Table 3 (Cont'd) 



PORTLAND LIGHTSHIP U3°31.6'N. 70°05.5'W. 



June 19^8 



Depth of water - 15O feet 



150' 



31.67 



32.19 



31.12 



31.58 



Mean 



50.1+ 1+6.9 1+2.2 38.8 38.2 



30.32 31.61+ 



12 



