E

1. Earth, size of, 9

2. Earthquake waves (see also Tsunamis), 543, 544

3. Earth's rotation:

   1. angular velocity, 433

   2. deflecting force, 390, 433–438

4. East Greenland Current, 659, 660

5. East Indian Archipelago, basins and water of 736–739

6. Echinodermata:

   1. reproduction, 324, 325, 326

   2. synopsis, 311–312

7. Echo sounding (see also Sonic soundings), 76

8. Ecological groups of animals (see Animal population)

9. Eddy conductivity, 92

   1. computation from temperature observations, 135–137

10. Eddy conductivity of the air, 114

11. Eddy diffusion:

    1. importance to transportation of sediments along bottom, 962–966

    2. lateral, dispersal of suspended material by, 959

12. Eddy diffusivity, 93

    1. effect of stability on, 476, 477

    2. importance to tongue-like distributions, 504, 507

    3. lateral, 92, 93

       1. importance to sedimentation, 959

       2. importance to tongue-like distributions, 506–507

       3. numerical values, 483, 485

    4. numerical values, 481, 483, 484

13. Eddy viscosity, 91, 473, 474

    1. influence of stability on, 476

    2. numerical values, 481, 482

    3. related to lateral mixing, 474, 475

       1. Antarctic Circumpolar Current, 621

       2. Equatorial Countercurrent, 634

       3. numerical values, 485

14. Eel grass:

    1. as primary producer, 303, 893, 936–937

    2. structure and reproduction, 302–303

15. Eels:

    1. dispersal of larvae, 861–862

    2. homoiosmotic condition, 271

    3. migrations, 811

16. Ekman current meter, 367, 368

17. Ekman spiral, 493

18. Ekman water bottle, 354

19. Elasmobranchs, 312

    1. osmotic pressure of body fluids, 271

20. Electric conductivity, 71, 72

21. Elements derived from earth's crust, 219–222

22. Elements present in marine organisms, 228, 229

    1. concentration of, 233

23. Elements present in sea water, 174

    1. table, 176, 177

24. El Niño, 704, 705

    1. effect on fauna, 274

25. Emerita:

    1. dispersal of larvae, 859–860

    2. feeding habits, 895

26. Endemic populations, maintenance of, 863–865

27. Energy equation, 441, 486

28. Environment, marine:

    1. antiquity, 281–284

    2. characteristics, 268

    3. classification, 275–280

    4. extent, 274

29. Environmental factors (see Light, Currents, Oxygen, Salinity, and Temperature)

30. Equatorial Countercurrent:

    1. Atlantic, 633–637

    2. Indian Ocean, 696

    3. Pacific, 709–712

31. Equatorial currents (see North and South Equatorial Currents)

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― 1067 ―

32. Equiscalar curves, 155

33. Equiscalar surfaces, 154, 155

34. Equivalent diameters of sedimentary debris, 958

    1. compared to true dimensions, 982

    2. statistical terms derived from, 970, 971

    3. used for classifying sediments, 957, 974

35. Eroding velocity of ocean currents, 961

36. Erosion by currents, 41, 960–962

37. Euphausiids:

    1. as food of whales, 904, 906–907

    2. reproduction, 323

    3. synopsis, 310

38. Euphotic zone, 774

39. Eurybathic animals, 806–807

40. Evaporation:

    1. annual variation, 122

    2. average annual, 120

    3. computation of, 119, 120

    4. diurnal variation, 122, 124

    5. from the Black Sea, 650

    6. from the Mediterranean Sea, 647

    7. in different latitudes, 120, 121

       1. table, 123

    8. latent heat of, 62

    9. observations of, 119

    10. process of, 115–119

41. Extraterrestrial material in sediments, 952