XVl CONTENTS 
motion—Depth of the undulation——Local hues of water— 
Sea-floors and their influence on coloring—Deep-sea 
color—Gulf and bay colorings—Mineral hues in water— 
Color pateches—Sea sawdust—Transparency of sea-color 
—Reflection from surface—The smooth swell on the 
Southern scas—Northern waters-—-Sky effects at sea-— 
Sunlight on the waves—Moonlight on the waves—Cloud 
shadows upon water—Colored shadows again—Cloudy 
days at sea—The emerald-greens of storm—Atlantic and 
tropical waves—Following the equator..........-.- 113 
Cuarter VII. Along Shore.—On the beach—The 
coast-wave—Why waves break—Dancing jets under a 
cliff—The size of coast-waves—And their power—-Forced 
and wedged waves—-The beach-comber—W ater-mirrors 
on the beach—The undulation again—The rising of the 
sea—Thrust of the waves—Curves of sand beaches— 
Wave action on the rocks—Cliff undermining—Rock 
forms made by water—Pulpits, bridges, and caverns— 
Formation of sand-dunes—Sea barriers—Bars, lagoons, 
and marshes—The tides—Ebb and flood tides—The bare 
shores—Coast lines--Color and light upon the shore— 
Twilight colorings—Moonlight on the sea—The coast in 
storm—The whipped waves—The uses of storm—Without 
WG BOs caste she cere tee cane ores uen fsientsd Baneterse ease DES 134 
Coarter VIII. Running Waters.—The river at the 
sea—Mecting the ocean—The river’s path—The Plain 
Track—Through the meadows—The river’s basin—The 
sluggish flow--The Valley Track—The river island— 
Hurrying waters—New movement—-The wear of water— 
The sculptor of the land—Valley and mountain carvings 
— Oscillations of the stream—Lines of the banks and the 
water—Color on the river—With snow and under ice— 
