LIST OF COLOUllED ILLUSTRATIONS. 



SECTION I. 



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Straits of Dover 14 



Submarine Plateau of the British Isles 15 



North Atlantic Ocean 16 



Antarctic Land 46 



Current of the Gulf-stream 64 



Oceanic Currents 100 



St Michael's Bay 110 



Fjords of Norway 132 



Depth of the Zuyder Zee 161 



Headlands of North Carolina 176 



Dunes of La Teste 208 



Rains of Volcanic Ashes 246 



Range of the Hurricanes of August and September, 1848 .... 289 



