.. V. 



\ 0.1 



TIDAL CURRENTS 





,' Red arrows and figures denote the observed directiort 



; and average velocUu in knots of the current at time stated 



at bottom of chart. 



' Predicted times of high and low waters for Boston 



'\ are given in the Tide Tables, Atlantic Ocean, published 



""- annually by the U. S. Coast and Geodetic Survey . 



)W 



"\V. 



, 20 /»»>'*' 

 iOftttho/ns , 



"■-/ 





W 



1> ' -i)^^. ■■■/^'S, 



I 



ci' 



\' 





V/ 



■,i* j .so/*"""" \ / 1 . 



i 





,J0 '*' 





0.6 / 



Fig. 31 Currents 8 hours after Greenwich transit ll hour 55 minutes before low water at Boston). 



