COMPOSITION of coral-formations. CONGLOMERATE coral-rock on Keeling atoll. On other atolls. Coral-rock. COOK islands, recently elevated. Cook islands. CORAL-BLOCKS bored by vermiform animals. CORAL-REEFS, their distribution and absence from certain areas. Destroyed by loose sediment. CORAL-ROCK at Keeling atoll. Mauritius. Organic remains of. CORALS dead but upright in Keeling lagoon. Depths at which they live. Off Keeling atoll. Killed by a short exposure. Living in the lagoon of Keeling atoll. Quick growth of, in Keeling lagoon. Merely coating the bottom of the sea. Standing exposed in the Low archipelago. CORALLIAN sea. Corallian sea. Cornwallis. Cosmoledo. COUTHOUY, Mr., alleged proofs of recent elevation of the Low archipelago. On coral-rock at Mangaia and Aurora islands. On external ledges round coral-islands. Remarks confirmatory of the author’s theory. CRESCENT-FORMED reefs. Cuba. CUMING, Mr., on the recent elevation of the Philippines. Dangerous, or Low archipelago. Danger islands. DEPTHS at which reef-building corals live. At Mauritius, the Red Sea, and in the Maldiva archipelago. At which other corals and corallines can live. Dhalac group. DIEGO GARCIA, slow growth of reef. DIMENSIONS of the larger groups of atolls. DISSEVERMENT of the Maldiva atolls, and theory of. DISTRIBUTION of coral-reefs. Domingo, St. DORY, Port, recently elevated. Dory, Port. Duff islands. Durour. Eap. EARTHQUAKES at Keeling atoll. In groups of atolls. In Navigator archipelago. EAST INDIAN ARCHIPELAGO, recently elevated. Easter. Echequier. EHRENBERG, on the banks of the Red Sea. On depths at which corals live in the Red Sea. On corals preferring the surf. On the antiquity of certain corals. Eimeo. ELEVATED reef of Mauritius. ELEVATIONS, recent proofs of. Immense areas of. Elivi. ELIZABETH island. Recently elevated. Elizabeth island. Ellice group. ENCIRCLED ISLANDS, their height. Geological composition. EOUA, description of. Eoua. ERUPTED MATTER probably not associated with thick masses of coral-rock. FAIS, recently elevated. Fais. Fanning. Farallon de Medinilla. Farson group. Fataka. FIJI archipelago. FISH, feeding on corals. Killed in Keeling lagoon by heavy rain. FISSURES across coral-islands. FITZROY, Captain, on a submerged shed at Keeling atoll. On an inundation in the Low archipelago. Flint. Flores. Florida. Folger. Formosa. FORSTER, theory of coral-formations. Frederick reef. Freewill. FRIENDLY group recently elevated. Friendly archipelago. FRINGING-REEFS, absent where coast precipitous. Breached in front of streams. Described by MM. Quoy and Gaimard. Not closely attached to shelving coasts. Of east coast of Africa. Of Cuba. Of Mauritius. On worn down banks of rock. On banks of sediment. Their appearance when elevated. Their growth influenced by currents. By shallowness of sea. Galapagos archipelago. Galega. GAMBIER islands, section of. Gambier islands. Gardner. Gaspar rico.