CONTENTS 



SEA AND LAND 



PACE 



How Energy Comes to and Acts upon the Earth's Surface. — The Work of Water on 

 the Coasts. — Facts to be Noted on a Coast-Line. — Land constantly Wearing 

 away and Sea-Floor Receiving Sediments. — Slight Effect of Sea on Rocky Shore. 

 — Effect of Shore Currents. — Trap-Dykes. — The Great York.shire Wave-Terrace. — 

 Sea-Caves. — Frost and Ice. — Organic Life. — Elevated and Submerged Beaches. . i 



SEA-BEACHES 



Various Divisions of Shore-Line. — Symmetry of Sea-Beaches. — Action of Surf. — Rate 

 of Wear of Detritus. — Action of Coast Currents. — Sand Dunes. — Pocket-Beaches. 

 — Action of Sea-Weeds. — Straight Beaches. — Continental Shelf. — Action of Tides 

 and Waves. — Variations in Level of Shores. — Formation of Lagoons. — Marine 

 Marshes : their Agricultural Value. — Endurance of Sand : Effect in Protecting 

 the Continents 3S 



THE DEPTHS OF THE SEA 



Modern Interest in the Deep .Sea: Conditions of Inquiry. — Shape of Ocean-Floors: 

 Absence of Mountains and Valleys. — Coral Reefs. — Continental Shelf. — Perma- 

 nence of Continents. — Plants and Animals of the Sea. — Conditions of Marine 

 Life : Absence of Seasonal Changes. — Marine Communities. — Abysmal Life. — 

 Detrital Accumulations. — Fate of Sunken Ships 



ICEBERGS 



Effect of E.Kpansion of Water in Freezing. — Classes of Ice-Fields. — Origin of Ice- 

 Floes. — Migrations of Ice-Floes.— Origin of Icebergs.— The Greenland Glacier. 

 — Annual Product of Icebergs ; their Voyages ; their Effect on the Ocean ; the 

 Order of their Movements ; their Decay ; iheir General Influence on Climate. — 

 Transportation of Rock Debris by Icebergs.— Effect of Ice on Shores.— Iceberg 

 "Work in Former Geological Periods. — Dangers to Ships from Colli>ion with 

 Icebergs ^ ' 5 



