Auchenlech, white nearly three-quarters of a mile above Port Glasgow-the 2nd a floating light, called the Garmoyle, white 23 miles farther up-3rd Dickies Light, white about a mile above Dumbarton. Left on starboard-hand going up river.

IRELAND, SOUTH, EAST, NORTH AND WEST COASTS.

Note. When a vessel is observed from any of the Irish Light-vessels standing into danger, a gun will be fired, and repeated until observed by the vessel. The two signal flags, J,D, of the Commercial Code, " You are standing into danger," will be hoisted and kept flying until

answered.