsspeedithasbeenexposedtotheairbutaveryshorttimesinceleavingthespring。\" Justbeforethemthestreamnowwidenedintoanarrowlake,whichtheycouldseewasstraightforsomedistance。 \"Thefactis,\"saidBearwarden,\"thiswaterseemsinsuchhastetoreachtheoceanthatitturnsneithertorightnortoleft,anddoesnotevenseemtowishtowidenout。\" Asthehugefernsandpalmsgrewtothewater\'sedge,theyconcludedthebestwaytotraversethelakewouldbeonaraft。 Accordingly,choosingalargeoverhangingpalm,BearwardenandAyraultfiredeachanexplosiveballintoitstrunk,abouteighteeninchesfromtheground。Oneroundwasenoughtoputitinthewater,eachexplosionremovingseveralcubicfeetofwood。 Byrepeatingthisprocessonothertreestheysoonhadenoughlargetimberforbuoyancy,sothattheyhadbuttosuperimposelightercross—logsandbindthewholetogetherwithpliablebranchesandcreeperstoformasubstantialraft。Thedoctorclimbedon,afterwhichBearwardenandAyraultcastoff,havingpreparedlongpolesfornavigating。Withalittlecaretheykepttheirbarkfromcatchingonprojectingroots,andasthestreamcontinuedtowidentillitwasaboutonehundredyardsacross,theirworkbecameeasy。Carriedalongataspeedoftwoorthreemilesanhour,theynowsawthatthewaterandthebankstheypassedwereliterallyalivewithreptilesandallsortsofamphibiouscreatures,whilewingedlizardssailedfromeveryoverhangingbranchintothewaterastheyapproached。Theynoticedalsomanybirdssimilartostorksandcranes,aboutthesizeofostriches,standingonlogsinthewater,whosebillswereprovidedwithteeth。 \"Wemightalmostthinkwewereonearth,\"saidAyrault,\"fromthelooksofthosestorksstandingononeleg,withtheotherdrawnup,wereitnotfortheirsize。\" \"Howdoyousupposetheydefendthemselves,\"askedBearwarden,\"fromthesnakeswithwhichthewaterisfilled?\" \"Isuspecttheycangiveaprettygoodaccountofthemselves,\" repliedCortlandt,\"withthoseteeth。Besides,withonlyonelegexposed,thereisbutaverysmallobjectforasnaketostrikeat。Fortheirnumberandsize,Ishouldsaytheirstruggleforexistencewascomparativelymild。Doubtlessnon—poisonous,or,forthatmatter,poisonoussnakes,formagreatpartoftheirdiet。\" Onpassingthebendinthelaketheynoticedthatthebankswereslightlyhigher,whilepalms,pine—trees,andrubberplantssucceededtheferns。Inthedistancetheynowheardatremendouscrashing,whichgrewlouderasthesecondspassed。Itfinallysoundedlikeanearthquake。Involuntarilytheyheldtheirbreathandgraspedtheirweapons。Finally,atsomedistanceinthewoodstheysawadarkmassmovingrapidlyandapproachingtheriverobliquely。Palmsandpine—treeswentdownbeforeitlikestraws,whileitsheadwascontinuallyamongtheupperbranches。 Asthemonsternearedthelake,thewaterattheedgesquivered,showinghowitsweightshookthebanksateachstride,whilestumpsandtree—trunksonwhichitsteppedwerepressedoutofsightintheground。Ageneralexodusoftheotherinhabitantsfromhislineofmarchbegan;themoccasinsslidintothewaterwithalowsplash,whiletheboa—constrictorsandthetree—snakesmovedoffalongthegroundwhentheyfeltittremble,andanumberofnightbirdsretreatedintothedenserwoodswithloudcriesatbeingsorudelydisturbed。Thehugebeastdidnotstoptillhereachedthebank,wherelieswitchedhistail,raisedhisproboscis,andsniffedtheairuneasily,hisheightbeingfullythirtyfeetandhislengthaboutfifty。Onseeingtheraftanditsoccupants,helookedatthemstupidlyandthrewbackhishead。 \"Heseemstobeturninguphisnoseatus,\"saidBearwarden。 \"Allthesame,hewilldowellforbreakfast。\" Asthecreaturemoved,hischeststruckahugeoverhangingpalm,tearingitoffasthoughithadbeenareed。Brushingitasidewithhistrunk,hewasabouttocontinuehismarch,whentworiflereportsrangouttogether,rousingtheechoesandanumberofbirdsthatscreechedloudly。 CHAPTERVI。 MASTODONANDWILL—O\'—THEWISPS。 Bearwarden\'sbulletstruckthemammothintheshoulder,whileAyrault\'saimwasfartherback。Astheballsexploded,ahalf—barrelfuloffleshandhidewasshotfromeach,leavingtwogapingholes。