Than the gentleman above named, there is nobody, in the whole circle of my acquaintance, whom I have more attentively studied, yet of whom I have less real knowledge, beneath the surface which it pleases him to present. Being anxious to discover who and what he really is, and how connected with me, and what are to be the results to him and to myself of the joint interest which, without any choice on my part, seems to be permanently established between us, and incited, furthermore, by the propensities of a student of human nature, though doubtful whether Monsieur du Miroir have aught of humanity but the figure, -I have determined to place a few of his remarkable points before the public, hoping to be favored with some clew to the explanation of his character. Nor let the reader condemn any part of the narrative as frivolous, since a subject of such grave reflection diffuses its importance through the minutest particulars; and there is no judging beforehand what odd little circumstance may do the office of a blind man's dog among the perplexities of this dark investigation; and however extraordinary, marvellous, preternatural, and utterly incredible some of the meditated disclosures may appear, I pledge my honor to maintain as sacred a regard to fact as if my testimony were given on oath and involved the dearest interests of the personage in question. Not that there is matter for a criminal accusation against Monsieur du Miroir, nor am I the man to bring it forward if there were. The chief that I complain of is his impenetrable mystery, which is no better than nonsense if it conceal anything good, and much worse in the contrary case.But, if undue partialities could be supposed to influence me, Monsieur du Miroir might hope to profit rather than to suffer by them, for in the whole of our long intercourse we have seldom had the slightest disagreement; and, moreover, there are reasons for supposing him a near relative of mine, and consequently entitled to the best word that I can give him. He bears indisputably a strong personal resemblance to myself, and generally puts on mourning at the funerals of the family. On the other hand, his name would indicate a French descent; in which case, infinitely preferring that my blood should flow from a bold British and pure Puritan source, I beg leave to disclaim all kindred with Monsieur du Miroir. Some genealogists trace his origin to Spain, and dub him a knight of the order of the CABALLEROS DE LOS ESPEJOZ, one of whom was overthrown by Don Quixote. But what says Monsieur du Miroir himself of his paternity and his fatherland? Not a word did he ever say about the matter; and herein, perhaps, lies one of his most especial reasons for maintaining such a vexatious mystery, that he lacks the faculty of speech to expound it. His lips are sometimes seen to move; his eyes and countenance are alive with shifting expression, as if corresponding by visible hieroglyphics to his modulated breath; and anon he will seem to pause with as satisfied an air as if he had been talking excellent sense. Good sense or bad, Monsieur du Miroir is the sole judge of his own conversational powers, never having whispered so much as a syllable that reached the ears of any other auditor. Is he really dumb? or is all the world deaf? or is it merely a piece of my friend's waggery, meant for nothing but to make fools of us? If so, he has the joke all to himself