was completed at about the 54th parallel on the early mornmg of 21 

 April. The Evergreen then returned to Argentia, arriving there on 

 23 April. During the survey it was necessary to heave to on account 

 of weather twice, once for 13}^ hours on 12 to 13 April, and again for 

 14 hours on 17 to 18 April. 



The Evergreen departed from Argentia on the afternoon of 28 

 April to begin the second survey. While the first survey covered 

 many aspects of interest it could not also cover the early season cur- 

 rent pattern in the area immediately east and south of the Grand 

 Banks. The second survey was designed to get this, in addition to a 

 small area of overlap with the first survey between 47° and 48° N., 

 and to extend the surveyed area seaward far enough to delineate the 

 outer boundary of Atlantic Current water in the sector southeastward 

 of the Grand Banks. To accomplish this 100 stations were occupied 

 begmmng with station 4741, between noon on 29 April and the morning 

 of 12 May. The work of collection progressed from north toward 

 south and was not interrupted by the weather. Upon conclusion of 

 this work the Evergreen proceeded to 41°43' N., 50°05' W., where a 

 carboy of surface water was collected for subsequent use as a sub- 

 standard of salinity. The Evergreen then proceeded to Boston, ar- 

 riving there on the evening of 15 May. 



Toward the end of May the presence of some bergs in the Labra- 

 dor Current just north of the Grand Banks made it seem desirable to 

 get another current survey of the Grand Banks region. The Evergreen 

 therefore returned to Argentia and departed there on the morning of 

 3 June to repeat the pattern of the second survey. The work of col- 

 lection began at noon on 4 June with station 4841, and progressing 

 from north toward south, was completed at station 4940 early on the 

 afternoon of 16 June. It was not necessary to heave to on account of 

 gales at any time during the survey, although the average speed was 

 reduced by the high percentage (40 percent) of fog. Upon completion 

 of the survey the Evergreen proceeded to Boston with arrival there 

 on the evening of 19 June. 



A postseason cruise was made to repeat the occupation of the Bona- 

 vista triangle and the section across the Labrador Sea from South 

 Wolf Island, Labrador, to Cape Farewell, Greenland. This was ac- 

 complished with the occupation of 54 stations. The Evergreen de- 

 parted from Boston on 7 July and from Argentia on 1 1 July and the 

 work of collection of data at the triangle began on the evening of 12 

 July and was completed 3 days later. Work on the section across 

 the Labrador Sea began on the early morning of 17 July and was con- 

 cluded within the outer edge of a coastal belt of ice 12^ miles off Cape 

 Farewell on the evening of 20 July. No gales were encountered. 

 The Evergreen then proceeded via Argentia to Woods Hole where 

 oceanographic equipment and personnel were discharged on the eve- 

 ning of 27 July to conclude the field work for 1952. 



32 



