CONTENTS 



Chapter One 



HISTORICAL INTRODUCTION 



Early Ideas and Explorations — The Period 1700-1850 — 

 The Last Half of the Nineteenth Century — The Twentieth 

 Century 



Chapter Two 



METHODS OF OBSERVATION 12 



Instruments Used in Gulf Stream Work — Loran 



Chapter Three 



THE GEOSTROPHIC RELATIONSHIP 16 



The Balance of Forces in the Gulf Stream — Schematic 

 Density and Pressure Fields Across the Gulf Stream 



Chapter Four 



LARGE-SCALE FEATURES OF THE NORTH 



ATLANTIC CIRCULATION 22 



Surface Features — The Distribution of Properties with 

 depth 



