Buthewasflatteredbyacomplimentofayethigherorder。HewastoldthatwhilehehoveredoverLondontheKingwasinconferencewithhisprincipalMinisters,andhisMajesty,learningthathewasinthesky,isreportedtohavesaidtohiscouncillors,"Wemayresumeourowndeliberationsatpleasure,butwemayneverseepoorLunardiagain!"Onthis,itisfurtherstatedthattheconferencebrokeup,andtheKing,attendedbyMr。PittandotherchiefofficersofState,continuedtoviewLunardithroughtelescopesaslongasheremainedinthehorizon。
ThepublicPress,notablytheMorningPostofSeptember16,paidaworthytributetotheheroofthehour,andonelastactofanexceptionalcharacterwascarriedoutinhishonour,andremainsinevidencetothishour。InameadowintheparishofStandon,nearWare,therestandsaroughhewnstone,nowprotectedbyanironrail。ItmarksthespotwhereLunardilanded,andonitiscutalegendwhichrunsthus:
LetPosterityknowAndknowingbeastonishedthatOnthe15thdayofSeptember1784
VincentLunardiofLuscainTuscanyThefirstaerialtravellerinBritainMountingfromtheArtilleryGroundInLondonAndTraversingtheRegionsoftheAirForTwoHoursandFifteenMinutesInthisSpotRevisitedtheEarth。
OnthisrudemonumentForagesberecordedThatWondrousEnterpriseSuccessfullyatchievedBythePowersofChemistryAndtheFortitudeofManThatImprovementinScienceWhichTheGreatAuthorofallKnowledgePatronyzingbyHisProvidenceTheInventionofMankindHathgraciouslypermittedToTheirBenefitAndHisownEternalGlory。
CHAPTERIV。THEDEVELOPMENTOFBALLOONPHILOSOPHY。
Inlessthantwoyearsnotonlyhadthescienceofballooningreachedalmostitshighestdevelopment,buttheballoonitself,asanaerostaticmachine,hadbeenbroughttoastateofperfectionwhichhasbeenbutlittleimproveduponuptothepresentthour。Betterorcheapermethodsofinflationwereyettobediscovered,lighterandmoresuitablematerialremainedtobemanufactured;butthenavigationoftheair,whichhithertothroughalltimehadbeenbeyondman’sgrasp,hadbeenattained,asitwere,atabound,andatthehandsofmanydifferentandindependentexperimentalistswasbeingpursuedwithalmostthesamedegreeofsuccessandsafetyasto—day。
Norwasthisall。Therewasyetanothertriumphoftheaeronauticalartwhich,withinthesamebriefperiod,hadbeentoallintentsandpurposesachieved,evenifithadnotbeenbroughttothesamestateofperfectionasatthepresenthour。
ThiswastheParachute。Thisfactisonewhichforasufficientreasonisnotgenerallyknown。Itisverycommonlysupposedthattheparachute,inanythinglikeitspresentform,isaverymoderndevice,andthattheartofsuccessfullyusingithadnotbeenintroducedtotheworldevensolatelyasthirtyyearsago。Thus,wefinditstatedinworksofthatdatedealingwiththesubjectthatdisastrousconsequencesalmostnecessarilyattendedtheuseoftheparachute,"thedefectsofwhichhadbeenattemptedtoberemediedinvariousways,butuptothistimewithoutsuccess。"Amorecorrectstatement,however,wouldhavebeenthattheartofconstructingandusingapracticableparachutehadthroughmanyyearsbeenlostorforgotten。Inactualfact,ithadbeenadoptedwitheveryassuranceofcompletesuccessbytheyear1785,whenBlanchardbyitsmeanslowereddogsandotheranimalswithsafetyfromaballoon。AfewyearslaterhedescendedhimselfinalikeapparatusfromBasle,meeting,however,withthemisadventureofabrokenleg。
