ALBERT

Note: CONTENTS: THE COMPOSITION OF SEA-WATER. - SECTION I. CHEMISTRY. - 1. THE OCEANS AS A CHEMICAL SYSTEM / BY E. D. GOLDBERG. - 1. The composition of sea-water. - 2. Reactivities of the elements. - 3. Chemical reaction in the oceans and the compositions of the end-products. - 4. Space and time distributions of the elements. - 2. THE INFLUENCE OF ORGANISMS ON THE COMPOSITION OF SEAWATER / BY A. C. REDFIELD, B. H. KETCHUM AND F. A. RICHARDS. - 1. Introduction. - 2. The biochemical cycle. - 3. The biochemical circulation. - 3. ARTIFICIAL RADIOACTIVITY IN THE SEA / BY Y. MIYAKE. - 1. Artificial radioactivity in oceanic waters. - 2. Enrichment of radioactive substances in marine products. - 3. Artificial radioactivity as a tracer of water movements in the ocean. - 4. Disposal of radioactive waste in the ocean. - 4. RADIOISOTOPES AND LARGE-SCALE OCEANIC MIXING / W. BROECKER. - 1. Introduction. - 2. Useful isotopes. - 3. Steady-state distribution of 14C. - 4. Ocean-atmosphere CO2 exchange rates. - 5. Oceanic mixing models. - 6. Industrial CO2 effect. - 7. 226Ra distribution. - 8. 90Sr distribution. - 9. Non-steady-state conditions. - 10. Conclusion. - 5. CHEMICAL INSTRUMENTATION / BY D. E. CARRITT. - 1. Introduction. - 2. Chlorinity, salinity, density and related properties. - 3. Water tagging and tracer techniques. - 4. Measurement of dissolved gases. - 6. WATER SAMPLING AND THERMOMETERS / BY H. F. P. HERDMAN. - 1. Sampling. - 2. Thermometry. - SECTION II. FERTILITY OF THE OCEANS. - 7. PRODUCTIVITY, DEFINITION AND MEASUREMENT / BY E. STEEMANN NIELSEN. - 1. Introduction. - 2. Definitions. - 3. Methods for measuring primary production. - 4. The relation between the rate of gross production and net production below a surface unit. - 5. Transparency of the water versus organic production. - 6. The significance of single individual measurements of primary production. - 7. The influence of weather conditions. - 8. ORGANIC REGULATION OF PHYTOPLANKTON FERTILITY / BY L. PROVASOLI. - 1. Introduction. - 2. Data from chemical analysis. - 3. Organic products of algae and bacteria. - 4. Nutritional requirements of marine algae. - 5. Crustacea and organic solutes. - 6. Data from biological analysis of sea-water. - 7. Prospects. - 8. Addendum. - 9. BIOASSAY OF TRACE SUBSTANCES / BY W. L. BELSER. - 1. Introduction. - 2. Vitamins. - 3. Amino acids. - 4. Purines and pyrimidines. - 5. Perspectives. - COMPARATIVE AND DESCRIPTIVE OCEANOGRAPHY. - SECTION III. CURRENTS. - 10. EQUATORIAL CURRENT SYSTEMS / BY J. A. KNAUSS. - 1. Methods of study of ocean currents. - 2. Gross circulation pattern. - 3. A two-layer ocean - the thermocline. - 4. Zonal fiow-geostrophic currents. - 5. Meridional flow-upwelling. - 6. Conclusions and speculations. - 11. EASTERN BOUNDARY CURRENTS / BY W. S. WOOSTER AND J. L. REID, JR. - 1. Introduction. - 2. Common features of eastern boundary currents. - 3. Coastal upwelling. -4. Poleward eastern boundary currents. - 5. Biological implications. - 12. THE