In one aspect the process of sortation bears some resemblance to digestion. This is observed in connection with the strange courses which letters run if, by a first misreading of the address, they happen to get out of their proper line or direction. A day seldom passes but some letter addressed to Edenbridge in Kent reaches the city of Edinburgh, either from London or some other English town. There is, of course, a strong resemblance between the names of the two places as written, yet the missent letters must have passed through the hands of two or three sorters before reaching Edinburgh. But though this might seem to suggest carelessness, there is this to be said, that whenever a letter for Edenbridge gets out of its own course, and into the stream of letters for Edinburgh, the sorters have a predisposition to assimilate it as an Edinburgh letter, and so it gets forwarded to that city. The same thing applies in regard to letters for Leek, Leith, and Keith, and for Musselburgh and Middlesborough--especially when, as is too often the case, the writing is not good; and many other similar instances might be given. Letters for Fiji frequently reach Edinburgh from London and the South, being missent as for Fife in Scotland; and we have it on the authority of the Colonial Postmaster of Fiji, that numbers of letters, papers, &c., directed to Fife, reach the Fiji Islands. Two letters posted at Hamilton, Bermuda, and addressed to Edinburgh, Saratoga Co., N.Y., were recently observed to perform a curious circuit before reaching their destination. Instead of being sent direct to the United States from Bermuda, they were forwarded to London in England; and here, getting into the current of inland correspondence, they were sent to Edinburgh in Scotland. At this stage their wild career was stopped, and they were put in proper course to recross the Atlantic. It is near the truth to say, that similarity of names and bad writing are the causes of very many of the irregularities which befall letters in their transit through the post. CHAPTER XII. PIGEON-POST.