Убийство на улице Морг

           Now,broughttothisconclusioninsounequivocalamannerasweare,itisnotourpart,asreasoners,torejectitonaccountofapparentimpossibilities.Itisonlyleftforustoprovethattheseapparent‘impossibilities’are,inreality,notsuch. 

           “Therearetwowindowsinthechamber.Oneofthemisunobstructedbyfurniture,andiswhollyvisible.Thelowerportionoftheotherishiddenfromviewbytheheadoftheunwieldybedsteadwhichisthrustcloseupagainstit.Theformerwasfoundsecurelyfastenedfromwithin.Itresistedtheutmostforceofthosewhoendeavoredtoraiseit.Alargegimlet-holehadbeenpiercedinitsframetotheleft,andaverystoutnailwasfoundfittedtherein,nearlytothehead.Uponexaminingtheotherwindow,asimilarnailwasseensimilarlyfittedinit;andavigorousattempttoraisethissash,failedalso.Thepolicewerenowentirelysatisfiedthategresshadnotbeeninthesedirections.And,therefore,itwasthoughtamatterofsupererogationtowithdrawthenailsandopenthewindows. 

           “Myownexaminationwassomewhatmoreparticular,andwassoforthereasonIhavejustgiven—becausehereitwas,Iknew,thatallapparentimpossibilitiesmustbeprovedtobenotsuchinreality. 

           “Iproceededtothinkthus—aposteriori.Themurderersdidescapefromoneofthesewindows.