In March 1813 was published for Carpenter (through an understrapper in the Row) _Intercepted Letters; or the Twopenny Postbag_. The preface explained that the letters in question came from a bag dropped by a Twopenny Postman, which had been picked up by an agent of the Society for the Suppression of Vice, but abandoned, when it became clear that the discoveries of profligacy which it indicated lay too high up to be handled. The letters--eight in all--were attributed to correspondents whose names were transparently disguised by initials, and who for the most part belonged to the Prince Regent's circle. A supplementary group of epigrams and occasional verses, reprinted from the _Morning Chronicle_, eked out the thin volume. Thin as it was, it sold for a high price, and it sold prodigiously; a year later Moore wrote a preface for the fourteenth edition, which Carpenter now openly adopted. Moore, however, did not write in his own name. The nominal author of the preface, as of the book, was "Thomas Brown the younger." But the authorship was never for a moment in doubt, as many of the squibs reprinted had been correctly assigned on their first appearance in the _Chronicle_; and Moore showed his certitude that the disguise would be only formal by inserting, in the dedication to Woolriche, an assurance that "doggerel is not my _only_ occupation." The preface to the later edition contains some biographical matter of interest. It begins by denying the rumour of collaboration or joint-authorship; and then passes to what was a virtual avowal of identity. "To the charge of being an Irishman, poor Mr. Brown pleads guilty; and I believe it must also be acknowledged that he comes of a Roman Catholic family.... But from all this it does not necessarily follow that Mr. Brown is a Papist; and indeed I have the strongest reasons for suspecting that they who say so are somewhat mistaken.... All I profess to know of his orthodoxy is that he has a Protestant wife and two or three little Protestant children, and that he has been seen at church every Sunday, for a whole year together, listening to the sermons of his truly reverend and amiable friend, Dr. ----"[1] Moore by no means conceived of tolerance only as a virtue to be practised by Protestants for the benefit of Catholics. Long before his marriage--indeed, when his Bessy was in very short frocks--he had written, as an exhortation to Protestants:-- "From the heretic girl of my soul shall I fly To find somewhere else a more orthodox kiss?"