8l2 



DEPTHS OF THE OCEAN 



Continental shelf, 56, 133, 134, 136, 13S, 195, 



198, 421, 430 



slope, 55, 133, 134, 136, 138, 195, 198, 



213, 420-437 

 Contour lines of depth first used on maps, 3 

 Convection currents, 226 

 Copepoda, 88, 107, 108, 382, 384, 479, 578, 



579-581, 588, 631, 639-640, 642, 645, 



655, 658, 693, 697, 702, 703, 719, 720, 



727, 755. 775 

 Coprolitic mud, 148 

 Coral mud, 149, 161, 162, 166, 168, iSo, 



199, 200 

 reefs, 181 



sand, 144, 149, 162, 166, 180 



Coral Patch, 195 



Corals, 9, 58, 121, 149, 419, 483, 484, 485, 

 486, 490, 505, 507, 508, 538, 546-559 



Cosmic spherules, 154, 158, 160, 166, 171 



Cottidie, 390, 436 



Crabs, 62, 63, 64, 65, 66, 91, 103, 420, 

 461, 464, 474, 476, 477, 486, 495, 496, 

 497, 498, 500. 502, 511, 520, 575, 584, 

 633' 671 



Cranchiidas, 592, 596 



Cranyonids, 496 



" Craspedon," 568 



Craspedota, 568 



Crayfish, 584 



Crinoids, 109, 419, 486, 545 



"Cruiser," The, 20 



Crustacea, 95, 108, 1 18, 121, 126, 127, 149, 

 225, 418, 420, .430, 469, 470, 476, 479, 

 482, 486, 496, 497, 504, 510, 511, 515, 

 520, 524, 525, 528, 534, 540, 545, 551, 

 556, 558, 562, 575, 579, 581, 582, 584, 

 631, 645, 656,658,663, 665, 666,669, 

 672, 673, 674, 691, 699, 719, 720-727, 

 773> 775, 782 {see also Decapods) 



Ctenophorce, 575, 595, 658, 692, 719 



Cumacea, 496, 506 



Current, Agulhas, 277 

 Canary, 635 

 Eastern Azores, 635 

 East Iceland Polar, 124, 300, 534 

 Labrador, 100, 115, 118, 213, 244, 260, 

 635, 658, 704 



Current-meter, 67, 263-264, 359 



observations, 13, 66, 67, 73, 99, 264-306 



Currents, oceanic, 5, 66, 67, 113, 174, 244, 

 245, 259-306, 310, 349-352, 370-374, 

 431, 514, 517, 525, 527, 531, 533, 534, 

 536, 558-559, 634-635, 704-710, 717- 

 718, 733-738 

 reaction, 776 

 tidal, 170, 267-272 



Cuttle-fish, 82, 87, 93, 103, 1 19, 494, 522, 590 



Cyanophyce^ii, 333-334, 356, 358, 385 



" Cyclops," The, 4, 9 



Cyclostomata, 611 



Cyphosidte, 614 



Dabs, no, 441, 442, 451, 452 

 Dacia Bank, 57, 195, 267 

 " Dacia," The, 13, 19 

 Danish Expeditions, 16, 67, 72 

 "Dart," The, 19 

 " Dead-men's fingers," 500 

 " Dead water," 275 

 Decapod Cephalopoda, 590 



Crustacea, 420, 506, 529, 530, 538, 544, 



551, 579, 582, 584-587, 585,654,702, 773 

 Deeps, 133, 139-143, 169 

 Deep-sea deposits {sec Deposits) 



fauna, 415, 536-54S 

 Denitrification, 369, 370 

 Density observations, 13, 236, 237, 238, 239, 



246 

 Deposits, marine, 8, 9, 10, 143-175, 427-431, 



559, 560, 784 

 Depth of the Ocean, 129-143, 164 

 Desmo-plankton, 347, 351, 354 

 Deutsche Seewarte, 214, 227 

 "Deutschland," The, 18 

 Development, direct, 517 

 Diatom ooze, 17, 146, 161, 162, 165, 168, 



169, 171, 175, 183, 185, 426, 427 

 Diatoms, 6, 60, 61, 65, 106, 146, 312-322, 



341-344, 345, 346, 347, 352, 353, 354, 



355, 356, 357, 358, 360, 361, 363, 365, 



366, 378, 380, 381, 382, 70S, 719 

 Didynms-plankton, 345, 349 

 Dimorphism in diatoms, 320 

 Dinophysidpe, 326, 333 

 Discontinuity layers, 16, 223, 280 

 " Discovery," The, 17 

 Dog-fish, 440, 441, 442, 451, 452, 646 

 Doliolids, 712 

 Dolomite, 181, 205 

 "Dolphin," The, 9, 141 

 Dolphin Rise, 56 

 Dolphins, 65 

 " Dorado," 74 

 Dory, 441, 442 



Dredging, 3, 5, 6, 10, 11, 24-27, 30-32 

 Drift-bottles, 261, 262 

 Drift nets, 45, 55, 90, 91 

 of vessels in the ice, 260 

 of wreckage in the North Atlantic, 260 

 " Duplex," The, 19 

 Dutch Expeditions, 17 



Meteorological Institute, 215 



Earbones of whales, 87, 149, 156, 157, 160, 



166, 171, 202, 207, 419 

 Earn, Loch, temperature observations in, 16 

 Earth, area of the, 132 

 Earth's crust, variation in level of the, 131 

 Earth's rotation, effects of {see Rotation) 

 Echinoderms, 120, 121, 127, 149, 158, 429, 



473, 474, 488, 491, 492, 504, 506, 507, 



515, 523, 524, 525, 527, 528, 529, 530, 



544, 575 