Butwemustgomuchfurtherbackfortheactualconceptionoftheparachute,which,wemightsuppose,mayoriginallyhavebeensuggestedbytheeasyfloatingmotionwithwhichcertainseedsorleaveswilldescendfromloftytrees,orbythemodeadoptedbybirdsofdroppingsoftlytoearthwithout—stretchedwings。M。delaLoubere,inhishistoricalaccountofSiam,whichhevisitedin1687—88,speaksofaningeniousathletewhoexceedinglydivertedtheKingandhiscourtbyleapingfromaheightandsupportinghimselfintheairbytwoumbrellas,thehandlesofwhichwereaffixedtohisgirdle。In1783,thatis,thesameyearasthatinwhichtheballoonwasinvented,M。leNormandexperimentedwithalikeumbrella—shapedcontrivance,withaviewtoitsadoptionasafireescape,andhedemonstratedthesoundnessoftheprinciplebydescendinghimselffromthewindowsofaloftyhouseatLyons。
Itwas,however,reservedforM。JacquesGarnerinin1797tomakethefirstparachutedescentthatattractedgeneralattention。GarnerinhadpreviouslybeendetainedasaStateprisonerinthefortressofBade,inHungary,afterthebattleofMarchiennesin1793,andduringhisconfinementhadponderedonthepossibilityofeffectinghisescapebyaparachute。Hissolitarycogitationsandcalculationsresulted,afterhisrelease,intheinventionandconstructionofanapparatuswhichheputtoapracticaltestatParisbeforethecourtofFranceonOctober22nd,1797。Ascendinginahydrogenballoontotheheightofabout2,000feet,heunhesitatinglycuthimselfadrift,whenforsomedistancehedroppedlikeastone。
Thefoldsofhisapparatus,however,openingsuddenly,hisfallbecameinstantlychecked。Theremainderofhisdescent,thoughleisurely,occupying,infact,sometwelveminutes,appearedtothespectatorstobeattendedwithuncertainty,owingtoaswingingmotionsetupinthecartowhichhewasclinging。
Butthefactremainsthathereachedtheearthwithonlyslightimpact,andentirelywithoutinjury。
ItappearsthatGarnerinsubsequentlymademanyequallysuccessfulparachutedescentsinFrance,andduringtheshortpeaceof1802visitedLondon,wherehegaveanexhibitionofhisart。Fromthemostreliableaccountsofhisexploititwouldseemthathisdropwasfromaverygreatheight,andthatastronggroundwindwasblowingatthetime,theresultofwhichwasthatwild,wideoscillationsweresetupinthecar,whichnarrowlyescapedbringinghimincontactwiththehousetopsinSt。Pancreas,andeventuallyswunghimdownintoafield,notwithoutsomeunpleasantscratches。
NorwasGarnerintheonlysuccessfulparachutistatthisperiod。APolishaeronaut,JordakiKuparento,ascendedfromWarsawonthe24thofJuly,1804inahotairballoon,takingup,aswasthecustom,anattachedfurnace,whichcausedtheballoontotakefirewhenatagreatheight。Kuparento,however,whowasalone,hadasaprecautionprovidedhimselfwithaparachute,andwiththisheseemstohavefoundnodifficultyineffectingasafedescenttoearth。
Itwasmanyyearsafterthisthatfreshexperimentalists,introducingparachutesonnewlinesandfaultyinconstruction,metwithdeathordisaster。Enough,however,hasalreadybeensaidtoshowthatintheearlyyearswearenowtraversinginthishistoryaperfectlypracticableparachutehadbecomeanaccomplishedfact。TheearlyformiswelldescribedbyMr。
MonckMasoninalettertotheMorningHeraldin1837,writtenontheeveofanunrehearsedandfatalexperimentmadebyMr。
