Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.3)

XIV CONTENTS. Diemen's Land — Hobart Town — Aborigines all banished Mount Wellington— King George's Sound— Cheerless aspect of country Bald Head, calcareous casts like branches of trees — Party of natives Leave Australia . . . . .515 CHAPTER XXir. Keeling Island — Singular appearance of— Scanty Flora— Transport of seeds —Birds and insects— Ebbing and flowing springs— Coral formations re- sisting power of ocean— Fields of dead coral— Stones transported by roots of trees— Great crab— Stinging corals— Structure of lagoon islands — Encircling and Barrier reefs — General proofs of subsidence in the Pacific — Theory of lagoon islands caused by subsidence of the land Pacific and Indian oceans divided into alternate areas of elevation and subsidence — Points of eruption lie within the areas of elevation. 539 CHAPTER XXIII. Mauritius, beautiful appearance of— Hindoos — Cape of Good Hope — St. Helena — Geology— History of changes in vegetation, probable cause of extinction of land-shells — Ascension— Green Hill— Curious incrusta- tions of calcareous matter on tidal rocks — Bahia — Brazil — Splendour of tropical scenery — Pernambuco— Singular reef — Azores — Supposed crater — Hints to collectors — Retrospect of the most impressive parts of the voyage ...... 570 Addenda . . . . . .609 Index.