Itsheighttotheroofwastwelvefeet。Carefullylaidoutintheinside，andlittleencumberedbyinstrumentsandtravelingutensils，whicheachhadtheirparticularplace，itleftthethreetravelersacertainfreedomofmovement。Thethickwindowinsertedinthebottomcouldbearanyamountofweight，andBarbicaneandhiscompanionswalkeduponitasifitweresolidplank；butthesunstrikingitdirectlywithitsrayslittheinterioroftheprojectilefrombeneath，thusproducingsingulareffectsoflight。
Theybeganbyinvestigatingthestateoftheirstoreofwaterandprovisions，neitherofwhichhadsuffered，thankstothecaretakentodeadentheshock。Theirprovisionswereabundant，andplentifulenoughtolastthethreetravelersformorethanayear。Barbicanewishedtobecautious，incasetheprojectileshouldlandonapartofthemoonwhichwasutterlybarren。
Astowaterandthereserveofbrandy，whichconsistedoffiftygallons，therewasonlyenoughfortwomonths；butaccordingtothelastobservationsofastronomers，themoonhadalow，dense，andthickatmosphere，atleastinthedeepvalleys，andtherespringsandstreamscouldnotfail。Thus，duringtheirpassage，andforthefirstyearoftheirsettlementonthelunarcontinent，theseadventurousexplorerswouldsufferneitherhungernorthirst。
Nowabouttheairintheprojectile。There，too，theyweresecure。
ReisetandRegnaut\'sapparatus，intendedfortheproductionofoxygen，wassuppliedwithchlorateofpotassiumfortwomonths。