266 



INDEX. 



PAGE 



Augustine, St. , . 203 

 Auroraisland, an upraised atoll 



" 107, iiS, 175 

 Aurora . , . .189 

 Austral islands, recently ele- 

 vated . , 166, 174, 175 

 Austral islands , . .192 

 Australia, N. IV. coast . . 220 

 Australian barrier-reef . 67, 158 

 Australian barrier . . 208 



Babuyan group . . . 229 



Bahama banks . . 255, 257 

 Bat abac .... 226 



Bally 222 



Baring . . . .205 



Earrier-reef of Australia 67, 158 



of New Caledonia . 71 



Barrier-reefs, breaches through 129 



not based on worn down 



margin of rock . . 70 



on banks of sediment . 7° 



on submarine craters . 7 1 



steepness of their flanks 62, 63 



their probable vertical 



thickness . . 7°s l2 % 



theory of their formation 



127, 128, 129, 130 

 Bamp'on shoal . . . 209 

 Banks islds. .... 207 

 Banks in the West Indies . 252 

 Bashee islds. . . . 229 



Bass is Id. . . . .194 

 Batoa ..... 202 

 Beaupri reef , . . 20S 



Beechey, Captain, obligations 

 of the author to . . 38 



on submerged reefs . 40 



account of Matilda island IOO 



Belcher, Captain, on boring 



through coral-reef . . 98 



Bellinghausen . . . 191 



Bermuda islds. , . .263 



Bevendge reef . . . 200 



Bligh 207 



Bolabola, view of . . 17 



Bombay shoal , . .232 



Benin Bay .... 224 



PAGE 



Bonin group . . . 216 



Borings through coral-reefs 98, 99 

 Borneo, W. coast, recently ele- 

 vated . . . 169, 170 

 Borneo, E. coast . . . 223 

 S. W. and W. coast 226, 227 



N. coast 

 •western bank 



227 

 232 

 201 

 205 

 210 



Boscawen 



Boston .... 

 Bouka .... 

 Bourbon . . . . 235 

 Bourou .... 218 



Bout on .... 224 



Brazil, fringing-reefs on coast 



of 80 



Breaches through barrier-reefs 129 



Brook 195 



Bunker . . . . 195 



Bunoa ..... 226 

 Byron , , , 204 



Cagayanes ...» 227 

 Candelaria . , . .210 

 Cargados Carajos , . . 235 



Caroline arch. . . .212 



Caroline isld. ■ . -194 



Carteret shoal . , .217 



Caryophyllia, depth at which 



it lives . . . .108 

 Cavilli .... 227 



Cayma?i isld. . . . 260 



Celebes ..... 219 

 Ceram ..... 218 



Ceylon, recently elevated . 170 

 Ceylon .... 233 



Chagos Great Bank, descrip- 

 tion and theory of 58, 59, 142, 143 



Chagos group . , . 145 



Chagos group . . . 234 



Chama-shells embedded in 

 coral-rock .... 105 



Chamisso, on corals preferring 

 the surf . . . . 87 



Changes in the state of Keel- 

 ing atoll . . . . 31 



of atolls . . . 124 