SOUTHERN OCEAN / BY G. E. R. DEACON. - 1. Topography. - 2. Oceanographic data. - 3. Wind zones. - 4. The water-masses. - 5. Climatology and zoogeography. - 6. Nutrient salts. - 7. Future needs. - 13. DEEP-CURRENT MEASUREMENTS USING NEUTRALLY BUOYANT FLOATS / BY G. H. VOLKMANN. - 1. Introduction. - 2. The pinger. - 3. Measurements. - 14. DROGUES AND NEUTRAL-BUOYANT FLOATS / BY J. A. KNAUSS. - 15. ESTUARIES / BY W. M. CAMERON AND D. W. PRITCHARD. - 1. Definition of estuaries. - 2. General considerations. - 3. Estuarine circulation patterns. - 4. Some variations on the estuarine sequence. - 5. Flushing in estuaries. - 6. Dynamics of estuaries. - 7. Kinematic description of the distribution of properties in an estuary. - 16. APPLICATIONS OF THE GYROPENDULUM / BY W. S. VON ARX. - 1. Introduction. - 2. The gyropendulum. - 3. The problem of time variations. - SECTION IV. BIOLOGICAL OCEANOGRAPHY. - 17. GEOGRAPHIC VARIATIONS IN.PRODUCTIVITY / BY J. H. RYTHER. - 1. Introduction. - 2. Incident radiation. - 3. Transparency. - 4. Nutrients. - 5. Latitudinal variations in the stability of surface water. - 6. Productivity of the major oceanic regions. - 7. Hydrodynamic features which influence productivity. - 8. Plankton production in coastal and inshore waters. - 9. Production of benthic plant communities. - 18. BIOLOGICAL SPECIES, WATER-MASSES AND CRRRENTS / BY M. W. JOHNSON AND E. BRINTON. - 1. Introduction. - 2. Water-masses and biological species. - 3. Water currents and biological species. - 19. COMMUNITIES OF ORGANISMS / BY E. W. FAGER. - 1. Introduction. - 2. Definition of community. - 3. Identification of communities. - 4. Community structure. - 5. Community function. - 6. Community theory. - 20. THEORY OF FOOD-CHAIN RELATIONS IN THE OCEAN / BY G. A. RILEY. - 1. Introduction. - 2. Mathematical models of plankton populations. - 3. Complex versus simple models. - 4. Prognosis for mathematical models. - 5. Higher elements of the food chain. - 21. FISHERY DYNAMICS - THEIR ANALYSIS AND INTERPRETATION / BY M. B. SCHAEFER AND R. J. H. BEVERTON. - 1. Introduction. - 2. The Beverton-Holt approach. - 3. The Schaefer approach. - 4. Concluding remarks. - SECTION V. OCEANOGRAPHICAL MISCELLANEA. - 22. SEASONAL CHANGES IN SEA-LEVEL / BY JUNE G. PATTULLO. - 1. Introduction. - 2. The observed seasonal variations. - 3. Factors influencing variations in sea-level. - 4. Summary. - 5. Conclusions. - 23. BATHYSCAPHS AND OTHER DEEP SUBMERSIBLES FOR OCEANOGRAPHIC RESEARCH / BY R. S. DIETZ. - 1. Introduction. - 2. Diving chambers. - 3. Bathyscaphs. - 4. Diving saucer. - 5. Buoyant-hulled deep ships or bathynauts. - 6. Deep-research vessel (D.R.V.). - 7. Remote underwater manipulator (RUM). - 8. Concluding remarks. - 24. DEEP-SEA ANCHORING AND MOORING / BY JOHN D. ISAACS. - 1. Introduction. - 2. Historical background. - 3. Problems of taut-mooring. - 4. Remarks on components of moorings. - 5. Mooring cables. - 6. The anchors. - 7. Fittings. - 8. Performance. - AUTHOR INDEX. - SUBJECT INDEX.

