CONTENTS 



Page 



Abstract 1 



Introduction 1 



Commentary, figures and data 6 



Grand Harbour, Grand Manan b 



Portland Lightship 11 



Boston Lightship 26 



Georges Shoal, Texas Tower #2 3J4. 



Nantucket Lightship ■. 37 



Woods Hole, Massachusetts 5I 



Buzzards Lightship 53 



?:ingston, Rhode Island 56 



Ambrose Lightship 58 



Bamegat Lightship 66 



Five Fathom Bank Lightship 74 



Winter Quarter Lightship 83 



Chesapeake Lightship 92 



Diamond Shoals Lightship , loi 



Frying Pan Shoals Lightship .- II6 



Savannah Lightship 125 



Literature Cited I32 



