Yesterday a notice was issued from the Post-office, stating that
" on mid from the 20th of June 1839," letters would be forwarded by 'morning mails to Ireland, Scotland, and the North. The letter-boxes at the receiving-houses will be open till seven A.M. for liewspapera, amid eight a.m. for letters; and those at the branch offices, Charing Cross, Old Cavendish Street, and the Borough, for the reception of newspapers until half-past seven A.M., and for letters until eight A.M. At the General Post-office anil at the branch office in Lombard Street, the boxes will close for newspapers at a quarter before eight A.M., and for letters at half-past eight a.m. Mails despatched. at nine A.M. " For Brighton and Windsor, the letter-boxes at the receiving-houses will be open till seven a.m. for newspapers, and eight A.M. for letters; and those at the branch-offices, Charing Cross, Old Cavendish Street, and the Borough, for the reception of newspapers until half-past eight a.m., and for letters until nine The boxes at the General Post-office anti at the Lombard Street branch-office will close for newspapers at nine A.m., and for letters at a quarter before ten A.M. Mails despatched at half-past ten A.M."