REPORT ON THE DEEP-SEA DEPOSITS. 
New Hebrides, deposits between Fiji Islands and, 
88-91, 167-168. 
,, deposits between Raine Island and, 
90-93, 168-169. 
New Jersey, xxiii, 386. 
New Zealand, dejrosits between Sydney and, 84-87, 
166. 
„ ,, deposits betweenTongatabu and, 86-87, 
166. 
„ „ deposits off, 86-87, 166. 
Niafou Island, 296. 
Nickel, 328, 329, 330, 365, 368, 369, 371, 377. 
Nickeliferous native iron, 334. 
Nickles, M., 495. 
Nicolson, H. A., 189. 
Nightingale Island, deposits off, 157. 
Nile, River, xvi. 
Nitrogen, 255. 
Nitrogenous organic matter, 254, 256, 398, 489. 
Nitzschia constrida, var. aniardiea, 210. 
Nodoisaria, 46, 354. 
„ _farcimen, 263. 
Nodules, glauconitic, 32. 
„ manganese (see Manganese nodules). 
„ phosphatic (see Pliosphatic concretions). 
„ septarian, 375. 
Nonionina, 34, 36, 40, 50, 52, 56, 106, 130. 
„ scapula, 134. 
,, umhilicatula, 102, 106, 108, 114, 120, 122, 
124, 126, 128, 130, 132, 134, 263. 
Nordenskiold, N., 334. 
North America (see America). 
,, ,, deposits off, 151, 152. 
North Polar Expedition, 30. 
Norway, xv. 
Norwegian North Atlantic Expedition, 30. 
„ Sea, 183, 223. 
Nova Scotia, deposits between Bermuda and, 50-53. 
NummuUna, 46. 
Nummuhnidse, 34-146, 193, 206, 216, 225, 230, 289. 
Obsidian, 299, 314, 456, 457. 
Oceanic Plankton, 251, 281. 
Oceanography, history of, xiii-xxviii. 
Oersted, A. S., xxii. 
Offenbach, plastic clay of, 199. 
Oligoccne clay of Hillscheid, 199. 
Olivine, 22, 15.5, 217, 226, 243, 296, 297, 300, 301, 
303, 305, .307, 310, 311, 312, 313, 316, 
319, 320, 326. 
„ hematiscd, 312. 
5] 5 
Olivine rocks, 325. 
Oneiwphanta mutabilis, 181. 
Opal, 207, 212, 28-5, 406, 407, 410. 
Opliiomusium lijmani, 181. 
Opliiotholia suppUcans, 181. 
Opihiuroidea, 194, 265. 
Oran, xxi. 
Orhiculma, 154. 
OrlitoUtes, 63, 87, 93, 98, 166, 263. 
„ complanata, 89. 
OrluKna, 77, 81, 97, 161, 165, 167, 168, 172, 180, 
182, 260. 
„ unicersa, 164, 165, 180, 214, 259. 
“ Orbulina ooze,” 9. 
Ore, bog manganese, 371. 
Organic associations of glauconite, 383-384. 
„ materials in deep-sea deposits, 249-290. 
„ matter, 35, 37, 49, 6-3, 67, 73, 75, 77, 79, 83, 
87, 89, 93, 137, 145, 147, 161, 222, 236, 
254, 255, 256, 381, 383, 388, 394, 395, 
398, 489. 
„ remams, relative frequency of, 288-289. 
„ rocks, 318. 
„ substances in fine washings, 25. 
Organisms, calcareous, 257-280. 
,, changes produced by, 254-256. 
„ siliceous, 281-288. 
Origin of glauconite, 385-391. 
„ manganese nodules, 372-378. 
,, phiUipsite crystals, 405-411. 
,, phosphatic concretions, 397-400. 
Orinoco, River, 234. 
Orthoclase, 20, 318, 322, 325, 383, 384, 389, 457. 
„ kaolinised, 383, 389. 
Orthosilicate, 432, 463. 
Oscillatorise, 176. 
Ostracodes, xxvi, 26, 31, 34-146, 209, 216, 225, 230, 
265, 289. 
Otodus, 269. 
Otoliths of cod, analysis of, 268, 496. 
„ fish, 14, 26, 34-146, 216, 225, 267, 268, 
269, 289, 357, 358, 367. 
Oxide, magnetic, 328, 329, 330. 
Oxide of iron (see Iron). 
,, manganese (see Manganese). 
Oxygen, 255, 256. 
Oxij gurus Iceraudrenii, 224. 
,, rangii, 224. 
Oxgrhina, 178, 179, 268, 269, 270, 353, 489. 
,, trigonodon, 269. 
Oyster shells, 96. 
