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For the purpose of making a second current survey the General 

 Greene departed from St. John's on April 26. As anticipated from 

 the previous survey, ice had been reported drifting westward of the 

 Tail of the Grand Banks and therefore it was considered advisable 

 to include this region, about as far west as longitude 52° W., in the 

 second survey. In order to cover this area, the survey could not 

 extend farther north than about latitude 46° N., on the eastern edge 

 of the Banks. 



Accordingly, the work of collection was begun at station 2591 located 

 at 46°27' N., 48°56' W., and progressed from north towards south. 

 No considerable interruption to the work was experienced, and col- 

 lection of data was completed at station 2649 at 43°36' N., 51°28' W., 

 on May 7, a total of 59 stations having been occupied. The resulting 

 current map was then constructed, and although it was completed 

 11 hours after the last station, it could not be delivered until after 

 the Tahoe could be contacted on the morning of May 8. After the 

 current map had been delivered aboard the patrol cutter, the General 

 Greene proceeded to St. John's, arriving there on May 9. 



The General Greene departed from St. John's on May 23 to make 

 a third current survey of the Grand Banks region. The ice distribu- 

 tion indicated the desirability of current information from the region 

 between Flemish Cap and the Grand Banks, and as the previous sur- 

 vey showed the Labrador Current extending westward of the Tail of 

 the Grand Banks, the desirability of information from this area was 

 also indicated. The survey was planned, therefore, to extend from 

 about latitude 47° N., to and somewhat westward of the Tail. Advice 

 had also been received that during the summer concerted investiga- 

 tions of the Atlantic current northwest of the Azores would be under- 

 taken by other vessels. As the circulation in the North Atlantic has 

 much to do with ice movements in the vicinity of the steamer lanes 

 and is believed to have an even greater effect on the quantity of ice 

 to drift into menacing positions it seemed worth w^hile to extend the 

 section running south from the Tail of the Banks sufficiently to cross 

 the Gulf Stream so that this section might ultimately be studied in 

 connection with conditions prevailing the same year farther eastward. 

 With these considerations in mind the work of collection of data was 

 begun at station 2650 located at 47°09' N., 48°38' W., the survey 

 progressing without incident from north towards south. The work 

 of collection of data was completed at station 2731 at 42°00' N., 

 50°56' W., on June 6, 82 stations having been occupied. The result- 

 ing current map was then constructed and delivered aboard the Tahoe 

 13 hours after the station work had been completed. The General 

 Greene then returned to St. John's, where she arrived on June 8. 



On June 20 the General Greene departed from St. John's to make a 

 fourth current survey. In order to satisfy a request for immediate 



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