Cocking,whichmustreceivenoticeinduecourse。"Theprinciple,"writesMr。MonckMason,"uponwhichalltheseparachuteswereconstructedisthesame,andconsistssimplyofaflatteneddomeofsilkorlinenfrom24feetto28feetindiameter。Fromtheoutermarginallaroundatstatedintervalsproceedalargenumberofcords,inlengthaboutthediameterofthedomeitself,which,beingcollectedtogetherinonepointandmadefasttoanotherofsuperiordimensionsattachedtotheapexofthemachine,servetomaintainitinitsformwhenexpandedintheprogressofthedescent。Tothiscentrecordlikewise,atadistancebelowthepointofjunction,varyingaccordingtothefancyoftheaeronaut,isfixedthecarorbasketinwhichheisseated,andthewholesuspendedfromthenetworkoftheballooninsuchamannerastobecapableofbeingdetachedinaninstantatthewilloftheindividualbycuttingtheropebywhichitismadefastabove。"
Itfollowedalmostasamatterofcoursethatsosoonastheballoonhadbeenmadesubjecttosomethinglikeduecontrol,andthushadbecomerecognisedasanewmachinefairlyreducedtotheserviceofman,itbegantoberegardedasaninstrumentwhichshouldbemadecapableofbeingdevotedtoscientificresearch。Indeed,itmaybeclaimedthat,amongtheveryearliestaeronauts,thosewhohadsailedawayintotheskiesandbroughtbackintelligentobservationsorimpressionsoftherealmofcloud—land,orwhohadonlydescribedtheirownsensationsatloftyaltitudes,hadalreadycontributedfactsofvaluetoscience。Itistimethen,takingeventsintheirduesequence,thatmentionshouldbemadeoftheendeavoursofvarioussavants,whobeganaboutthecommencementofthenineteenthcenturytogatherfreshknowledgefromtheexplorationoftheairbyballoonascentsorganisedwithfittingequipment。Thetimehadnowcomeforpromotingtheballoontohigherpurposesthanthoseofmereexhibitionoramusement。Inpointoffact,ithadalreadyinonewaybeenturnedtoseriouspracticalaccount。IthadbeenusedbytheFrenchduringmilitaryoperationsintherevolutionarywarasamodeofreconnoitring,andnotwithoutsuccess,sothatwhenafterduetrialthewarballoonwasjudgedofvalueanumberofsimilarballoonswereconstructedfortheuseofthevariousdivisionsoftheFrencharmy,and,aswillbetoldinitsproperplace,one,atleast,ofthesewasputtoapositivetestbeforethebattleofFleurus。
But,returningtomorestrictlyscientificascents,whichbegantobemootedatthisperiod,weareatonceimpressedwiththewidespreadinfluencewhichtheballoonwasexercisingonthinkingminds。Wenotethisfromthefactthatwhatmustbeclaimedtobethefirstgenuineascentforscientificobservationwasmadeinaltogetherfreshground,andatsodistantaspotasSt。Petersburg。
Itwasnowtheyear1804,andtheRussianAcademyhaddeterminedonattemptinganexaminationofthephysicalconditionofthehigheratmospherebymeansoftheballoon。
TheideahadprobablybeensuggestedbyscientificobservationswhichhadalreadybeenmadeonmountainheightsbysuchexplorersasDeLuc,Saussure,Humboldt,andothers。Andnowitwasdeterminedthattheirresultsshouldbetestedalongsidesuchobservationsascouldbegatheredinthefreeheavenfarremovedfromanydisturbingeffectsthatmightbecausedbycontiguitytoearth。Thelinesofenquirytowhichspecialattentionwasrequiredweresuchaswouldbenaturallysuggestedbythescientificknowledgeofthehour,thoughtheymayreadsomewhatquaintlyto—day。Wouldtherebeanychangeintheintensityofthemagneticforce?Anychangeintheinclinationofthemagnetisedneedle?Wouldevaporationfindanewlaw?Wouldsolarraysincreaseinpower?Whatamountofelectricmatterwouldbefound?Whatchangeinthecoloursproducedbytheprism?Whatwouldbetheconstitutionofthehigherandmoreattenuatedair?Whatphysicaleffectwouldithaveonhumanandbirdlife?
