To one or another of these species every human being may safely be referred. I think it beyond a peradventure that Jonah prosecuted some inquiries into the digestive apparatus of whales, and that Noah sealed up a letter in an empty bottle, that news in regard to him might not be wanting in case of the worst. They had else been super or subter human. I conceive, also, that, as there are certain persons who continually peep and pry at the keyhole of that mysterious door through which, sooner or later, we all make our exits, so there are doubtless ghosts fidgetting and fretting on the other side of it, because they have no means of conveying back to this world the scraps of news they have picked up in that. For there is an answer ready somewhere to every question, the great law of _give and take_ runs through all nature, and if we see a hook, we may be sure that an eye is waiting for it. I read in every face I meet a standing advertisement of information wanted in regard to A. B., or that the friends of C. D. can hear something to his disadvantage by application to such a one. It was to gratify the two great passions of asking and answering that epistolary correspondence was first invented. Letters (for by this usurped title epistles are now commonly known) are of several kinds. First, there are those which are not letters at all,--as letters-patent, letters dismissory, letters enclosing bills, letters of administration, Pliny's letters, letters of diplomacy, of Cato, of Mentor, of Lords Lyttleton, Chesterfield, and Orrery, of Jacob Behmen, Seneca (whom St. Jerome includes in his list of sacred writers), letters from abroad, from sons in college to their fathers, letters of marque, and letters generally, which are in nowise letters of mark. Second, are real letters, such as those of Gray, Cowper, Walpole, Howel, Lamb, D. Y., the first letters from children, (printed in staggering capitals,) Letters from New York, letters of credit, and others, interesting for the sake of the writer or the thing written. I have read also letters from Europe by a gentleman named Pinto, containing some curious gossip, and which I hope to see collected for the benefit of the curious. There are, besides, letters addressed to posterity,--as epitaphs, for example, written for their own monuments by monarchs, whereby we have lately become possessed of the names of several great conquerors and kings of kings, hitherto unheard of and still unpronounceable, but valuable to the student of the entirely dark ages. The letter which St. Peter sent to King Pepin in the year of grace 755, that of the Virgin to the magistrates of Messina, that of St. Gregory Thaumaturgus to the D--l, and that of