COMPOSITION OF THE SEA—ITS SALTS—POWER AND USES OF WATER—ADVANTAGE AND DISADVANTAGE OF SALTS—ANECDOTE—DEEP-SEA SOUNDINGS—BROOKE'S APPARATUS—IMPORTANCE OF THE SEARCH AFTER TRUTH—ILLUSTRATIONS—DISCOVERIES RESULTING FROM DEEP-SEA SOUNDINGS
WAVES—SYSTEM IN ALL THINGS—VALUE OF SCIENTIFIC KNOWLEDGE—ILLUSTRATIVE ANECDOTE—HEIGHT OF WAVES—DR. SCORESBY—SIZE, VELOCITY, AND AWFUL POWER OF WAVES—ANECDOTES REGARDING THEM—TIDES
THE GULF STREAM—ITS NATURE—CAUSE—ILLUSTRATION—EFFECT OF SMALL POWERS UNITED—ADVENTURES OF A PARTICLE OF WATER—EFFECT OF GULF STREAM ON CLIMATE—ITS COURSE—INFLUENCE ON NAVIGATION—SARGASSO SEA—SCIENTIFIC EFFORTS OF PRESENT DAY—WIND AND CURRENT CHARTS—EFFECTS ON COMMERCE—CAUSE OF STORMS—INFLUENCE OF GULF STREAM ON MARINE ANIMALS
THE ATMOSPHERIC OCEAN—ORDER IN ITS FLOW—OFFICES OF THE ATMOSPHERE—DANGERS LESSENED BY SCIENCE—CURRENTS OF ATMOSPHERE—CAUSE OF WIND—TWO GREAT CURRENTS—DISTURBING INFLUENCES—CALMS—VARIABLE WINDS—CAUSES THEREOF—LOCAL CAUSES OF DISTURBANCE—GULF STREAM'S INFLUENCE—THE WINDS MAPPED OUT—A SUPPOSED CASE
TRADE-WINDS—STORMS—THEIR EFFECTS—MONSOONS—THEIR VALUE—LAND AND SEA BREEZES—EXPERIMENTS—HURRICANES—THOSE OF 1831—ROTATORY STORMS—THEIR TERRIBLE EFFECTS—CHINA SEAS—HURRICANE IN 1837—WHIRLWINDS—WEIGHT OF ATMOSPHERE—VALUE OF ATMOSPHERIC CIRCULATION—HEIGH OF ATMOSPHERE
ICE AN AGENT IN TRANSPORTING BOULDERS—HOW THIS COMES ABOUT—DR. KANE'S OBSERVATIONS—LONG NIGHT IN WINTER AND LONG DAY IN SUMMER—EXTREME DARKNESS—INFLUENCE ON DOGS—INTENSE COLD—EFFECT ON THE SEA
QUESTION OF AN OPEN SEA ROUND THE POLES—UPPER AND UNDER CURRENTS OF THE OCEAN—CAUSE THEREOF—HABITS OF THE WHALE AS BEARING ON THE QUESTION—DR. KANE'S DISCOVERY OF AN OPEN SEA IN THE FAR NORTH—NOTES ON THE EXPEDITION—A BEAR-HUNT
MISCELLANEOUS PHENOMENA OF THE POLAR SEAS AND REGIONS—THE AURORA BOREALIS—ICE-BLINK—OPTICAL ILLUSIONS—ANECDOTE OF SCORESBY—HALOS—CORONA—MOCK SUNS—REFRACTION—FROSTS