GROOMSPORT, Co. DOWN.—The barque Margaret, of Belfast, was endeavouring to enter that port during a very strong gale from the N.N.W. and a very heavy sea at about 12.30P.M. on the 14th October. She was taken in tow by a steam-tug, but the hawser broke, and the vessel was run into Bangor Bay, where she struck on the sand. The Florence Life-boat, stationed at Groomsport, was taken by land to Bangor, where she was launched, and proceeded to the vessel and succeeded in bringing safely ashore the crew of fifteen men. The barque was bound from Quebec to Belfast with a cargo of timber..