SUBJECT INDEX 



951 



Seas, Siberian, 39, 50, 60, 267 

 seasonal changes of zooplankton, chemi- 

 cal composition, 764 

 seasons, biological, in plankton, 50, 52, 258 

 sediments, 87, 398-401 



— Akchagyl, 358 



— deep-water, 398 



— miocene, 401 



— moraine, 182 



— oligocene, 401 



— shallow-water, 392 



Sedov expedition/vessel, 34, 35 



Seliger lake — see lake 



sestonophages, 131, 132, 730, 731, 798, 



800,801,802,808 

 Sevastopol, 445 

 Seven Islands, 115 

 Severnaya Zemlya, 28, 46, 47, 220, 225, 



260 

 sexual maturity, 637 

 shallows, 27, 61,78, 675 



— Barents Sea Central, 41 



— Bear Island, 140, 147 



— Behring Sea, 675 



— Central, 139 



— Kanin, 149 



— Kanin-Kolguev-Pechora, 135 



— Murman, 78, 168 



— Norwegian, 174 



— Novosibirsk, 60 



— Novozemelsk, 139, 147 



— Spitzbergen 40, 139, 147 

 shark, 37, 38, 159, 779 



— hammer-head, 778 

 Shekshna, 580 

 shelf, 675 



shell-gravel, 400, 440, 441-4, 451, 661 



— mussel, 444 

 Shirokaya inlet — see inlet 

 shoal, Eisk, 480 



— Krivaya, 480 



shoaling of Caspian Sea, 541, 542, 544 

 shoaling, fish, 36 

 Shokal'sky strait — see strait 

 shrimps, 447, 578 

 silica, 87, 398, 685 

 silicilic acid, 474, 475, 560, 657 

 silicon, 398, 474, 556, 558, 699 

 silting, 127 



silts, 87, 88, 451, 555, 618, 650, 661, 666, 

 667 



— black, 400, 606, 649, 657, 661, 666 



— calciferous, 400 



— clayey, 88, 93, 229, 261, 457, 506, 649, 



650, 666, 667 



— cliff, 786 



— diatomaceous ooze, 820 



— grey, 400, 649, 661, 665, 666 



— hydrogen sulphide, 608, 618, 649, 660, 



661, 666 



— mussel, 150, 220, 323, 400, 445, 449, 450 



— ostracod, 449, 475 



— phaseolin, 400, 445, 446, 450 



— sandy, 87, 261, 441, 451, 649, 665, 666, 



667 



sinking down, of littoral fauna, 134, 293 



— — and rising of Barents Sea bottom, 



178 



of Fenno-Scandia, 178 



siphonophora, 38, 91, 236, 373, 403, 436, 



446 

 sipunculids, 72, 141, 165 

 Sivash, 466, 470, 528-37 

 size, of Aral Sea, 648 



Azov Sea, 466 



Baltic Sea, 271 



Barents Sea, 76 



Bering Sea, 675, 818 



Black Sea, 382 



Caspian Sea, 539 



Chukotsk Sea, 261 



fish, 377, 378 



Japan Sea, 750 



Laptev Sea, 255 



Okhotsk Sea, 675, 783 



organisms, 724 



decrease, 309, 330 



Polar Ocean, 29 



White Sea, 181 



Skaggerak, 38, 91, 280, 306, 309, 314, 433 

 slopes, of continental shelf, 60 

 sodium, 366, 551,645, 652 

 soils, 191, 229, 230, 261, 475, 531, 540, 



649, 665 



— bottom, 787 



— brown mud, 71, 88, 173, 217, 220, 229, 



248, 249, 650, 666 



— cartilaginous, finely, 138 



— chemical composition, 87 



— coarse-grained, 399, 533, 541, 551, 649 



— hard, 261, 504, 614, 617, 786 



— rock, 111, 191, 607, 608, 768, 786 



— sandy, 90, 274, 267, 323, 393, 400, 415, 



454, 499, 617, 665, 684, 771, 772, 774, 

 786, 820 



— shell-gravel, 399, 451, 475, 499, 506, 



607, 617, 666 



— silica-porifera, 145 



— silty (muds), 210, 267, 323, 499, 506, 



554, 617, 665, 774, 812 



— soft, 114, 142, 145, 191, 274, 399, 446, 



608, 616, 617, 666, 709, 812 

 soil-swallowing forms, 801, 807 

 solonetz, 452, 453 

 Solovetskiye Islands — see islands 

 Sosnovets Island — see island 

 South America, 582 



Southern Caspian, 539, 546, 548, 557, 558, 

 575, 587, 594, 600, 601, 603, 612, 623, 

 629, 630 



spawnings, 36, 162, 435, 521, 630-3 



species, Arctic-boreal, 53 



— circumpolar, 53 



— epicontinental, 53 



— formation, 57, 571 



— found below 2,000 m., 792 

 Elasipoda, 736 



Focoropulata, 727 



Phanerozonia, 727 



spiders, 202 