Instantlyherushedamongthetrees,makinghiscourseknownforsometimebyhisroars。Asheturned,Bearwardenfiredagain,butthehallflewoverhim,blowingoffthetopofatree。 \"Nowforthechase!\"saidAyrault。\"Therewouldbenoexcuseforlosinghim。\" Quicklypushingtheirrafttoshoreandsecuringittothebank,thethreejumpedoff。Thankstotheirrubberbootsandgalvanicoutfitswhichautomaticallykeptthemcharged,theywereasspryastheywouldhavebeenonearth。Thegroundallaboutthem,andinastriptwelvefeetwidewherethemammothhadgone,wastornup,andthevegetationtroddendown。Followingthistrail,theystruckbackintothewoods,whereinplacesthegloomcastbythethickfoliagewassodensethattherewasameretwilight,startlingastheywentnumbersofbirdsofgreyandsombreplumage,whosenecksandheads,andthesoundstheyuttered,weresoreptilianthatthethreeterrestrialsbelievedtheymustalsopossesspoisonfangs。 \"Themosthighlydevelopedthingswehaveseenhere,\"saidBearwarden,\"aretheflowersandfireflies,mostofthebirdsandamphibiansbeingsimplyloathsome。\" Astheyproceededtheyfoundtracksofblood,whichwererapidlyattractingswarmsofthereptilebirdsandsnakes,which,however,asarule,fledattheirapproach。 \"Iwonderwhatcanhavecausedthatmammothtomovesofast,andtohaveseemedsoillatease?\"saidthedoctor。\"Hismotivecertainlywasnotthirst,forhedidnotapproachthewaterinadirectline,neitherdidhedrinkonreachingit。Onewouldthinknothingshortofanearthquakeoraland—slidecouldtroublehim。\" \"Therecanbenoland—slidehere,\"saidAyrault,forthecountryistooflat。\" \"Andafteryesterday\'seruptions,\"addedBearwarden,\"itwouldseemasthoughthevolcanoescouldhavescarcelyenoughsteamlefttomaketrouble。\" Theblood—tracks,continuingtobecomefresher,showedthemtheywerenearingthegame,whensuddenlythetrailtookasharpturntotheright,evenreturningtowardsthelake。Alittlefartherittookanothersharpturn,thenfollowedaseriesofdoublings,whilestillfartherthegroundwascompletelydenudedoftrees,itstorn—upandtrampledconditionandtheenormousamountofstillwarmbloodshowinghowterrificabattlehadjusttakenplace。 Whiletheylookedabouttheysawwhatappearedtobethetrunkofatreeaboutfourfeetindiameterandsixfeetlong,withaslightcrook。Oncomingcloser,theyrecognizedinitoneoftheforefeetofthemammoth,cutascleanlyasthoughwithaknifefromthelegjustabovetheankle,andstillwarm。Alittlefarthertheyfoundthehugetrunkcuttoslivers,and,justbeyond,thebodyoftheunfortunatebeastwiththreeofitsfeetgone,andthethickhidecutandslashedlikesomuchpaper。Itstillbreathed,andAyrault,whohadatenderheart,sentanexplosiveballintoitsskull,whichendeditssuffering。 Thethreehuntersthensurveyedthescene。Thelargestandmostpowerfulbeasttheyhadbelievedcouldexistlaybeforethemdead,notfromthebiteofasnakeoranyotherpoison,butfrommechanicalinjuriesofwhichthosetheyhadinflictedformedbutaverysmallpart,andliterallycuttopieces。 \"Iamcurioustoseetheanimal,\"saidCortlandt,\"capableofdoingthis,thoughnothingshortofdynamitebombswouldprotectusfromhim。\" \"Ashehasnotstoppedtoeathisvictim,\"saidBearwarden,\"itisfairtosupposeheisnotcarnivorous,andsomusthavehadsomeothermotivethanhungerinmakingtheattack;unlesswecansupposethatourapproachfrightenedhimaway,which,withsuchpowerashemustpossess,seemsunlikely。Letussee,\"hecontinued,\"partsoftwolegsremainunaccountedfor。Perhaps,onaccountoftheirshape,hehasbeenablethemoreeasilytocarryorrollthemoff,forweknowthatelephantfootmakesacapitaldish。\" \"Fromthewayyoutalk,\"saidCortlandt,\"onewouldsupposeyouattributedthistomen。TheGoliathwepicturetoourselveswouldbeachildcomparedtothemanthatcouldcutthroughtheselegs,thoughthenecessityofbelievinghimtohavemerelygreatsizedoesnotdisprovehisexistencehere。Ithinkitprobableweshallfindthisistheworkofsomeanimalwithincisorsofsuchpowerasitisdifficultforustoconceiveof。