Note: CONTENTS: PHYSICAL OCEANOGRAPHY. - SECTION I. FUNDAMENTALS. - 1. PHYSICAL PROPERTIES OF SEA-WATER / BY N. P. FOFONOFF. - 1. The equilibrium thermodynamic state. - 2. Equation of state for sea-water. - 3. Entropy. - 4. Chemical potential difference. - 5. The non-equilibrium state. - 6. Other physical properties of sea-water. - 2. THE EQUATIONS OF MOTION OF SEA-WATER / BY CARL ECKART. - 1. Introduction. - 2. Thermodynamics. - 3. Hydrodynamics. - 4. The irreversible processes. - 5. Transformation of the equation. - 6. The zeroth approximation. - 7. The first approximation. - 8. Definitions related to convective motion. - 9. The field equations. - SECTION II. INTERCHANGE OF PROPERTIES BETWEEN SEA AND AIR. - 3. SMALL-SCALE INTERACTIONS / BY E. L. DEACON AND E. K. WEBB. - 1. General considerations of transfer. - 2. Momentum transfer and the wind-profile. - 3. Drag coefficients of the sea surface. - 4. Transfer of heat and water vapour. - 4. LARGE-SCALE INTERACTIONS / BY JOANNE S. MALKUS. - 1. Introduction. - 2. How the whole system works. - 3. Determination of air-sea fluxes. - 4. Climatology of energy exchange and the global heat and water budgets. - 5. Heat and water exchange and its role in tropical circulations. - 6. Large-scale momentum relations. - 7. Exchange mechanisms and fluctuations. - 8. Exchange fluctuations in mid-latitudes and long-period interaction anomalies. - 9. Concluding remarks. - 5. INSOLUBLES / BY R. W. REX AND E. D. GOLDBERG. - 1. Meteorology of transport. - 2. Eolian materials in marine sediments. - 6. SOLUBLES / BY A. H. WOODCOCK. - 7. GASES / BY R. REVELLE AND H. E. SUESS. - 1. Introduction. - 2. Oxygen and nitrogen. - 3. Rare gases. - 4. Carbon dioxide. - SECTION III. DYNAMICS OF OCEAN CURRENTS / BY N. P. FOFONOFF. - 1. Conservation equations for momentum and mass. - 2. Separation into steady and time-dependent motion. - 3. Magnitude of forces. - 4. Steady-state circulation. - 5. Steady inertial circulation. - 6. Convective circulation. - 7. Time-dependent motion. - SECTION IV. TRANSMISSION OF ENERGY WITHIN THE SEA. - 8. LIGHT / BY J. E. TYLER AND R. W. PREISENDORFER. - 1. Physical constructs. - 2. Instrumentation for the measurement of the underwater light field and the determination of the optical properties of the sea. - 3. Radiance distribution. - 4. Attenuation coefficient. - 5. Volume scattering functions and total scattering coefficient. - 6. Irradiance. - 7. Diffuse attenuation function and reflectance function. - 8. Scalar irradiance (spherical irradiance). - 9. Absorption coefficient. - 10. Path function. - 11. Data. - 12. Applications. - 13. List of symbols. - 9. UNDERWATER VISIBILITY / BY S. Q. DUNTLEY. - 1. Image transmission. - 2. Inherent contrast. - 3. Sighting range. - 10. LIGHT AND ANIMAL LIFE / BY G. L. CLARKE AND E. J. DENTON. - 11. OTHER ELECTROMAGNETIC RADIATION / BY L. N. LIEBERMANN. - 1. Introduction. - 2. Electromagnetic properties of sea-water. - 3. Propagation through sea-water. - 4. The effect of the sea-surface on electromagnetic propagation. - 5. Natural electromagnetic radiation or "noise" in the sea. - 12. SOUND IN THE SEA / BY P. VIGOUREUX and J. B. HERSEY. - 1. The nature of sound. - 2. Propagation of sound in water. - 3. Noise. - 4. Instruments and applications of sound to oceanography. - 13. SOUND SCATTERING BY MARINE ORGANISMS / BY J. B. HERSEY AND R. H. BACKUS. - 1. Introduction. - 2. Occurrence and description of scattering layers. - 3. Identification of sound scatterers. - 4. Sound-scattering theory. - 5. Sound-scattering observations. - 6. What is "the deep scattering layer"?. - 7. Ideas and miscellaneous observations. - 14. SOUND PRODUCTION BY MARINE ANIMALS / BY W. E. SCHEVILL, R. H. BACKUS, AND J. B. HERSEY. - 1. Introduction. - 2. History. - 3. Instrumentation. - 4. Identification