In commencing a brief final notice of "The Viceroy and the Aristocracy," we regret much to inform our readers that it is, in a manner, a story without an end. One of the most striking peculiarities of this anonymous author, consists in his singular and unaccountable habit of leaving every thing unfinished. Despising the rule generally observed by romance writers, of bringing their works to some sort of climax or _denouement_, he in no one instance takes the trouble to dispose satisfactorily of his characters; but, after strongly interesting the reader in their fate, abandons them in the middle of their career, as if he intended, some day or other, to complete their history in another volume. The inventive and descriptive powers displayed in his writings, render it impossible to attribute this peculiarity to lack of ability. A chapter or two would frequently be sufficient to terminate every thing in one way or the other; but these chapters, owing to some whim of the author, are denied us. Manifold are the eccentricities of genius, and our unknown friend has evidently no small share of them. We are compelled, therefore, to look upon his books less as regular novels, than as a series of sketches, scenes, and adventures, with slight connecting links; and resembling, by their vivid colouring, and graphic and characteristic details, some admirably painted and gorgeous panorama, of which the materials exhibit infinite variety and the most striking contrasts. We cannot hope, in our translation, to do full justice to so able an original; and the less so as, in the extracts given, we are compelled to take considerable liberties in the way of abridgement. We are, nevertheless, desirous of following the fortunes of Don Manuel as far as the author acquaints us with them; previously to which, however, we will lay before our readers one or two fragments, having little connexion with the plot of the book, but highly illustrative of the singular state of Mexican society and manners at the period referred to. We commence with a striking sketch of the Leperos, as they appeared when assembled outside the city of Mexico, awaiting the arrival of Vicente Guerero and the patriot army. * * * * * The morning of the ninth of February 1812, had scarcely dawned, when the entire multitude of those wretched beings, known by the name of Leperos, left the city of Mexico, and advanced along the Ajotla road as far as the chain of volcanic hills already alluded to.