\" \"Thereisnoindicationhereofteeth,\"saidBearwarden,\"eachfootbeingtakenoffwithacleancut。Besides,wearecomingtobelievethatmanexistedonearthduringthegreaterpart,ifnotthewhole,ofourCarboniferousperiod。\" \"Wemustreserveourdecisionpendingfurtherevidence,\"saidCortlandt。 \"Ivotewetaketheheart,\"saidAyrault,\"andcookit,sinceotherwisethemammothwillbedevouredbeforeoureyes。\" WhileBearwardenandAyraultdelvedforthis,Cortlandt,withsomedifficulty,partedthemammoth\'slipsandexaminedtheteeth。\"Fromtheconicalprojectionsonthemolars,\"saidhe,\"thisshouldbeclassedratherasamastodonthanasamammoth。\" Whenthehugeheartwassecured,Bearwardenarrangedslicesonsharpenedsticks,whileAyraultsetaboutstartingafire。HehadtouseCortlandt\'sguntoclearthedrywoodofsnakes,which,attracteddoubtlessbythedeadmastodon,cameinsuchnumbersthattheycoveredtheground,whilehugepterodactyls,morevenomous—lookingthanthereptiles,hoveredabouttheopeningabove。 Arrangingadoublelineofelectricwiresinacircleaboutthemastodonandthemselves,theysatdownanddidjusticetothemeal,withappetitesthatmighthavedismayedthewaitingthrong。 Wheneverasnake\'sheadcameincontactwithonewire,whilehistailtouchedtheother,hegaveaspasmodicleapandfellbackdead。Ifhehappenedtofallacrossthewires,lieimmediatelybegantosizzle,acloudofsmokearose,andliewasreducedtoashes。 \"Anytimethatweareshortofmastodonorothergoodgame,\"saidAyrault,\"weneednothungerifwearenotabovegrilledsnake。\" Alllaughedatthis,andBearwarden,drawingawhiskey—flaskfromhispocket,passedittohisfriends。 \"Whenwerigourfishing—tackle,\"hecontinued,\"andhavefreshfishfordinner,anentreeofrattlesnake,roastmastodonforthepiecederesistance,andbeginthewholewithturtlesoupandclams,ofwhichtheremustbeplentyontheoceanbeach,weshallwanttostayheretherestofourlives。\" \"Isuspectweshallhaveto,\"repliedAyrault\"forweshallbecomesolikeThanksgivingturkeysthattheCallisto\'sdoorwillbetoosmallforus。\" Whiletheysatandtalked,theflowersandplantsaboutthemsoftlybegantheirsong,and,asavisualaccompaniment,thefire—fliestheyhadnotbeforenoticedtwinkledthroughtheforest。 \"Mygoodness!\"exclaimedCortlandt,\"howtimegoeshere!Westartedtogetbreakfast,andnowit\'sgrowingdark。\" Hastilycuttingsomethickbuttenderslicesfromthemastodon,andimpalingthemwiththeremainsoftheheartonasharpenedstake,theytookupthewires,andthebatterythathadbeensupplyingthecurrent,andretracedtheirstepsbythewaytheyhadcome。Theirrubber—linedcowhidebootsprotectedthemfromallbutthelargestsnakes,andasthesewereforthemostpartalreadyenjoyingtheirgorge,theytrampledwithimpunityonthosethatremainedintheirpath。Whentheyhadcoveredabouthalfthedistancetotheraft,ahugeboa—constrictor,whichtheyhadmistakenforabranch,felluponCortlandt,pinioninghisarmsandbearinghimtotheground。Droppingtheirloads,BearwardenandAyraultthrewthemselvesuponthemonsterwiththeirhunting—kniveswithsuchvimthatinafewsecondsitbeatahastyretreat,leaving,asitdidso,awakeofphosphorescentlight。 \"Areyouhurt?\"askedBearwarden,helpinghimup。 \"Notintheleast,\"repliedCortlandt。\"WhatsurprisesmeisthatIamnot。Theweightofthatboa—constrictorwouldbeverygreatonearth,andhereIshouldthinkitwouldbesimplycrushing。\" Gropingtheirwaythroughtherapidlygrowingdarkness,theyreachedtheraftwithoutfurtheradventure,and,onceonthelake,hadplentyoflight。Twomoons,oneatthreequartersandtheotherfull,shonebrightly,whilethewaterwasalivewithgymnotusesandotherluminouscreatures。Sittingandlivinguponthecross—timbers,theylookedupatthesky。TheGreatBearandthenorthstarhadexactlythesamerelationtoeachotheraswhenseenfromtheearth,whiletheotherconstellationsandtheMilkyWaylookedidenticallyaswhentheyhadsooftengazedatthembefore,andsomeideaoftheimmensityofspacewasconveyedtothem。Herewasnochange;thoughtheyhadtravelledthreehundredandeightymillionmiles,therewasnomoreperceptibledifferencethaniftheyhadnotmovedafoot。