Theascentwasmadeat7。15onasummereveningbyM。RobertsonandtheAcademician,M。Sacharof,towhomweareindebtedforthefollowingresumeofnotes,whichhaveaspecialvalueasbeingthefirstoftheirclass。Risingslowly,adifferenceofatmosphereovertheNevagavetheballoonadownwardmotion,necessitatingthedischargeofballast。Aslateas8。45p。m。
afineviewwasobtainedoftheNewskiIslands,andthewholecourseoftheneighbouringriver。At9。20p。m。,whenthebarometerhadfallenfrom30inchesto23inches,acanaryandadoveweredismissed,theformerfallingprecipitately,whilethelattersaileddowntoavillagebelow。Allavailableballastwasnowthrownout,includingasparegreatcoatandtheremainsofsupper,withtheresultthatat9。30thebarometerhadfallento22inches,andatthisheighttheycaughtsightoftheupperrimofthesun。Theactionofheartandlungsremainednormal。Nostarswereseen,thoughtheskywasmainlyclear,suchcloudsaswerevisibleappearingwhiteandatagreatheight。Theechoofaspeakingtrumpetwasheardafteranintervaloftenseconds。Thiswassubstantiallytheoutcomeoftheexperiments。Thepracticaldifficultiesofcarryingoutprearrangedobservationsamidtheinconvenienceofballoontravelweremuchfelt。Theirinstrumentswereseriouslydamaged,andtheirresults,despitemostpainstakingandpraiseworthyefforts,mustberegardedassomewhatdisappointing。
Buteretheautumnofthesameyeartwootherscientificascents,admirablyschemedandfinancedatthepublicexpense,hadbeensuccessfullycarriedoutatParisinawarballoonwhich,aswillbetold,hadatthistimebeenreturnedfrommilitaryoperationsinEgypt。Inthefirstofthese,GayLussacascendedincompanywithM。Biot,withverycompleteequipment。Choosingteno’clockinthemorningfortheirhourofdeparture,theyquicklyenteredaregionofthin,butwetfog,afterwhichtheyshotupintodensercloud,whichtheycompletelysurmountedataheightof6,500feet,whentheydescribedtheuppersurfaceasbearingtheresemblance,familiarenoughtoaeronautsandmountaineers,asofawhiteseabrokenupintogentlyswellingbillows,orofanextendedplaincoveredwithsnow。
Aseriesofsimpleexperimentsnowembarkeduponshowedthebehaviourofmagnetisediron,asalsoofagalvanicpileorbattery,toremainunaltered。Astheiraltitudeincreasedtheirpulsesquickened,thoughbeyondfeelingkeenlythecontrastofacolderairandofscorchingraysofthesuntheyexperiencednophysicaldiscomfort。At11,000feetalinnetwhichtheyliberatedfelltotheearthalmosthelplessly,whileapigeonwithdifficultymaintainedanirregularandprecipitateflight。Acarefullycompiledrecordwasmadeofvariationsoftemperatureandhumidity,andtheysucceededindeterminingthattheupperairwaschargedwithnegativeelectricity。Inallthisthesetwoaccomplishedphysicistsmaybesaidtohavecarriedoutabrilliantachievement,eventhoughtheiractualresultsmayseemsomewhatmeagre。Theynotonlyweretheirownaeronauts,butsucceededinarrangingandcarryingoutcontinuousandsystematicobservationsthroughouttheperiodoftheirremaininginthesky。
Thisvoyagewasregardedassuchapronouncedsuccessthatthreeweekslater,inmid—September,GayLussacwasinducedtoascendagain,thistimealone,andundercircumstancesthatshouldenablehimtoreachanexceptionallyhighaltitude。
Experiencehadtaughttheadvisabilityofcertainmodificationsinhisequipment。Amagnetwasingeniouslyslungwithaviewoftestingitsoscillationeveninspiteofaccidentalgyrationsintheballoon。Thermometersandhygrometerswerecarefullyshelteredfromthedirectactionofthesun,andexhaustedflasksweresuppliedwiththeobjectofbringingdownsamplesofupperairforsubsequentanalysis。
