INDEX 
Hie names in italics are aH names of places, and refer exclusively to the Appendix; In 
well-defined archipelagoes, or groups of islands, the name of each separate island is 
not given. References in square brackets refer to the new appendix. 
ABR 
Abrolhos, Brazil, coated by corals, 
79 
Abrolhos ( Australia ), 235 
Absence of coral-reefs from cer- 
tain coasts, 81 
Acaba, gulf of, 266 
Actceon group, 200 
Admiralty group, 224 
Admiralty islands, [285] 
Africa, east coast, fringing-reef of, 
76. Madreporitie rocks of, 
181 
Africa, east coast, 254 
Agassiz, Prof. A. 
on Tortuga and Florida 
reefs, [287] 
effect of Gulf stream, [287] 
growth of Florida reefs, [288] 
effect of currents on reefs, 
[289] 
depth of lagoons, [290] 
formation of silt [291] 
Age of individual corals, 96 
Aiou, 231 
Aitutaki, 204 
Alclabra, 251 
Alert reef, 222 
Alexander, Grand Duke, island, 
207 
Allan, Dr. 
on Holuthuriae feeding on 
corals, 20 
A30 
Allan, Dr. 
on quick growth of corals at 
Madagascar, 104 
on reefs affected by currents, 
79 
Alloufaiou, 214 
Alphonse, 250 
Amargura, 214 
Amboina, 232 
America, west coast, 199 
Amirantcs, 249 
Anachorites, 225 
Anambas, 240 
Anamouka, description of, 177 
Anamouka, 213 
Andaman islands, 239 
Antilles, 274 
Appoo reef, 241 
Arabia Felix, 260 
Areas, 
great extent of, interspersed 
with low islands, 122 
of subsidence and of eleva- 
tion, 191 
of subsidence appear to be 
elongated, 191 
of subsidence alternating 
with areas of elevation, 
192 
Arru group, 231 
Arzobispo, 230 
Ascension, no reef at, 83 
