EEPORT ON THE DEEP-SEA DEPOSITS, 
521 
Sharks’ teeth, analyses of, 488-489. 
“Shearwater,” the, xxvii. 
Shetland Islands, xxiii. 
Shields, J., 421. 
Shrimps, 181. 
Sicily, xxi, 307. 
Sided, W. H., 228, 287. 
Siebengebirge, 406. 
Sienna, 20. 
Sieves, 9. 
Sigsbee, C. D., 11. 
SiUca, xxiv, 22, 23, 25, 205, 286, 374, 376. 
„ determination of, 28. 
Silicate of alumina, hydrated, 338, 374, 408. 
„ iron, xxiv. 
„ hme, xxiv. 
Silicate spherules, 330-332. 
Silicates, alkaline, 408. 
Siliceous organisms, 17, 18, 25, 31, 35-147, 
281-288 
,, „ in Blue Mud, 231. 
„ „ ,, Coral Mud, 245. 
„ „ „ Coral Sand, 246. 
,, ,, „ Diatom Ooze, 209. 
,, „ „ fine washings, 25. 
,, ,, „ Globigerina Ooze, 216-217. 
„ „ „ Green Mud, 238. 
„ ,, „ Green Sand, 239. 
,, ,, „ Pteropod Ooze, 226. 
„ ,, „ Radiolarian Ooze, 206. 
,, „ „ Red Clay, 193. 
„ „ ,, Red Mud, 234. 
,, „ „ Volcanic Mud, 241. 
,, „ „ Volcanic Sand, 243. 
„ „ solution in sea-water of, 288. 
“Siliceous shore deposit,” 186. 
Siliceous Sponges, 281, 342, 351, 367. 
Silicic acid (see Silica). 
Silurian sands, 384. 
“ Silvertown,” the, 30. 
Simon’s Bay, deposit in, 74-75. 
Sipocz, L., 27, 208, 456, 458-461, 463. 
Skelmorlie Bank, manganese deposits on, 365. 
Skylax of Coryanda, xvi. 
Sladen, W. P., 265. 
Slags, 332. 
Slane, M. le, xiv. 
Slate, 211, 322, 401. 
Slip water-bottle, 6, 8. 
Smith, E. A., 224, 266, 267. 
,, Lawrence, 462. 
DKEP-SEA DEPOSITS CHALL. EXP. 1891. 
Society Islands, 400. 
„ deposits between Sandwich Islands and, 
178-279. 
,, deposits between Valparaiso and, 
180-181. 
,, deposits off, 179-180. 
Soda, determination of, 28. 
Soil of coral atolls, 294. 
Soldani, A, xx, xxi. 
Sollas, W. J., 285. 
Solomon Islands, xxix. 
Solution of calcareous structures in sea-water, 277, 278, 
279, 280. 
,, Cetacean bones in sea-water, 270, 276, 277. 
„ siliceous organisms in sea-water, 205, 288. 
Sombrero, deposits between Tenerife and, 40-45, 
149-150. 
„ deposits off, 44-45, 150. 
Sorby, H. C., 279. 
Soi'osplixra, 43. 
Sounding and dredging arrangements on board the 
Challenger, 12. 
Sounding, deepest in the Atlantic, 46-47. 
„ „ „ Pacific, 108-109, 175, 
204-205. 
„ shallowest far from land, 143. 
Sounding lead, Buchanan’s improved, 2. 
„ cup, 1, 2. 
„ ordinary deep-sea, 1. 
„ valve, 1, 2. 
Sounding machine, Baillie, 2, 3. 
„ Hydra, 2, 3. 
Sounding tube and water-bottle, Buchanan’s combined, 
4,5. 
Soundings, first deep, xv. 
South America (see America). 
„ deposits between Tahiti and, 180-181. 
„ „ off, 68-71, 180-182. 
South Carolina, xxvii. 
South Sea Islands, xxii. 
Southern Indian Ocean, deposits in, 160-165. 
„ ,, „ manganese in deposits of, 
343-348. 
Specimens of deposits available, 29-30. 
Spectroscopic examination of manganese nodules, 
417-418. 
Sperm whale, 276. 
Sphseroidea, 284. 
Spliseroidina, 167, 192, 260, 267. 
„ hulloides, 100. 
„ dehiscens, 155, 168, 180, 214. 
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