The most curiously-characteristic letters now made public property are those of Sir Walter Raleigh to Queen Elizabeth, written from the Tower (to which the historian of the world was committed for wedding without her majesty's permission), and in the highest tone of desperation that a banished lover could assume; the correspondence between Frederick of Prussia and Voltaire, then of France, after what was called their reconciliation, beginning with the grandest compliments, and ending with reminiscences of quite another kind, particularly that from the royal pen, which opens with, "You, who from the heights of philosophy look down on the weakness and follies of mankind," and concludes with the charge of appropriating candle-ends; and the epistles of Rousseau during his residence in England, which alternate between discoveries of black conspiracies against his life and fame, and threats of adjournment to the workhouse, if his friends would not assist him to live in a better style than most country gentlemen of the period. There are printed samples with whose writers fame has been busy; but who can say what curiosities of letter-writing daily mingle with the mass that pours through the London Post-Office? Can it be this continual custody and superintendence of so large a share of their fellow-creatures' wisdom, fortunes, and folly, that endows post-office functionaries in every quarter with such an amount of proverbial crustiness, if the word be admissible? Do they, from the nature of their business, know too much about the public to think them worth civility, so that nobody has yet discovered a very polite postmaster or man? A strange life the latter leads in our great cities. The truest representative of destiny seems his scarlet coat, seen far through street and lane: at one door he leaves the news of failure and ruin, and at another the intelligence of a legacy. Here his message is the death of a friend, while to the next neighbor he brings tidings of one long absent, or the increase of kindred; but without care or knowledge of their import, he leaves his letters at house after house, and goes his way like a servant of time and fortune, as he is, to return again, it may be, with far different news, as their tireless wheels move on. Are there any that have never watched for his coming? The dwellers in palaces and garrets, large families, and solitary lodgers, alike look out for him with anxious hope or fear. Strange it is for one to read over those letters so watched and waited for, when years have passed over since their date, and the days of the business, the friendship, or perhaps the wooing, to which they belong are numbered and finished!