LIST OF TABLES 



No. Page 



1. Surface water temperature - monthly and annual means for 1958.... vi 



2. Grand Harbour, Grand Manan 5 



3. Portland Lightship 6 



4. Boston Lightship 20 



5. Georges Shoal, Texas Tower #2 27 



6. Nantucket Shoals, Texas Tower #3 30 



7 . Nantucket Lightship 32 



8. Woods Hole, Massachusetts 45 



9 . Buzzards Lightship 47 



10. Ambrose Lightship 50 



11. Texas Tower #4 (off New York) 57 



1 2 . Barnegat Lightship 60 



13. Five Fathom Bank Lightship 68 



14 . Winter Quarter Lightship 76 



15. Chesapeake Lightship 84 



16. Diamond Shoals Lightship 92 



17. Frying Pan Shoals Lightship 106 



18 . Savannah Lightship 113 



