524 



INDEX. 



Coralline Zone, 16. 

 Crinoidea, 434. 



Croll, James, on ocean currents, 376, 

 381. 



D. 



I hi,-, ,i,l ", ,i in ,■;/,; mil, 465. 



Darwin, ('harks, M.A., F.R.S., 'Origin 

 of Species,' 8. 



D'Aubuisson, on deep-sea temperatures, 

 360. 



Davis, Captain, UN., testing thermo- 

 meters, 290, 295. 



Dayman. Joseph, Commander R N., 

 23, 229, 302 ; temperatures of the 

 Atlantic, 359. 



Deep-sea Sounding, 205 ; cup-lead, 210 ; 

 Brooke's deep-sea sounding apparatus, 

 211, 213 ; the ' Bulldog ' sounding- 

 machine, 215 ; the ' Fitzgerald ' sound- 

 ing machine. 217 ; the ' Hydra ' sound- 

 ing-machine, 218 ; donkey-engine, 221 ; 

 derricks, 221 ; the ' accumulator,' 

 222 ; observed rate of descent of the 

 sounding instrument, 223 ; Massey's 

 sounding-machine, 225. 



Deep-sea Temperature, doctrine of, 35 ; 

 distribution of heat in the sea, 36 ; 

 cold wall, 37 ; minimum temperature 

 of the sea, 38 ; proximity of warm 

 and cold areas, 131 ; great uniformity 

 of temperature at all depths in the 

 Mediterranean, 191, 285 ; serial 

 soundings for temperature, 309-325. 



Depth of the Sea, 1 ; first successful 

 dredgings at great depths, 3; animal 

 forms found at depths of from 70 to 1,200 

 fathoms, 27 ; animal life abundant at 

 the bottom of the sea, 31 ; average 

 depth of the sea, 31 ; absolute stillness 

 at great depths, 37 ; penetration of 

 light, 45 ; abundance of the genera 

 Astropeden and Archaster, 121. 



Despretz, M., researches on the maxi- 

 mum density < if saline solutions, 35; 

 temperature of greatest density of sea- 

 water, 307. 



Vorynchus tkomsoni, 174. 



Dredging Apparatus: Muller's dredge, 

 239 ; Ball's dredge, 240 ; deep-sea 

 dredges, 240 ; derrick, 247 ; accumu- 

 lator, 217 : Aunt Sallies, 249 ; dredge- 

 rope, 249 ; dredging in shallow water, 

 214, 245 ; dredging in deep water, 

 253 ; hempen tangles, 2."0. 257 ; empty- 

 in- ■the dredge, 259; dredging-sieves, 

 260. 



I induing Committee, members of, 265; 

 Belfast Dredging Committee, 266. 



Dredging Operations, on the coast of Ire- 

 land, 266; of England, 200 ; of Shet- 

 land and the Hebrides, 260; of Por- 

 tugal and the Mediterranean, 2<i7 ; of 

 the North-east Atlantic, 207: of Nor- 

 way, Sweden, and Denmark, 268; of 



the Adriatic, 268 ; of Algeria, 268 ; 



Spitsbergen, 209 ; Malta, 27U ; Finland 



and Loffoten Islands, 270; United 



States, 277. 

 Dredging Paper, 281. 

 Duncan, Professor P. Martin, F.R.S., on 



deep-sea corals, 431. 



Eckinociicumis typica, 125, 175; Echino- 

 cyamus angulotkus, 117, 459; Echino- 

 thuridas, wide distribution of, 171 ; 

 Echinus elegans, 76, 459; K. escu- 

 lentus, 45S ; E.Jlemingii, 116, 458; E. 

 vielo, 459; E. microstoma, 171, 459; 

 E. norvegicus, 76, 116, 459 ; E. rari- 

 spina, 459 ; E. rarltubtrcalalus, 110. 



Ethusa granulata, 176. 



Euplectella, 73. 



Eusirus cuspidalus, 125, 126. 



Evolution, doctrine of, 9. 



Findlay, A. G., on the Gulf-stream, 390. 



Fishes, new species of, 130. 



Flabellum distinctum, 432. 



Florida, fauna of the Strait of. 171. 



Foraminifera, 115, 106, 415, 478. 



Forbes, David, F.R.S., analysis of the 

 white chalk of Shoreham, 469 ; of the 

 Folkestone grey chalk, 469 ; on speci- 

 mens of Atlantic mud, 514-518. 



Forbes, Edward, F.R.S., 4; on the dis- 

 tribution of marine forms, 6 ; on the 

 immutability of species, ; specific 

 centres of distribution, 7 ; the law of 

 representation, S, 13 ; zones of depth, 

 15 ; representative forms, 17 ; inverted 

 analogy between the distribution of 

 the fauna and flora of the land and of 

 the sea. 44 ; on dredging, 266. 



Fossil Echinidse, 162. 



Frankland, Dr., F.R.S., analysis of sea- 

 water, 511-513. 



Eusus sarsi, 464. 



G. 



Geryon trident, 88. 



Globigerina bulloides, 22, 416. 



Gonoplax rhomboides, 87. 



Goodsir, Benry, deep dredging in Davis' 



Strait, 21. 

 Gray, Dr. John Edward, F.R.S., on 



Eyalonema, l_2. 

 Gulf-stream, 286, 356 ; description of, 



■"•7!': progress ami extension of, through 



the Ninth Atlantic, 385. 



II. 

 Haeckel, Professor Ernst, 9; biological 



studies, KIS. 



I lalichondridae, 7 l. 



