CONTENTS 
Introduction. . . . « e e 
Commentary. . - »« » « « « 
Surface temperature . 
Bottom temperature. .. . 
Grand Harbour, Grand Manan. 
Portland Lightship. . 
Boston Lightship. .. 
Georges Shoal, Texas Tower #2 
Nantucket Lightship . 
e e e@ 
Woods Hole, Massachusetts . 
Buzzards Lightship. . 
Kingston, Rhode Island. . . 
Ambrose Lightship. . 
Barnegat Lightship. . 
Five Fathom Bank Lightship. 
Winter Quarter Lightship. . 
Chesapeake Lightship. 
Diamond Shoals Lightship. . 
Frying Pan Shoals Lightship 
Savannsh Lightship. . 
Literature cited. ... . 
107 
123 
