Table 3 (cont'd) 

 PORTLAND LIGHTSHIP 43°31.6'N. 70°05.5'W. 



April 1959 

 Temperature °F 



Depth of water - 150 feet 



Salinity °/ ( 



oo 



150' 



32.34 



32.66 



31.31 



32.39 



Mean 



41.1 39.0 38.3 38.0 38.0 



30.77 32.18 



12 