Againitwasanearlymorningascent,withabarometeronthegroundstandingat30。6inches,andaslightlymistyair。
Lussacappearstohaveaccomplishedtheexceedinglydifficulttaskofcountingtheoscillationsofhismagnetwithsatisfactiontohimself。At10,000feettwentyvibrationsoccupied83seconds,ascomparedwith84。33secondsattheearth’ssurface。Thevariationofthecompassremainedunaltered,asalsothebehaviourofmagnetisedironatallaltitudes。Keepinghisballoonunderperfectcontrol,andmaintainingauniformandsteadyascent,heatthesametimesucceededincompilinganaccuratetableofreadingsrecordingatmosphericpressure,temperatureandhumidity,anditisinterestingtofindthathewasconfrontedwithanapparentanomalywhichwillcommonlypresentitselftotheaeronautobserver。Upto12,000feetthetemperaturehaddecreasedconsistentlyfrom82degreesto47degrees,afterwhichitincreased6degreesinthenext2,000feet。Thisbynomeansuncommonexperienceshallbepresentlydiscussed。Theballoonwasnowsteadilymanoeuvredupto18,636feet,atwhichheightfreezingpointwaspracticallyreached。Thenwithafurtherclimb20,000feetisrecorded,atwhichaltitudetheardentphilosophercouldstillattendtohismagneticobservations,norishisarduousandunassistedtaskabandonedhere,butwithmarvellouspertinacityheyetstruggledupwardstillaheightofnolessthan23,000feetisrecorded,andthethermometerhadsunkto14degreesF。Fourmilesandaquarterabovethelevelofthesea,reachedbyasolitaryaerialexplorer,whoselegitimatetraininglayapartfromaeronautics,andwhosemaincarewastheobservationofthephilosophicalinstrumentshecarried!TheachievementofthisFrenchsavantmakesabrilliantrecordintheearlypagesofourhistory。
ItisnotsurprisingthatLussacshouldowntohavingfeltnoinconsiderablepersonaldiscomfortbeforehisventurewasover。
Inspiteofwarmclothinghesufferedgreatlyfromcoldandbenumbedfingers,notlessalsofromlabouredbreathingandaquickenedpulse;headachesupervened,andhisthroatbecameparchedandunabletoswallowfood。Inspiteofall,heconductedthedescentwiththeutmostskill,climbingdownquietlyandgraduallytillhealightedwithgentleeaseatSt。
Gourgen,nearRouen。Itmaybementionedherethattheanalysisofthesamplesofairwhichhehadbroughtdownprovedthemtocontainthenormalproportionofoxygen,andtobeessentiallyidentical,astestedinthelaboratory,withthefreeairsecuredatthesurfaceoftheearth。
ThesuddenandapparentlyunaccountablevariationintemperaturerecordedbyLussacisastrikingrevelationtoanaerialobserver,andbecomesyetmoremarkedwhenmoresensitiveinstrumentsareusedthanthosewhichweretakenupontheoccasionjustrelated。Itwillberecordedinafuturechapterhowmoresuitableinstrumentscameincourseoftimetobedevised。Itisonlynecessarytopointoutatthisstagethatinstrumentswhichlackduesensibilitywillunavoidablyreadtoohighinascents,andtoolowindescentswhere,accordingtothegenerallaw,theairisfoundtogrowconstantlycolderwithelevationabovetheearth’ssurface。Itisstrongevidenceofconsiderableefficiencyintheinstruments,andofcarefulattentiononthepartoftheobserver,thatLussacwasabletorecordthetemporaryinversionofthelawofchangeoftemperatureabove—mentioned。
Hadhepossessedmoderninstrumentalequipmenthewouldhavebroughtdownayetmoreremarkableaccountoftheupperregionswhichhevisited,andlearnedthatthevariationsofheatandcoldwereconsiderablymorestrikingthanhesupposed。
Withaspeciallydevisedinstrumentusedwithspecialprecautions,thewriter,aswillbeshownhereafter,hasbeenabletoprovethatthetemperatureoftheair,astraversedinthewaywardcourseofaballoon,isprobablyfarmorevariableandcomplexthanhasbeenrecordedbymostobservers。
