again carefully and resealed. When the letters have been stamped, and those insufficiently paid picked out, they are carried away to undergo the process of sorting. In this operation they are very rapidly divided into "roads," representing a line of large towns: thus, letters for Derby, Loughborough, Nottingham, Lincoln, &c. might be placed in companionship in one division or "road," and Bilston, Wednesbury, Walsall, West Bromwich, &c. in another. When this primary divisional sorting is finished, the letters are divided and subdivided over and over again, with the exception of those for the various travelling sorting-carriages upon the different lines of railway, which remain in divisions corresponding with various portions of the country through which the several mail-trains run. It is into one of these divisions that our own letter falls, to be seen again, however, when we come to describe the Travelling Post-Offices. During the time occupied in making up the mails, the Circulation Branch of the General Post-Office presents a busy scene, yet retains the utmost order and regularity. Hundreds of men are engaged in the various operations of sorting and sub-sorting, yet all proceeds really noiselessly, and as if the hundreds and thousands of letters representing the commerce and intelligence of the English people could not be treated too carefully. Every now and again the sorter pauses in his rapid movements, and places a letter on one side. In some cases this signifies that he has detected a letter containing a _coin_ of some sort; and when such letters have been posted without being registered by the sender, the Department takes this duty upon itself, charging a double fee on delivery. The number of letters of this class detected in London alone during the first six months after the plan was brought into operation, was upwards of 58,000. Letters which cannot be read, or letters imperfectly addressed, are also thrown on one side and conveyed to another part of the Circulation Branch, where gentlemen whose extraordinary faculty of discernment have gained them the singularly inappropriate name of "blind officers" sit in state. THE BLIND LETTER-OFFICE