Haditbeenpossibletoadducefiftyinsteadoffiveexamplesofbodiesfoundfloatingattheendoftwoorthreedays,thesefiftyexamplescouldstillhavebeenproperlyregardedonlyasexceptionstoL’Etoile’srule,untilsuchtimeastheruleitselfshouldbeconfuted。Admittingtherule,andthisLeMoniteurdoesnotdeny,insistingmerelyuponitsexceptions,theargumentofL’Etoileissufferedtoremaininfullforce;forthisargumentdoesnotpretendtoinvolvemorethanaquestionoftheprobabilityofthebodyhavingrisentothesurfaceinlessthanthreedays;andthisprobabilitywillbeinfavorofL’Etoile’spositionuntiltheinstancessochildishlyadducedshallbesufficientinnumbertoestablishanantagonisticalrule。
“Youwillseeatoncethatallargumentuponthisheadshouldbeurged,ifatall,againsttheruleitself;andforthisendwemustexaminetherationaleoftherule。Nowthehumanbody,ingeneral,isneithermuchlighternormuchheavierthanthewateroftheSeine;
thatistosay,thespecificgravityofthehumanbody,initsnaturalcondition,isaboutequaltothebulkoffreshwaterwhichitdisplaces。Thebodiesoffatandfleshypersons,withsmallbones,andofwomengenerally,arelighterthanthoseoftheleanandlarge-boned,andofmen;andthespecificgravityofthewaterofariverissomewhatinfluencedbythepresenceofthetidefromsea。
But,leavingthistideoutofquestion,itmaybesaidthatveryfewhumanbodieswillsinkatall,eveninfreshwater,oftheirownaccord。Almostanyone,fallingintoariver,willbeenabledtofloat,ifhesufferthespecificgravityofthewaterfairlytobeadducedincomparisonwithhisown-thatistosay,ifhesufferhiswholepersontobeimmersed,withaslittleexceptionaspossible。
Theproperpositionforonewhocannotswim,istheuprightpositionofthewalkeronland,withtheheadthrownfullyback,andimmersed;