TheexceptionalheightclaimedtohavebeenreachedbyGayLassacneednotforamomentbequestioned,andthefactthathedidnotexperiencethesamepersonalinconvenienceashasbeencomplainedofbymountainclimbersatfarlessaltitudesadmitsofreadyexplanation。Thephysicalexertiondemandedofthemountaineerisentirelyabsentinthecaseofanaeronautwhoissailingatperfecteaseinafreeballoon。Moreover,itmustberememberedthat——amostimportantconsideration——theaerialvoyager,necessarilytravellingwiththewind,isunconscious,saveatexceptionalmoments,ofanybreezewhatever,anditisawell—establishedfactthatadegreeofcoldwhichmightbeinsupportablewhenabreezeisstirringmaybebutlittlefeltindeadcalm。Itshouldalsoberemembered,indulyregardingGayLussac’sremarkablerecord,thatthiswasnothisfirstexperienceofhighaltitudes,anditisanacknowledgedtruththatanaeronaut,especiallyifhebeanenthusiast,quicklybecomesacclimatisedtohisnewelement,andsufficientlyinuredtoitsoccasionalrigours。
CHAPTERV。SOMEFAMOUSEARLYVOYAGERS。
Duringcertainyearswhichnowfollowitwillpossiblybethoughtthatourhistory,sofarasincidentsofspecialinterestareconcerned,somewhatlanguishes。Yetitmaybewrongtoregardthisperiodasoneofstagnationorretrogression。
Beforepassingontolaterannals,however,wemustdulychroniclecertainexceptionalachievementsandendeavoursasyetunmentioned,whichstandoutprominentlyintheperiodwehavebeenregardingasalsointheadvancingyearsofthenewcenturyAmongthesemustinjusticebeincludedthosewhichcomeintotheremarkable,ifsomewhatpatheticsubsequentcareerofthebrilliant,intrepidLunardi。
Compellingeverywhereunboundedadmirationhereadilysecuredthemeansnecessaryforcarryingoutfurtherexploitswhereverhedesiredwhileatthesametimehemetwithameasureofgoodfortuneinfreedomfrommisadventuresuchashasgenerallybeendeniedtolessboldadventurers。Withinafewmonthsofthetimewhenwelefthim,thepopularheroandhappyrecipientofcivicandroyalfavours,wefindhiminScotlandattemptingfeatswhichaknowledgeofpracticaldifficultiesbidsusregardasextraordinary。
Tobeginwith,nothingappearsmoreremarkablethantheease,expedition,andcertaintywithwhichindayswhennecessaryfacilitiesmusthavebeenfarhardertocomebythannow,hecouldalwaysfillhisballoonbytheusuallytediousandtroublesomemodeattendinghydrogeninflation。WeseehimathisfirstScottishascent,completingtheoperationinlittlemorethantwohours。ItisthesamelateratGlasgow,where,commencingwithonlyaportionofhisapparatus,hefindstheinflationactuallytoproceedtoorapidlyforhispurpose,andhastoholdthepowersathiscommandstronglyincheck。
Later,inDecemberweather,havingstillfurtherimprovedhisapparatus,hemakeshisballoonsupportitselfaftertheinflationofonlytenminutes。Then,asifassuredofimpunity,hetreatsrecognisedriskswithaspeciesofcontempt。AtKelsohehailsalmostwithjoythefactthatthewindmustcarryhimrapidlytowardsthesea,whichintheendhenarrowlyescapes。AtGlasgowthechancesofsafelandingarestillmoreagainsthim,yethehasnohesitationinstarting,andatlastthecatastropheheseemedtocourtactuallyovertookhim,andheplumpedintotheseanearBerwick,wherenosailwaseveninsight,andawinter’snightcomingon。Fromthispredicamenthewasrescuedbyaspecialprovidencewhichoncebeforehadnotdesertedhim,wheninatumultofviolentandcontrarycurrents,andatagreatheighttoboot,hisgallerywasalmostcompletelycarriedaway,andhehadtoclingontothehoopdesperatelywithbothhands。
