TABLE 2 

 TRENDS AND VARIABILITY 

 STATION LIST 



'^ 1927-1968, Portsmouth Navy Yard, NH; 1969-1972, Back Channel, ME; 

 1973-1980, Seavey Island (Berth 2), ME. 



^ 1893-1920, Ft. Hamilton; 1921-1980, The Battery. 



^ Norfolk, VA. 



Savannah, GA. 



19 



