Philadelphia, October 30.
Yesterday arrived here the prize brig ---- [Polly], Captain Jenkins, late commander. She sailed from Barbados the first of this month, bound for Liverpool, and was taken on the 12th by the Hancock privateer, Captain Newman, of this port.
Last Sunday morning, about one o'clock, a fire was discovered on board the prize ship lying in this harbour, (lately taken by the Continental schooner Wasp) which entirely consumed the same, together with her valuable cargo of sugar, rum &c.