At no provincial town in England or Ireland is there more than one delivery on Sunday or the sacramental fast-days; and any person is at liberty to prevent even this delivery, so far as relates to himself, as shown by the following regulations:— “1st. Any person can have his letters, &c. retained in the post-office on Sunday, by addressing to the postmaster a written request, duly signed, to that effect; and such request will be held to include newspapers and all other postal matters, even such as may be marked ‘immediate,’ as no distinction is allowed. “2d. No letters, &c. the non-delivery of which by the letter-carrier on Sunday has been directed can be obtained from the post-office window on that day. “3d. Private box-holders have the option of applying for letters at the office while it is open for delivery on Sunday, or of abstaining from so doing, as they may think proper; but no person can be permitted to engage a private box for Sunday only.” _DEAD-LETTERS._ “And thus there were many dead.”—GOWER. It would fill a volume were we to attempt any thing like a history of this department of the general post-office. One thing, however, would impress itself forcibly upon the minds of our readers, were we to furnish such a history, and that would be to establish the fact beyond the possibility of a doubt that “the fools are not all dead yet.” As far as the employees of the post-office are concerned, if not irreverent, this would be a “consummation devoutly to be wished.” Many of these letters, containing important information and large amounts of money, are so villanously directed that a modern mesmeriser would find himself at fault, or a spiritual medium confounded, if put in connection with the writers, in their endeavor to arrive at the mystery of such superscriptions as it has been our misfortune to encounter during our connection with the post-office. In another portion of this work we furnish the reader with numerous specimens of such directions. Would we could give specimens of their chirography also! In connection, however, with “dead-letters,” we annex the following superscriptions to letters which contained money and drafts, and of course found their way to the “dead-letter office:”— MISS JEANNIE WUTEREZ, Bile. 677 Auen N.J. 34 S.A. Is it likely that such a direction would carry a letter to Miss Jeannie? or the following to its direction?— MISS S. SORERIE, beckie if Hossee if H. grltne et persep Yell oone hundder 45 Neither town nor State, it will be perceived, is here given. We furnish another:— TO GENITZ DENGKENSON Ap. Risen. Coolkill Kounty, near Genezene.