The Unparalleled Adventure of One Hans Pfaall There is, strictly speaking, but little similarity between this sketchy trifle and the very celebrated and very beautiful “Moon-story” of Mr. Locke — but as both have the character of hoaxes, (although one is in the tone of banter, the other of downright earnest) and as both hoaxes are on the same subject, the moon — the author of “Hans Pfaall” thinks it necessary to say, in self-defence, that his own jeu-d’esprit was published, in the Southern Literary Messenger, about three weeks previously to the appearance of Mr. L’s in the New York “Sun.” Fancying a similarity which does not really exist, some of the New York papers copied “Hans Pfaall,” and collated it with the Hoax — with the view of detecting the writer of the one in the writer of the other. By late accounts from Rotterdam, that city seems to be in a high state of philosophical excitement. Indeed, phenomena have there occurred of a nature so completely unexpected — so entirely ...