Thenwelosesightofthedauntless,light—heartedItalianforone—and—twentyyears,whenintheGentleman’sMagazineofJuly31,1806,appearsthebriefline,"DiedintheconventofBarbadinas,ofadecline,Mr。VincentLunardi,thecelebratedaeronaut。"
Garnerin,ofwhommentionhasalreadybeenmade,accomplishedinthesummerof1802twoaerialvoyagesmarkedbyextremevelocityintherateoftravel。ThefirstoftheseisalsoremarkableashavingbeenthefirsttofairlycrosstheheartofLondon。CaptainSnowdon,R。N。,accompaniedtheaeronaut。
TheascenttookplacefromChelseaGardens,andprovedsogreatanattractionthatthecrowdoverflowedintotheneighbouringpartsofthetown,chokingupthethoroughfareswithvehicles,andcoveringtheriverwithboats。Onbeingliberated,theballoonspedrapidlyaway,takingacoursemidwaybetweentheriverandthemainhighwayoftheStrand,FleetStreet,andCheapside,andsopassedfromviewofthemultitude。Suchadeparturecouldhardlyfailtoleadtosubsequentadventures,andthisispithilytoldinaletterwrittenbyGarnerinhimself:"Itaketheearliestopportunityofinformingyouthatafteraverypleasantjourney,butafterthemostdangerousdescentIevermade,onaccountoftheboisterousweatherandthevicinityofthesea,wealightedatthedistanceoffourmilesfromthisplaceandsixtyfromRanelagh。
Wewereonlythree—quartersofanhourontheway。To—nightI
intendtobeinLondonwiththeballoon,whichistorntopieces。Weourselvesarealloverbruises。"
OnlyaweekafterthesameaeronautascendedagainfromMarylebone,whenheattainedalmostthesamevelocity,reachingChingford,adistanceofseventeenmiles,infifteenminutes。
Thechiefdangerattendingaballoonjourneyinahighwind,supposingnoinjuryhasbeensustainedinfillingandlaunching,resultsnotsomuchfromimpactwiththegroundonalightingasfromthesubsequentalmostinevitabledraggingalongtheground。Thegrapnels,spurningtheopen,willoftenobtainnogripsaveinahedgeortree,andeventhenlargeboughswillbebrokenthroughordraggedaway,releasingtheballoononafreshcareerwhichmay,forawhile,increaseinmadimpetuosityastheemptyingsilkoffersadeeperhollowforthewindtocatch。
Theelementofriskisofanothernatureinthecaseofanightascent,whentheactualalightinggroundcannotbedulychosenorforeseen。Amongmanyrecordnightascentsmayhere,somewhatbyanticipationofevents,bementionedtwoembarkeduponbytheheroofourlastadventure。M。GarnerinwasengagedtomakeaspectacularascentfromTivoliatParis,leavingthegroundsatnightwithattachedlampsilluminatinghisballoon。Hisfirstessaywasonanightofear]yAugust,whenheascendedat11p。m。,reachingaheightofnearlythreemiles。Remainingaloftthroughthehoursofdarkness,hewitnessedthesunriseathalf—pasttwointhemorning,andeventuallycametoearthafterajourneyofsomesevenhours,duringwhichtimehehadcoveredconsiderablymorethanahundredmiles。Alikeboldadventurecarriedoutfromthesamegroundsthefollowingmonthwasattendedwithgraverperil。A
heavythunderstormappearingimminent,Garnerinelectedtoascendwithgreatrapidity,withtheresultthathisballoon,underthediminishedpressure,quicklybecamedistendedtoanalarmingdegree,andhewasreducedtothenecessityofpiercingaholeinthesilk,whileforsafety’ssakeheendeavouredtoextinguishalllampswithinreach。Henowlostallcontroloverhisballoon,whichbecameunmanageableintheconflictofthestorm。Havingexhaustedhisballast,hepresentlywasrudelybroughttoearthandthenborneagainstamountainside,finallylosingconsciousnessuntiltheballoonhadfoundanchoragethreehundredmilesawayfromParis。
