746 
Mangaia, island of, 404. 
Mangroves of the Feejees, uses of, 342. 
Manhii, or Waterlandt, 54, 74. 
Manilla, on Luzon, 549. 
Manono, island of, 333. 
Manua, island of, 809. 
Manuai, island of, 405. 
Maraki, island of, 52, 71, 410. 
Marchand, height of Mount Loa, 156. 
Margaret Island, 70. 
Marquesas Islands, little coral about, 137. 
evidences of subsidence about, 
397. 
Marshall Islands, 15, 410, 417, 421. 
Maui, geological account of, 226, 
on elevation of, 408. 
Mauilite, a new mineral, 280. 
Mauke, island of, 404. 
Mauna Loa, see Mount Loa. 
Mauritius, area of crater, 363. 
Maurua, 285, 304. 
Megadesmus antiquatus, 694. 
cuneatus, 698, 
levis, 694. 
globosus, 694. 
Melanesia, limits of, 12. 
active volcanoes of, 25. 
Menchikoff atoll, 54, 133. 
Metamorphic changes, New Zealand, 439, | 
440, 448. 
rocks in Oregon, 630, 637. 
Metia, an elevated coral island, 67, 126, 
403. 
Mica in trachyte, 650. 
Mica schist, material resembling, produced 
by decomposition of basalt, 515, 
Micronesia, limits of, 12. 
Minerals, in the Feejees, 350. 
of the Hawaiian Islands, 198, 230. 
of Nassau Bay, 604. 
in New South Wales, 468, 513. 
of Oregon, 620, 637, 656, 658, 
of Samoa, 315, 323, 732. 
of San Lorenzo, 598. 
of Tahiti, 298. 
Minera! constitution of basaltic islands of 
the Pacific, 372. 
INDEX. 
Mineral fluorids and phosphates formed 
from coral rock, 151, 152. 
Mineral spring at Kailua, affording glauber 
salt, 215. 
in the Shasty Mountains, 643. 
Mitchell, T. L., fertility of New South 
Wales, 458. 
extent of the Coxe Valley, New South 
Wales, 527. 
Mitiaro, island of, 404. 
Modiolopsis, see Cypricardia. 
Molokai, 232, 233. 
elevation of, 408. 
Morehead, depth of growing corals in the 
Red Sea, 98. 
Moresby, on the Chagos Bank, 67. 
soundings by, 56. 
Morlot, A. von, on dolomisation, 153, 7381. 
Morris, C., age of coal of Australia, 495. 
fossils of Australia, 683 et seg. 
Mount Keka, on Maui, height of, 156, 227. 
Haleakala, on Maui, height of, 156, 
Hood, 615. 
Hualalai, 156; 215. 
Kea, account of, 214. 
height of, 156. 
height of vegetation on, 167. 
early level of, 413. 
valleys of, 384. 
| Mount Loa, height of, 156. 
| height of vegetation on, 167. 
| form of, 168. 
| dome, proper limits of upper curve 
of, near Kilauea, 226. 
map of part of, 169. 
angle of slopes of, 169. 
account of Kilauea, 171. 
summit crater and eruptions of, 
206, 208. 
various pit craters and cones of, 
| 211. 
characteristics of, 214, 355. 
a crater of eruption, 370. 
not topped with cinders, 216, 
quietness of eruptions, 216. 
mode of action in, 217. 
slopes of lava in, 357. 
