“The first aim of the writer is to show, from the brevity of the interval between Marie’s disappearance and the finding of the floating corpse, that this corpse cannot be that of Marie.  The reduction of this interval to its smallest possible dimension, becomes thus, at once, an object with the reasoner.  In the rash pursuit of this object, he rushes into mere assumption at the outset.  ‘It is folly to suppose,’ he says, ’that the murder, if murder was committed on her body, could have been consummated soon enough to have enabled her murderers to throw the body into the river before midnight.’  We demand at once, and very naturally, why?  Why is it folly to suppose that the murder was committed within five minutes after the girl’s quitting her mother’s house?  Why is it folly to suppose that the murder was committed at any given period of the day?  There have been assassinations at all hours.  But, had the murder taken place at any moment between nine o’clock in the morning of Sunday, and a quarter before midnight, there would still have been time enough ‘to throw the body into the river before midnight.’  This assumption, then, amounts precisely to this — that the murder was not committed on Sunday at all — and, if we allow L’Etoile to assume this, we may permit it any liberties whatever.  The paragraph beginning ‘It is folly to suppose that the murder, etc.,’ however it appears as printed in L’Etoile, may be imagined to have existed actually thus in the brain of its inditer — ’It is folly to suppose that the murder, if murder was committed on the body, could have been committed soon enough to have enabled her murderers to throw the body into the river before midnight; it is folly, we say, to suppose all this, and to suppose at the same time, (as we are resolved to suppose,) that the body was not thrown in until after midnight’ —­ a sentence sufficiently inconsequential in itself, but not so utterly preposterous as the one printed.

“Were it my purpose,” continued Dupin, “merely to make out a case against this passage of L’Etoile’s argument, I might safely leave it where it is.  It is not, however, with L’Etoile that we have to do, but with the truth.  The sentence in question has but one meaning, as it stands; and this meaning I have fairly stated:  but it is material that we go behind the mere words, for an idea which these words have obviously intended, and failed to convey.  It was the design of the journalist to say that, at whatever period of the day or night of Sunday this murder was committed, it was improbable that the assassins would have ventured to bear the corpse to the river before midnight.  And herein lies, really, the assumption of which I complain.  It is assumed that the murder was committed at such a position, and under such circumstances, that the bearing it to the river became necessary.  Now, the assassination might have taken place upon the river’s brink, or on the river itself; and, thus, the throwing the corpse in the water might have