B

1. Bacteria:

   1. aerobic, in sediments, 212, 996

   2. anaerobic, in sediments, 212, 996

   3. bottom deposits, effect on, 917–918

   4. collection and analysis of, 383

   5. denitrifying, 257

   6. distribution in the sea, 918–920

   7. importance in sedimentation, 995

   8. importance to precipitation of iron compounds, 1032

   9. in the Black Sea, 871

   10. modes of life, 910, 913

       1. autotrophic, 910

       2. heterotrophic, 911

       3. oxygen relations, 913, 917

   11. nitrifying, 256

   12. occurrence in sediments, 1016

   13. possible role in petroleum formation, 996

   14. structure and reproduction, 908–910

   15. used to determine organic carbon, 249–251

   16. utilizers of dissolved organic matter, 911–913

2. Baffin Bay:

   1. bottom topography, 30

   2. water masses, 663–665

3. Baltic Sea, 657–658

4. Barite concretions, 952, 1033

5. Barium, 183

6. Barnacles, reproduction of, 324, 326

7. Barriers, faunal (see Zoogeography)

8. Base-exchange in clay minerals, 988, 990

   1. importance to flocculation, 958

9. Basins, 23, 26

   1. adjacent seas, 37, 38, 736, 738

   2. sediments in, 1026, 1028

   3. with inflow across the sill, 148, 149

   4. with outflow across the sill, 147, 148

10. Basin water, 147

    1. plant nutrients, 246, 1028

    2. stagnating, 1026, 1028

11. Bathythermograph, 352

12. Bay of Fundy:

    1. tidal currents, 569

    2. tides, 562, 563

13. Beach:

    1. deposits:

       1. character, 1023

       2. composition, 1022

       3. texture, 1019–1023

          1. relation to slope of beach, 1018, 1019

    2. equilibrium state, 44

    3. terminology, 43, 44

14. Benguela Current, 627–629

15. Benthic environment and its subdivisions, 275–278

16. Benthic organisms, importance of to texture of sediments, 997

17. Benthos, 280

    1. biological factors in the concentration, 907–908

    2. collection of, 374–375

    3. deep-sea, 805–810

    4. littoral, 800–805

    5. vertical distribution of, 806–807

18. Bering Sea, 732, 733

19. Bering Strait, currents of, 665, 723

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― 1063 ―

20. Biocycles, 274

21. Biological factors influencing movements and concentrations of organisms, 898–908

22. Bioluminescence, 300, 304, 814, 833–835

23. Biosphere, 274

24. Biotype, 279

    1. facies of, 280

    2. inhabitants of, 280, 879

25. Bipolarity, 849–850, 868

26. Birds dependent upon the sea, 313, 942

27. Bjerknes' theorem of circulation, 460–462

28. Black Sea, 649–651

    1. biology of, 871–872

    2. lamination in sediments, 1040

29. Body fluids:

    1. composition, 232, 270

    2. osmotic relationships, 269, 272

       1. control of, 271

    3. relation to sea water, 269

30. Bolting cloth, 377, 378

31. Boric acid, influence of on alkalinity, 198, 199

32. Boron, 180

33. Bosporus, currents of, 650

34. Bottom samplers, 344–347, 375

35. Bottom topography:

    1. illustrated, 18, 30, 32, 34, 35

    2. influence on currents, 466–469

    3. large-scale features, 23, 27–30

    4. maximum depths, 18, 19

    5. nomenclature, 25–27

    6. profiles, 17, 18

    7. representation of, 16

36. Bottom water, formation of, 138, 139

    1. Antarctic, 611, 612

    2. Irminger Sea, 682, 683

    3. Labrador Sea, 664

    4. Mediterranean, 645, 646

    5. Norwegian Sea, 656, 657

37. Bottom water, potential temperature of, 749

38. Bottom water of the oceans, 745–754

39. Boundary condition:

    1. dynamic, 441

    2. kinematic, 424

40. Boundary surface, slope of, 444

41. Boundary waves (see Internal waves)

42. Bowen ratio, 117

43. Brachiopoda synopsis, 308

44. Brandt's theory of phytoplankton growth, 768, 784

45. Brazil Current, 628, 629

46. Bromine, 179

47. Browsing animals, 895–896

48. Bryozoa synopsis, 308

49. Buffer action of sets water, 195, 202

    1. ecological importance, 268

50. By-the-wind sailer (see Velella)