LIST OF TABLES 



Wo . Page 



1. Surface water temperatures -monthly and annual means 



for 1956 5 



2. Grand Harbour 9 



3. Portland Lightship 13 



k. Boston Lightship 27 



5. Georges Shoal 35 



6. Nantucket Lightship 39 



7. Woods Hole 52 



6. Buzzards Lightship 5^ 



9. Kingston 57 



10. Ambrose Lightship 60 



11. Bamegat Lightship 67 



12. Five Fathom Bank Lightship 76 



13- Winter Quarter Lightship 85 



Ik. Chesapeake Lightship 9^ 



15 . Diamond Shoals Lightship IO3 



16. Frying Pein Shoals Lightship II8 



17. Savannah Lightship 126 



