215 



The only indication of a northward littoral drift was 

 given by a single recovery from the effluent outfall station 

 (4255). From here one card was found at Trancas Beach north 

 of Point Dume 18 days after release. All others from this 

 station made their way to shore between Hermosa Beach and 

 Flat Rock Point within 2^ to 4 days. Because of the long 

 delay in recovery of the single card, its path was uncertain 

 and likely it represented a change in current pattern 

 occurring some time after the cruise of May 23-24. 



The maximum velocity to the shore within the bay was 

 lower than on the previous cruise, about 5.2 miles per day 

 (0.22 MPH). 

 Cruise of June 19 , 1956 



On this date 525 cards were dropped in the usual pattern 

 and of these 279 (537o) were returned. This was to have been 

 the last scheduled drift card drop under the contract. 



From the 7 and 5 mile stations (Figs. 103 and 104), cards 

 drifted toward the shore with perhaps a suggestion of a slight 

 northerly component. However, those returns, together with 

 the ones from the 3 mile stations (Fig, 105), give strong 

 evidence of both a divergence in the central inshore portion 

 of the bay and a split into two branches, one running north 

 and the other south. Returns from Station 4313 (Fig. 103) 

 suggest either a large counter-clockwise gyral in the 

 northern portion of the bay, or a drift to sea west past 

 Point Dume and a subsequent delayed return into the bay. 



Moderate to high velocities were encountered on this 

 cruise from several stations, including those located at the 



