KILLOUGH (otherwise PORT ST ARNE), a port town of Ireland, situated in the county of Down and province of Ulster, 76 miles from Dublin. It lies north of St John's Point, and has a good quay, where ships lie very safe. The town is agreeably situated; the sea flowing all along the backs of the houses, where ships ride in full view of the inhabitants. There is here a good church, and a horse barrack. They have good fishing in the bay; but the principal trade of the place consists in the exportation of barley, and the importation of such commodities as are consumed in the adjacent country. A manufacture of salt is also carried on with great advantage. The fairs held here are five. At a small distance from the town is a charter working school for the reception of 20 children, which was set on foot by the late Mr Justice Ward. There is a remarkable well here called St Scordin's well, and highly esteemed for the extraordinary lightness of its water. It gushes out of a high rocky bank, close upon the shore, and is observed never to diminish its quantity in the driest season. There is also a mineral spring near the school, the waters of which the inhabitants affirm to be both purgative and emetic. At a small distance from the town near the sea is a rock in which there is an oblong hole, from whence at the ebbing and flowing of the tide a strange noise is heard somewhat resembling the sound of a huntsman's horn. In an open field about a quarter of a mile from the town towards St John's point there is a very curious cave, which has a winding passage two feet and a half broad, with three doors in it besides the entrance, and leading to a circular chamber three yards in diameter, where there is a fine limpid well. The cave is about 27 yards long.
KILLOUGH