of source. - 5. Purposeful and adventitious sounds. - 6. Sound-producing mechanisms. - 7. Spectra of sounds. - 8. Functions of sound. - 9. Hearing as related to sound production. - 10. Eliciting and suppressing marine animal sounds. - 11. Exploitation of marine animal sounds by the oceanographer. - SECTION V. WAVES. - 15. ANALYSIS AND STATISTICS / BY D. E. CARTWRIGHT. - 1. Introduction. - 2. Fundamental equations of wave motion. - 3. Statistical formulation. - 4. Properties of a wave system in terms of its directional energy spectrum. - 5. Estimating the directional energy spectrum. - 6. Waves recorded by a single detector. - 7. Spectral measurement. - 8. Second-order approximations to energy spectra. - 16. LONG-TERM VARIATIONS IN SEA-LEVEL / BY J. R. ROSSITER. - 1. Introduction. - 2. The determination of mean sea-level. - 3. Causes of variations in sea-level. - 4. The analysis of observations. - 5. Some geophysical implications of long-term variations in sea-level. - 6. Conclusion. - 17. SURGES / BY P. GROEN AND G. W. GROVES. - 1. Introduction. - 2. Description. - 3. Dynamics and forecasting. - 18. LONG OCEAN WAVES / BY W. H. MUNK. - 1. Introduction. - 2. The instruments. - 3. The spectrum. - 4. Surf beat. - 5. Shelf waves. - 6. Tsunamis. - 19. WIND WAVES / BY N. F. BARBER AND M. J. TUCKER. - 1. Kinematics of waves. - 2. The description of a complicated wave pattern: the wave spectrum. - 3. Theories of wave generation by wind. - 4. Wave prediction. - 5. Waves from distant storms. - 6. Waves approaching the shore. - 7. The surf zone. - 8. Ships and waves. - 9. Methods of observation and analysis-methods taking no account of direction of travel. - 10. Methods of observation and analysis - the directional power spectrum. - 20. MICROSEISMS / BY J. DARBYSHIRE. - 1. Relation between sea waves and microseisms. - 2. The nature of microseisms. - 3. Refraction of microseisms. - 4. Storm tracking and estimation of the direction of approach of microseisms. - 5. Estimation of direction from the nature of microseisms. - 6. Instruments. - 7. Other work. - 21. RIPPLES / BY C. S. COX. - 1. Spectrum and mean square slope. - 2. Effect of slicks. - 3. Shape of a rippled water surface. - 4. Growth of ripples. - 22. INTERNAL WAVES : Part I / BY E. C. LAFOND. - 1. Introduction. - 2. Measurements. - 3. Observed relations. - 22. INTERNAL WAVES : Part II / BY C. S. COX. - 4. Differential equations. - 5. Spectrum. - 6. Internal waves and turbulence. - 23. TIDES / BY W. HANSEN. - 1. Introduction. - 2. The hydrodynamic equations and their application to tidal problems. - 3. Tidal observation. - 4. Tidal charts. - 5. Classical theory. - 6. Numerical methods for ascef!.aining the tides and tidal currents. Boundary-value problems. - 7. The application of difference methods to initial-boundary problems. - 8. Numerical solutions of initial-boundary-value problems of tides in one and two dimensions. - 9. Internal tides. - SECTION VI. TURBULENCE / BY K. F. BOWDEN. - 1. General properties of turbulence. - 2. Turbulence in the sea. - 3. Turbulent fluctuations and turbulent transports. - 4. Vertical turbulence. - 5. Horizontal turbulence. - SECTION VII. THE PHYSICS OF SEA-ICE / BY E. R. POUNDER. - 1. Introduction. - 2. Mechanical properties. - 3. Thermal properties. - 4. Electrical properties. - 5. Growth and disintegration of an ice cover. - 6. Theory of sea-ice structure and properties. - AUTHOR INDEX. - SUBJECT INDEX.