Perhaps,theythought,tothetelescopes——ifthereareany——amongthestars,thesunwasseentobeaccompaniedbytwosmall,darkcompanions,forJupiterandSaturnmightbevisible,orperhapsitseemedmerelyasaslightlyvariablestar,inyearswhensun—spotswerenumerous,orasthelargerplanetsintheirrevolutionsoccasionallyinterceptedapartofitslight。AstheyfloatedalongtheynoticedanumberofwhattheytooktobeWill—o\'—the—wisps。Severalofthesegreatglobulesofpaleflamehoveredaboutthemintheair,nearthesurfaceofthewater,andanontheyrosetilltheyhungabovethetrees,apparentlyhavingnoforwardorhorizontalmotionexceptwhentakenbythegentlebreeze,merelysinkingandrising。 \"Howprettytheyare!\"saidCortlandt,astheywatchedthem。 \"Forbodiesconsistingofmarshgas,theyholdtogetherwonderfully。\" Presentlyonealightedonthewaternearthem。Itwasconsiderablybrighterthananyglow—worm,andsomewhatlargerthananarclamp,beingnearlythreefeetindiameter;itdidnotemitmuchlight,butwoulditselfhavebeenvisiblefromaconsiderabledistance。Cortlandttriedtotouchitwitharaft—pole,butcouldnotreachfarenough。Presentlyalargefishapproachedit,swimmingnearthesurfaceofthewater。WhenitwasclosetotheJack—o\'—lantern,orwhateveritwas,therewasasplash,thefishturnedupitswhiteunderside,and,thebreezebeingawayfromtheraft,thefire—ballanditsvictimslowlyfloatedofftogether。Therewerefrequentlyadozenofthesegreatglobulesinsightatonce,risinganddescending,theobserversnoticingonepeculiarity,viz。,thattheirbrightnessincreasedastheyrose,anddecreasedastheysank。 Abouttwoandahalfhoursaftersunset,ormidnightaccordingtoJupitertime,theyfellasleep,butaboutanhourlaterCortlandtwasawakenedbyaweightonhischest。Startingup,heperceivedahugewhite—facedbat,withitsheadbutafewinchesfromhis。 Itsoutstretchedwingswereabouteightfeetacross,anditfasteneditssharpclawsuponhim。Seizingitbythethroat,hestruggledviolently。Hiscompanions,awakenedbythenoise,quicklycametohisrescue,graspinghimjustashewasindangerofbeingdraggedofftheraft,andinanothermomentBearwarden\'sknifehadenteredthecreature\'sspine。 \"Thisevidentlybelongstotheblood—suckingspecies,\"saidCortlandt。\"Iseemtobethetargetforallthesebeasts,andhenceforthshallkeepmyeyesopenatnight。\" Asdaywouldbreakinbutlittleoveranhour,theydecidedtoremainawake,andtheypushedthedeadbatoverboard,whereitwassoondevouredbyfishes。Achillhadcomeupontheair,andtheincessantnoiseoftheformsoflifeaboutthemhadinameasureceased。 Cortlandtpassedaroundaboxofquinineasapreventiveagainstmalaria,andagaintheylaybackandlookedatthestars。ThemostsplendidsightintheirskynowwasSaturn。Atthecomparativelyshortdistancethisgreatplanetwasfromthem,itcastadistinctshadow,itsvastringsmakingitappeartwiceitsrealsize。Withthefirstglimmerofdawn,thefire—ballsdescendedtothesurfaceofthewateranddisappearedwithinit,theirlightsgoingout。Withasuddennesstowhichtheexplorerswerebecomingaccustomed,thesunburstuponthem,risingasperpendicularlyasattheearth\'sequator,andmorethantwiceasfast,havingfirsttingedtheskywiththemostbrillianthues。 Thestreamhadlefttheforestandswamp,andwasnowflowingthroughopencountrybetweenhighbanks。Pushingtheraftashore,theysteppedoffonthesand,and,warminguptheremainsofthemastodon\'sheart,ateasubstantialbreakfast。 Whilewashingtheirknivesinthestreampreparatorytoleavingit——fortheywishedtoreturntotheCallistobycompletingthecircletheyhadbegun——theynoticedahugeflatjelly—fishinshallowwater。Itwassotransparentthattheycouldseethesandybottomthroughit。Asitseemedtobeasleep,Bearwardenstirredupthewaterarounditandpokeditwithastick。Thejelly—fishfirstdrewitselftogethertillittouchedthesurfaceofthewater,beingnearlyround,thenitslowlyleftthestreamandrosetillitwaswhollyintheair,and,notwithstandingthesunlight,itemittedafaintglow。