and more were reported to be along the proposed course. Fog 

 patches and a fog bank also were visible in that direction and as the 

 radar was not functioning reliably, a position off Cape Bonavista 

 was maintained until daylight after which operations were resumed. 

 The work of collection of data then progressed to completion on the 

 evening of 30 May at station 4174 located near the begimiing point 

 of the triangle. A course was then laid for Argentia where the 

 Erergr€(n arrived on the late afternoon of 31 May. 



The Evergreen departed Argentia on the afternoon of 6 June to 

 make a fourth current survey, wnth the area to be investigated in- 

 cluding the waters over and immediately seaward of the southern 

 and eastern slopes of the Grand Banks. It was also planned to ex- 

 tend section W (running southward from the southern end of the 

 Grand Banks) sufficiently to cross the Labrador Current, the mixed 

 w^ater, and the Atlantic Current. The cruise began with an explora- 

 tory run southward along section W, during which surface currents 

 were measured with a von Arx current meter and the thermal char- 

 acteristics of the upper 200 to 300 meters were examined by means 

 of casts of a bathythermograph every half hour. 



The work of collection of the usual subsurface temperature and 

 salinity data began on the morning of 9 June at station 4175 located 

 at 38°00' N., 50°12' W., and continued northward along section W 

 to the Grand Banks, after which the work progressed from the 

 southwestern slope of the banks eastward around the Tail of The 

 Banks and thence northward as far as and including section T. The 

 final station of the survey, station 4238, located at 46°17' N., 49°00' 

 W., was completed on the morning of 20 June. A course w^as then 

 laid for Argentia with arrival there on 21 June. 



The International Ice Patrol was discontinued for the season on 26 

 June for lack of ice in a position of potential hazard to effective 

 shipping lanes. In order to avoid being barred by drift ice from the 

 inshore area in the vicinity of Cape Farewell it seemed undesirable to 

 begin the postseason oceanographic cruise until after 10 July. The 

 w^ork planned for this cruise included a reoccupation of the triangle of 

 the third surve}^ and a section across the Labrador Sea from South 

 Wolf Island, Labrador, to Cape Farewell, Greenland. Accordingly, 

 the Evergreen departed Battle Harbor, Labrador, on the evening of 11 

 July to begin the postseason cruise. The work of collection of data 

 began on 13 July at station 4239 located at the offshore corner of the 

 triangle and progressed in a counterclockwise direction around the 

 triangle. Two sides had been completed when, in the early morning 

 hours of 15 July, the Evergreen proceeded to the assistance of the 

 steamship Britamolene which had gone aground in Trepassey Bay. A 

 few hours later the Britamolene reported she had freed herself and was 

 able to proceed unassisted toward St. John's whereupon Evergreen 



63 