Note: CONTENTS: SECTION I. GEOPHYSICAL EXPLORATION. - 1. ELEMENTARY THEORY OF SEISMIC REFRACTION AND REFLECTION MEASUREMENTS / BY J. I. EWING. - 1. Introduction. - 2. Reflected waves. - 3. Refracted waves. - 4. Computation of layer velocities and thicknesses. - 5. Shear waves and complex refracted waves. - 6. Some complications and deviations from simple theory. - 2. REFRACTION AND REFLECTION TECHNIQUES AND PROCEDURE / BY G.G. SHOR, JR. - 1. Introduction. - 2. Shooting techniques. - 3. Receiving techniques. - 4. Plan of operations. - 5. Miscellaneous variations. - 6. Reflection methods. - 3. SINGLE-SHIP SEISMIC REFRACTION SHOOTING / BY M. N. HILL. - 1. Introduction. - 2 . Instrumentation. - 3. Operation. - 4 . CONTINUOUS REFLECTION PROFILING / BY J. B. HERSEY. - 1. Introduction. - 2. Design. - 3. Operations at sea. - 4. Results. - 5. Interpretations. - 6. Geophysical measurements. - 7. Concluding remarks. - 5. THE UNCONSOLIDATED SEDIMENTS / BY J. I. EWING AND J. E. NAFE. - 1. Introduction. - 2. Evidence for gradients and low-velocity sediments. - 3. Variable angle reflections. - 4. Normal-incidence reflections. - 5. Summary. - 6. THE CRUSTAL ROCKS / BY R. W. RAITT. - 1. Introduction. - 2. Layer 2. - 3. Layer 3. - 4. Average oceanic crust. - 7. THE MANTLE ROCKS / BY J. I. EWING. - 1. Introduction. - 2. Compressional-wave measurements. - 3. Shear-wave measurements. - 4. Summary. - 8. EXPLORATION OF SUB-OCEANIC STRUCTURE BY THE USE OF SEISMIC SURFACE WAVES / BY J. OLIVER AND J. DORMAN. - 1. Introduction. - 2. The general nature of seismic surface waves. - 3. Evidence from mantle surface waves. - 4. Evidence from crustal surface waves. - 5. Evidence from short-period surface waves. - 9. GRAVITY AT SEA / BY J. LAMAR WORZEL AND J. C. HARRISON. - 1. Introduction. - 2. Methods and theory. - 3. Gravity observations and geological interpretations. - 10. THE MAGNETIC FIELD OVER THE OCEANS / BY E. C. BULLARD AND R. G. MASON. - 1. Historical. - 2. Measurement of the magnetic field at sea. - 3. General features of the field. - 4. Reduction of magnetic observations. - 5. The magnetic properties of submarine rocks. - 6. The magnetic surveys of the north-east Pacific. - 7. The continental shelves. - 8. Seamounts and mid-ocean ridges. - 9. The deep trenches. - 11 . THE FLOW OF HEAT THROUGH THE FLOOR OF THE OCEAN / BY E. C. BULLARD. - 1. Method. - 2. The temperature probe. - 3. The thermal properties of sediments. - 4. The results of heat-flow measurements. - 5. Future work. - SECTION II . TOPOGRAPHY AND STRUCTURE. - 12. TOPOGRAPHY OF THE DEEP-SEA FLOOR / BY BRUCE C. HEEZEN AND H. W. MENARD. - 1 . Introduction. - 2 . Outline of submarine topography. - 3. Summary of submarine topographic forms. - 13. CONTINENTAL SHELF AND SLOPE (CONTINENTAL MARGIN) / BY A. GUILCHER. - 1. Definitions. - 2. Topography of the continental shelf. - 3. Topography of the continental slope. - 4. Structure and origins of the continental margins. - 5. Conclusion. - 14. ABYSSAL PLAINS / BY BRUCE C. HEEZEN AND A. S. LAUGHTON. - 1. Introduction. - 2. Regional description. - 3. Trench abyssal plains. - 4. Archipelagic plains. - 5. Abyssal gaps, interplain channels, mid-ocean canyons and deep-sea channels. - 6. Sediments on the abyssal plains. - 7. Geophysical characteristics. - 8. Theories of the origin of the abyssal plains. - 15. OCEANIC ISLANDS, SEAMOUNTS, GUYOTS AND ATOLLS / BY H. W. MENARD AND H. S. LADD. - 1. Introduction. - 2. Oceanic islands. - 3. Seamounts. - 4. Guyots. - 5. Atolls. - 6. Submerged atolls. - 7. Oceanic volcanoes in geological time. - 8. Importance of islands and seamounts. - 16. THE MID-OCEANIC RIDGE / BY BRUCE C. HEEZEN AND MAURICE EWING. - 1. Introduction. - 2. North Atlantic. - 3. South Atlantic. - 4. Indian Ocean. - 5. Indian and South Pacific Oceans. - 6. Iceland and the Norwegian Sea. - 7. Arctic Basin. - 8. Crustal structure. - 9. Origin. - 17. TRENCHES / BY R. L. FISHER AND H. H. HESS. - 1. Previous work. - 2. Topography of trenches. - 3. Structure of trenches. - 18. MICROTOPOGRAPHY / BY A. S. LAUGHTON. - 1. Introduction. - 2. Classification of microtopographic features. - 19. UNDERWATER PHOTOGRAPHY / BY H. E. EDGERTON. - 