REPORT ON THE DEEP-SEA DEPOSITS. 
513 
Manganese nodules, analyses of, 363, 370-371, 417-423, 
453, 464-488. 
„ ,, chemical composition of, 368-371. 
,, ,, microscopic characters of, 
367-368. 
„ ,, mode of occurrence of, 341-337. 
,, ,, origin of, 372-378. 
,, ,, qualitative analyses of, 418-419, 
468-469. 
„ ,, quantitative analyses of, 419-423, 
439-470. 
,, ,, spectroscopic examination of, 
417-418. 
„ „ state of oxidation of manganese in, 
470-471. 
INIanganese ore, hog, 371. 
„ peroxide (see Manganese). 
Manganite, 369. 
Manila, deposits between Hong Kong and, 100-101. 
„ „ „ Samboangan and, 98-103. 
„ „ off, 100-101. 
Manila Harbour, deposit in, 100-101. 
ManteU, G. A, xxiv. 
Marble, xx. 
Marginulina, 46. 
Marine deposits in general, 184-188. 
„ fauna and flora in general, 249-253. 
iMarion Island, deposits between Cape of Good Hope 
and, 74-77, 160-161. 
,, „ deposits between Crozet Islands and, 
76-79, 161. 
„ „ deposits off, 76-77, 161. 
Marls, xxviii, 384. 
Marshall, T. R., 421. 
Marsilli, L. F. comte de, xix. 
Marsipella, 263. 
Massa Island, xxi. 
]\Iaterials available, 29, 
,, derived directly from the solid crust of the 
earth, 291-326. 
„ of organic origin in deep-sea deposits, 
249-290. 
]\Iaury, M. F., xxiv, xxv. 
Mean depth (see Average depth). 
INIeangis Island, deposits between Admiralty Islands 
and, 174. 
Mediterranean Sea, xiii, xxii, xxiii, 382. 
“Medusa,” the, 251. 
jMegasthenes, xviii. 
Melbourne, deposits between Heard Island and, 
163-164. 
(deep-sba deposits chall. exp. — 1891.) 
Melbourne, deposits between Sydney and, 82-83, 
165. 
,, deposits between Termination Land and, 
80-83. 
„ rock fragments obtained between Heard 
Island and, 322. 
Meldrum, C., 294. 
Meroplank tonic, 261. 
Mesoplodon, 179, 271, 272, 347. 
„ layardi, 271, 272. 
Messier Channel, deposits in, 182. 
Metallic iron, 356. 
„ nuclei of magnetic spherules, 328. 
Metamorphic quartzite, 322. 
Metasilicate, 432, 463. 
Meteoric iron, 328, 329, 330. 
,, of Santa-Catarina, 330. 
Meteorites, 328, 329, 330, 336. 
„ chondres of, 330, 331. 
Methodical description of Challenger deposits, 33-147. 
Methods of chemical analysis, 27. 
,, obtaining deposits, 1. 
,, study of deposits, 11. 
Meunier, S., 334. 
Meynard, M., xviii. 
Mezorostral bones of ZipMus, analyses of, 491, 494, 
495. 
Mica, 21, 217, 226, 231, 318, 322, 325, 354. 
„ black, 296, 320, 322, 396. 
„ white, 322, 325, 326, 383, 384, 389. 
Micaceous sandstone, 211, 322. 
Mica-schist, 152, 163, 195, 322, 325, 383, 389. 
Microcline, 20, 217, 325, 326. 
Microscopes used on board the Challenger, 1 1 . 
Microscopic characters of glauconite, 381-382. 
,, ,, manganese nodules, 
367-368. 
,, ,, phosphatic concretions, 
393-395. 
„ examination of deposits, 14, 27. 
Miliolid®, 34-146, 193, 216, 225, 230, 289. 
Miliolina, 34, *38, 44, 46, 50, 52, 54, 56, 58, 60, 62, 64, 
66, 70, 72, 74, 80, 84, 98, 100, 102, 106, 
114, 116, 117, 142, 144, 146, 162, 165, 
193. 
,, seminuluni, 130, 134, 263. 
„ venusta, 104. 
Millepora, 78, 144, 145. 
Milne-Edwards, M., xxii. 
Mindanao Island, deposit off, 172. 
Mineral associations of glauconite, 383-384, 
67 