Anightascent,whichreadsasyetmoresensationalandextraordinary,isreportedtohavebeenmadeayearortwopreviously,andwhenitisconsideredthattheballoonusedwasoftheMontgolfiertypetheaccountasitishandeddownwillbeallowedtobewithoutparallel。Itrunsthus:CountZambeccari,Dr。GrassatiofRome,andM。PascalAndreoliofAntonaascendedonaNovembernightfromBologna,allowingtheirballoontorisewithexcessivevelocity。InconsequenceofthisrapidtransitiontoanextremealtitudetheCountandtheDoctorbecameinsensible,leavingAndreolialoneinpossessionofhisfaculties。Attwoo’clockinthemorningtheyfoundthemselvesdescendingovertheAdriatic,atwhichtimealanternwhichtheycarriedexpiredandwaswithdifficultyre—lighted。Continuingtodescend,theypresentlypitchedintotheseaandbecamedrenchedwithsaltwater。Itmayseemsurprisingthattheballoon,whichcouldnotbepreventedfallinginthewater,isyetenabledtoascendfromthegripofthewavesbythemeredischargeofballast。(Itwouldbeinterestingtoinquirewhatmeanwhilehappenedtothefirewhichtheypresumablycarriedwiththem。)Theynowroseintoregionsofcloud,wheretheybecamecoveredwithhoarfrostandalsostonedeaf。At3a。m。theywereoffthecoastofIstria,oncemorebattlingwiththewavestillpickedupbyashoreboat。Theballoon,relievedoftheirweight,thenflewawayintoTurkey。
Howeveroverdrawnthisnarrativemayappear,itmustbereadinthelightofanotheraccount,thebare,hardfactsofwhichcanadmitofnoquestion。Itisfiveyearslater,andonceagainCountZambeccariisascendingfromBologna,thistimeincompanywithSignorBonagna。AgainitisaMontgolfierorfireballoon,andonnearingearthitbecomesentangledinatreeandcatchesfire。Theaeronautsjumpfortheirlives,andtheCountiskilledonthespot。Certainly,wheneveryallowanceismadeforpardonableorunintentionalexaggeration,itmustbeconcededthatthereweregiantsinthosedays。Giantsintheconceptionandaccomplishmentofdeedsofloftydaring。
Menwhocamescathlessthroughsupremedangerbyvirtueofthecalmnessandcouragewithwhichtheywithstoodit。
Amongotherappallingdisasterswehaveanexampleofaterrificdescentfromavastheightinwhichtheadventurersyetescapewiththeirlives。Itwasthesummerof1808,andtheaeronauts,MM。AndreoliandBrioschi,ascendingfromPadua,reachaheightatwhichabarometersinkstoeightinches,indicatingupwardsof30,000feet。Atthispointtheballoonbursts,andfallsprecipitatelynearPetrarch’stomb。
Commentingonthis,Mr。Glaisher,thevalueofwhoseopinionissecondtonone,isnotdisposedtoquestionthegeneraltruthofthenarrative。InregardtoZambeccari’sescapefromthesearelatedabove,itshouldbestatedthatinthecaseofagas—inflatedballoonwhichhasnomorethandippeditscarorgalleryinthewaves,itisgenerallyperfectlypossibletoraiseitagainfromthewater,providedthereisonboardastoreofballast,thedischargeofwhichwillsufficientlylightentheballoon。AcaseinpointoccurredinamostromanticandperilousvoyageaccomplishedbyMr。Sadleronthe1stofOctober,1812。
Hisadventureisoneofextraordinaryinterest,andofnolittlevaluetothepracticalaeronaut。ThefollowingaccountiscondensedfromMr。Sadler’sownnarrative。HestartedfromthegroundsofBelvedereHouse,Dublin,withtheexpressedintentionofendeavouringtocrossovertheIrishChanneltoLiverpool。Thereappeartohavebeentwoprincipalairdrifts,anupperandalower,bymeansofwhichheentertainedfairhopesofsteeringhisdesiredcourse。Butfromtheoutsethewasmenacedwithdangersanddifficulties。Erehehadleftthelandhediscoveredarentinhissilkwhich,occasionedbysomeaccidentbeforeleaving,showedsignsofextending。