1. Introduction. - 2. Camera details. - 3. Cables and winches for cameras. - 20. SUBMARINE CANYONS / BY F. P. SHEPARD. - 1. Introduction. - 2. Classification of submarine valleys. - 3. Canyon descriptions. - 4. East coast U.S. (New England type) canyons. - 5. Trough-shaped valleys. - 6. Delta foreset-slope gullies. - 7. Shallow straight-walled valleys of submarine escarpments. - 8. Origin of submarine canyons. - 9. Subaerial erosion. - 10. Pleistocene canyon cutting by turbidity currents. - SECTION III. SEDIMENTATION. - 21. BEACH AND NEARSHORE PROCESSES. - PART I. MECHANICS OF MARINE SEDIMENTATION / BY R. A. BAGNOLD. - 1. Definition, origin and relevant physical properties. - 2. Transport during fall through the sea. - 3. Transport of sediment over the sea bed. - 4. Transport rate and fluid "power". - 5. Auto-suspension of sediment: turbidity currents , etc. - 6. Wave drift. - 7. Threshold of bed disturbance by fluid action. - PART II. LITTORAL PROCESSES / BY D. L. INMAN AND R. A. BAGNOLD. - 8. Introduction. - 9. Littoral profile: two-dimensional case. - 10. Migration of sand grains by wave action. - 11. Littoral processes: three-dimensional case. - 12. Discussion. - 22. SHALLOW-WATER CARBONATE SEDIMENTS / BY R. N. GINSBURG, R. MICHAEL LLOYD, K. W. STOCKMAN AND J. S. MCCALLUM. - 1. Introduction. - 2. Types of skeletal particles. - 3. Skeletal particles in sediments. - 4. Distribution of skeletal particles. - 5. Discussion of the distribution of skeletal particles. - 6. Non-skeletal particles. - 7. Distribution of non-skeletal particles. - 23. BASIN SEDIMENTATION AND DIAGENESIS / BY I. R. KAPLAN AND S. C. RITTENBERG. - 1. Introduction. - 2. Physical aspects of sedimentation. - 3. Diagenesis in sediments. - 4. Isotopic studies related to biological processes in sediments. - 5. Special problems. - 24. ESTUARIES, DELTAS, SHELF, SLOPE / BY A. GUILCHER. - 1. Estuaries, tidal marshes and flats, and deltas. - 2. Continental shelf. - 3. Continental slope. - 25. PELAGIC SEDIMENTS / BY G. ARRHENIUS. - 1. Concept of pelagic sedimentation. - 2. Composition. - 3. Productivity control of pelagic sedimentation. - 4. Physical stratification. - 5. Topographic and tectonic control of sedimentation. - 26. CLAY-MINERAL DISTRIBUTIONS IN THE PACIFIC OCEAN / BY J. J. GRIFFIN AND E. D. GOLDBERG. - 1. Introduction. - 2. The clay minerals. - 3. Surface distribution of clay minerals. - 4. Vertical distribution. - 5. Summary. - 27. TURBIDITY CURRENTS / BY BRUCE C. HEEZEN. - 1. Early views. - 2. Full-scale experiment. - 3. Alternative explanations. - 4. Physiographic evidence. - 5. Sediments. - 6. Requirements of turbidity currents. - 7. Tectonic significance of turbidity currents. - 8. Biological significance of turbidity currents. - 9. Other processes of deep-sea erosion and transportation. - 10. Conclusion. - 28. ORGANIC TRANSPORTATION OF MARINE SEDIMENTS / BY K. O. EMERY. - 1. Introduction. - 2. Kelp. - 3. Driftwood . - 4. Sea mammals. - 5. Fishes. - 6. Birds. - 7. Invertebrates. - 8. Comparison with inorganic transporting agents. - 9. Criteria for recognition of rafting agent. - 29. PHYSICAL PROPERTIES OF MARINE SEDIMENTS / BY J. E. NAFE AND C. L. DRAKE. - 1. Introduction. - 2. Relationships among observables. - 3. Methods of measurement. - 4. Summary of results. - 5. Conclusions. - 30. AGE DETERMINATION IN SEDIMENTS BY NATURAL RADIOACTIVITY / BY F. F. KOCZY. - 1. Introduction. - 2. Theoretical considerations. - 3. Geochemical considerations. - 4. Practical methods of age determination. - 5. Rate of sedimentation. - 31. CROSS-CORRELATION OF DEEP-SEA SEDIMENT CORES AND DETERMINATION OF RELATIVE RATES OF SEDIMENTATION BY MICRO-PALEONTOLOGICAL TECHNIQUES / BY D. B. ERICSON. - 1. Introduction. - 2. Methods of correlation. - 3. Time-equivalence of the faunal zones. - 4. Some example