CHAIN Island, an island lately discovered by Captain Wallis in the South sea. It seemed to be about five miles long and as much broad, lying in the direction of north-west and south-east. It appeared to be a double range of woody islands joined together by reefs, so as to compose one island of an oval figure, with a lake in the middle. The trees are large, and from the smoke that issued from the woods, it appeared to be inhabited. W. Long. 145° 54'. S. Lat. 17° 23'.