Illustrations 
Trochoidal and sinusoidal waves . 
Island bending swells . 
Waves produced by upthrust af bers é 
Seiches of San Francisco Bay . 
Ship’s wake . 
Wake of a PT . 
Wake of a cruiser . 
Internal waves 
Bathymetric chart 
Ocean depths . 
Ocean bottom . 
Pelagic sediments . 
Plimsoll marks . 
Phases of moon and tides 
Cotidal lines 
Glacier . 
Sludge ice 
Glaze ice 
Ocean currents 
Rock shores 
Beach profile 
Beach particles 
Coral atoll . 
Birth of planets 
Reflection and refraction 
Dispersion 
Xlii 
