Wheras His Majesty taking notice of the daily infringement of the act of Parliament (for establishing a letter-office) by common carryers of goods &c. was pleased to issue forth his proclamation to inforce the execution of the said act : amongst other things injoynd the post-master-general to settle fit correspondencies between the most considerable market-towns and the respective post-stages in England and Wales for conveyance of letters in post, to supply the pretended convenience by such common carryers, the same is now accordingly done ...