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G. Hartwig. The Sea and Its Living Wonders
The Sea and Its Living Wonders
Table of Contents
PART I. THE PHYSICAL GEOGRAPHY OF THE SEA
CHAPTER I. THE MAGNITUDE OF THE SEA
CHAPTER II. THE WAVES OF THE OCEAN
CHAPTER III. THE TIDES
CHAPTER IV. MARINE CAVES
CHAPTER V. OCEAN CURRENTS
CHAPTER VI. THE AËRIAL AND TERRESTRIAL MIGRATIONS OF THE WATERS
CHAPTER VII. MARINE CONSTRUCTIONS
PART II. THE INHABITANTS OF THE SEA. CHAPTER VIII. THE CETACEANS
CHAPTER IX. SEALS AND WALRUSES
CHAPTER X. SEA-BIRDS
CHAPTER XI. THE REPTILES OF THE OCEAN
CHAPTER XII. THE MARINE FISHES
CHAPTER XIII. CRUSTACEA. CRABS—LOBSTERS
CHAPTER XIV. MARINE ANNELIDES
CHAPTER XV. MOLLUSCS
CHAPTER XVI. ECHINODERMATA. STAR-FISHES, SEA-URCHINS, AND SEA-CUCUMBERS
CHAPTER XVII. CŒLENTERATA. POLYPS AND JELLY-FISHES
CHAPTER XVIII. PROTOZOA
CHAPTER XIX. MARINE PLANTS
CHAPTER XX. THE GEOGRAPHICAL DISTRIBUTION OF MARINE LIFE
CHAPTER XXI. THE PHOSPHORESCENCE OF THE SEA
CHAPTER XXII. THE PRIMITIVE OCEAN
PART III. THE PROGRESS OF MARITIME DISCOVERY. CHAPTER XXIII
CHAPTER XXIV
CHAPTER XXV
CHAPTER XXVI
CHAPTER XXVII
LIST OF ILLUSTRATIONS
PART I. THE PHYSICAL GEOGRAPHY OF THE SEA
CHAPTER I. THE MAGNITUDE OF THE SEA
CHAP. II
CHAP. III
CHAP. IV
CHAP. V
CHAP. VI
CHAP. VII
PART II
CHAP. VIII
CHAP. IX
CHAP. X
CHAP. XI
CHAP. XII
CHAP. XIII
CHAP. XIV
CHAP. XV
CHAP. XVI
CHAP. XVII
CHAP. XVIII
CHAP. XIX
CHAP. XX
CHAP. XXI
CHAP. XXII
PART III. THE PROGRESS OF MARITIME DISCOVERY
CHAP. XXIII
CHAP. XXIV
CHAP. XXV
CHAP. XXVI
CHAP. XXVII
INDEX
Отрывок из книги
G. Hartwig
A Popular Account of the Marvels of the Deep and of the Progress of Martime Discovery from the Earliest Ages to the Present Time
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INDEX
The circumstance of ice being lighter than water also contributes to the habitability of our earth. Ice is a bad conductor of heat; consequently it shields the subjacent waters from the influence of frost, and prevents its penetrating to considerable depths. If ice had been heavier than water, the sea-bottom, in higher latitudes, would have been covered with solid crystal at the very beginning of the cold season; and during the whole length of the polar winter, the perpetually consolidating surface-waters would have been constantly precipitated, till finally the whole sea, far within the present temperate zone, would have formed one solid mass of ice. The sun would have been as powerless to melt this prodigious body, as it is to dissolve the glaciers of the Alps, and the cold radiating from its surface would have rendered all the neighbouring lands uninhabitable.
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