A form of prayer to be used in all churches and chapels throughout that part of Great Britain called England, the dominion of Wales, and town of Berwick upon Tweed, upon Friday the 14th of this inst. of March, 1760, being the day appointed by proclamation for a general fast, and humiliation before Almighty God, to be observ'd in most devout and solemn manner, by sending up our prayers and supplications to the Divine Majesty