O24 
Coralline Zone, 16. 
Crinoidea, 434. 
oe James, on ocean currents, 376, 
1D} 
Dacrydium vitreum, 465. 
Darwin, Charles, M.A., F.R.S., ‘ Origin 
of Species,’ 8. } 
D’ Aubuisson, on deep-sea temperatures, 
Davis, Captain, R.N., 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 
Astropecten and Archaster, 121. 
Despretz, M., researches on the maxi- 
mum density of saline solutions, 35 ; 
temperature of greatest density of sea- 
water, 307. 
Dorynchus thomsoni, 174. 
Dredging Apparatus: Miiller’s dredge, 
239; Ball’s dredge, 240; deep-sea 
dredges, 246; derrick, 247 ; accumu- 
lator, 247 ; Aunt Sallies, 249; dredge- 
rope, 249; dredging in shallow water, 
244, 245; dredging in deep water, 
253 ; hempen tangles, 256, 257 ; empty- 
ing the dredge, 259; dredging-sieves, 
260. 
Dredging Committee, members of, 265 ; 
Belfast Dredging Committee. 266. 
Dredging Operations, on the coast of Ire- 
land, 266 ; of England, 266 ; of Shet- 
land and the Hebrides, 266 ; of Por- 
tugal and the Mediterranean, 267 ; of 
the North-east Atlantic, 267; of Nor- 
way, Sweden, and Denmark, 263; of 
INDEX. 
the Adriatic, 268; of Algeria, 268 ; 
Spitzbergen, 269 ; Malta, 270; Finland 
and Loffoten Islands, 270; United 
States, 277. 
Dredging Paper, 281. 
Dunean, Professor P. Martin, F.R.S., on 
deep-sea corals, 431. 
E. 
Echinocucumis typica, 125, 175; Echino- 
cyamus angulatus, 117, 459; Echino- 
thuridie, wide distribution of, 171; 
Echinus elegans, 76, 459; KH. escu- 
lentus, 458; E. flemingit, 116, 458; H. 
melo, 459; E. microstoma, 171, 459; 
E. norvegicus, 76, 116, 459; E. rari- 
spina, 459 ; EL. rarituberculatus, 116. 
Ethusa granulata, 176. 
Huplectella, 73. 
Eusirus cuspidatus, 125, 126. 
Evolution, doctrine of, 9. 
Like 
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, 166, 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, 6; specific 
centres of distribution, 7; the law of 
representation, 8, 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, 2€6. 
Fossil Echinide, 162. 
Frankland, Dr., F.R.S., analysis of sea- 
water, 511-518. 
Fusus sarsi, 464. 
G. 
Gevryon tiridens, 88. 
Globigerina bulloides, 22, 416. 
Gonoplax rhomboides, 87. 
Goodsir, Henry, deep dredging in Davis’ 
Strait, 21. 
Gray, Dr. John Edward, F.R.S., on 
Hyslonema, 422. 
Gulf-stream, 286, 356; description of, 
379; progress and extension of, through 
the North Atlantic, 385. 
H. 
Haeckel, Professor Ernst, 9 ; biological 
studies, 408. 
Halichondride, 74. 
