Leave Port Essington. Clarence Strait. Hope Inlet. Shoal Bay. Land for Observations. Explore a new Opening. Talc Head. Port Darwin. Continue Exploration. Mosquitoes and Sandflies. Nature of the Country. Its parched appearance. Large ant's nest. Return to Shoal Bay. Visit from the Natives. Remarks. Their teeth perfect. Rite of Circumcision. Observations on the Migrations of the Natives. Theory of an Inland Sea. Central Desert. Salt water drunk by Natives. Modes of procuring water. Survey the harbour. Natives on a raft. Anecdote. Bynoe Harbour. Well. Brilliant Meteors. Natives on Point Emery. Their surprise at the well. Importance of water. Anecdote. Languages of Australia. Specimens. Remarks. Leave Port.