PHYSICAL OCEANOGRAPHY OF THE GULF OF MAINE 



881 



this group of bottles went out around Nantucket.^* Bottle No. 536 journeyed to 

 the south shore of Marthas Vineyard (85 miles) at a rate of at least 4 miles per day. 



f-o £'n^/i?n<^. 



fo Canary /^/an^s 



&.Ne.w£n^/anci 



Fig. 174.— Assumed drifts of representative bottles recovered from line B, set out off Cape Cod, July 6 to 8, 1922. 



of release. 



I, place 



The mid-section of line B (lat. 40° 50' to lat. 41° 30') was clearly involved in this 

 same set, veering clockwise around Nantucket Shoals, because 50 of these bottles out 

 of a total of 103 were picked up along the shores of southern New England, from 



"s The assumed routes for this group of bottles are laid down on the chart without reference to Nantucket Shoals. Actually 

 however, the complex tidal currents among these banks and through the channels between them must give a very circuitous 

 route to any flotsam in that region. 



