A form of prayer and thanksgiving to Almighty God : To be used at morning and evening service, after the general thanksgiving, throughout the cities of London and Westminster, and elsewhere within the bills of mortality, on Sunday the thirty-first day of January, 1773; and in all churches and chapels throughout England and Wales, on the Sunday after the ministers thereof receive the same; on the safe delivery of the Queen, and happy birth of a Prince. By His Majesty's special command.