TABLE OF CONTENTS 



Page 



Chapter I Scope and Present Problems of Oceanography 1 



I Definition and General Scope 1 



II Divisions of Oceanography 1 



A . Submarine Geology ^ 



1 . Submarine Topography 2 



2. Submarine Sedimentation 6 



3 . Submarine Dynami cs 15 



3. Physics of the Ocean 1'^ 



1 . Temperature and Salinity 18 



2. Circulation 24 



3 . Penetration of Light 38 



C. Chemical Aspects of Oceanography , 38 



D . Life in the Sea 42 



1. Oceanic Biology ^3 



2 . Marine Physiology 50 



3. Marine Bacteriology 58 



4. Physical, Chemical and Biological Unity 



in the Sea 65 



E. Oceanography as an Aid to Meteorology GSa 



Chapter II Economic Value of Oceanographic 



Investigations 67 



I The Sea Fisheries 67 



II Utilization of Other Marine Products 80 



III Navigation 81 



A. Studies of Tidal and Other Currents 81 



B . Soundings 84 



IV Currents as Affecting Harbor Construction and the 



Protection of Shore Property 85 



V Soundings in Connection with the La^'^ing of S'ubmarine 



Cables 86 



VI Oceanograph^r and Seasonal Weathsr Forecasts 87 



