Chapter 20

The Percy Isles: anchorage at No. 2. Boat excursions. Remarks on the Percy Isles; with nautical observations. Coral reefs: courses amongst them during eleven days search for a passage through, to sea. Description of a reef. Anchorage at an eastern Cumberland Isle. The Lady Nelson sent back to Port Jackson. Continuation of coral reefs; and courses amongst them during three other days. Cape Gloucester. An opening discovered, and the reefs quitted. General remarks on the Great Barrier; with some instruction relative to the opening.