INDEX. 
Mendana, 343. 
Merulina, 56, 66, Plate VI. 
Metia, 172, 193, 274, 329, 383, 386. 
magnesian limestone of, 393. 
Metridium marginatum, lasso-cell, 33. 
Millepora alcicornis, 104, 105, 113, 114, 
418. 
Minerals of coral islands, 317. 
Mitiaro, 341. 
Mobius, K., on lasso-cells, 30. 
Molluccas, 346. 
Molokai, elevation of, 377. 
Montipora, 72. 
Moresby, Captain, on the Maldives and 
Chagos Bank, 172, 186, 192. 
Moseley, H. N., on Heliopore, 93. 
on Millipores, 104. 
Mud of channels and lagoons, 142, 150, 
181, 182, 183. 
Muricea, 87. 
Murray, J, on the talus theory and 
Tahiti, 281. 
erosion of emerged lands, 293. 
Mussa, 64. 
Narrsa, 169, 203, 369. 
Namuka, 373. 
Navidad reef, 271. 
Navigator Group, 341, 362, 374. 
Nazareth Bank, 271. 
Necker Island, 342. 
Nelson, on Bermudas, 218. 
on Bahamas, 217. 
Nettling cells, 30. 
New Britain, 345. 
New Caledonia reefs, 135, 148, 344. 
New Guinea, 345. 
New Hebrides, 348, 381. 
New Ireland, 345. 
Newmarket, 377. 
New Zealand Old Hat, 255. 
Nonouti, 164, 169, 380. 
Norfolk Island, 344. 
Nukunono, 374. 
Nullipores, 107, 174. 
Oanu, 306, 324, 411. 
caverns in elevated coral reef of, 398. 
chalk of, 395. 
437 
Oahu, artesian borings on, 287, 411. 
drift sand rock, 155, 417. 
map of part of, 413. 
tufa cones of, 411. 
Oatafu, 198, 374. 
Ocean, depths of, see Depths. 
temperatures of, 335, 399. 
Ocean Island, 362, 378. 
Oceanic currents carry away little detri- 
tus from islands, 143. 
Oceanic subsidence, proofs of, 368, 411. 
Oculina arbuscula, 99. 
diffusa, 114, 125, 256. 
pallens, 114. 
speciosa, 114. 
Valenciennesii, 114. 
varicosa, 69, 114. 
Oculinacea, 66, 109. 
Okatutaia, 341, 372. 
Old Hat, of New Zealand, 235. 
of Anticosti, 236. 
Oolite, 153, 156, 392. 
Oolitic rocks of Florida Keys, 206. 
Orbicella annularis, 113, 125, 418. 
aperta, 113. 
cavernosa, 55, 113, 114, 418. 
Orbicellidee, 67. 
Orbitolites about Australian reefs, 152. 
Organ-pipe Coral, 84. 
Otuhu, 199. 
Paciric, elevations in, 368. 
axis of subsidence in, 363. 
subsidence by broad anticlinals and 
synclinals, 363. 
chain, length of central, 402. 
Palao, see Pelews. 
Pali, 44. 
Palmyra Island, 375. 
Panama, corals of, 111, 339. 
Pandanus, 314, 327. 
Paractis rapiformis, 23. 
Paumotus, 111, 169, 301, 340. 
elevations in, 369, 385. 
botany of, 325. 
Pavonaride, 93. 
Peachia hastata, 25. 
Peacock’s Island, 171, 177, 182, 200. 
| Pearl and Hermes Reef, 361. 
