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 y/3 30 



7 . Nantucket Lightship 32 



8. Woods H3le, Massachusetts 45 



9 . Buzzards Lightship , 47 



10. Ambrose Lightship 50 



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



12. Barnegat Lightship 60 



13. Five Fathom Bank Lightship 68 



14 . Winter Quarter Lightship 75 



15. Chesapeake Lightship $4 



16. Diamond Shoals Lightship 92 



17. Frying Pan Shoals Lightship 106 



18 . Savannah Lightship 113 



