74 



of ice, which hjul broken off from the main field, to the northwjucl, 

 were reported in lat. 42° 30', from long. 49° 10' to long. 50° 10'. 

 This ice was within the area bounded by the 32° isotherm. Unlike 

 the bergs, the field ice showed no tendency to assume an unusual 

 easterly drift, since it melted rapidly in the relatively warm Atlan- 

 tic water off the continental shelf. 



Seven bergs were observed south of the 4oth parallel in March, 

 1922, and 20 in March, 1923. The Gulf Stream was 60 miles farther 

 north on the 53d meridian, west of the Tail of the Bank, in 1922 

 than in 1923. South of the Tail the boundary between the warm and 

 the cold water occupied about the same position for both years. 

 The velocity of the Gulf Stream east of the Grand Banks was approx- 

 imately 0.8 knot per hour for both years. 



The patrol ship was in the neighborhood of lat. 44°, long. 45°. 



except for a few days spent at anchor on the Tail of the Bank, 



lat. 43° 10', long. 50° 10'. We experienced 4 per cent hours with 



fog and 9 per cent hours with fog and low visibility. The average 



winds were from the west and northwest with a force of 6 (Beaufort 



scale). 



APRIL. 



The easterly and southeasterly drift which was imparted to the 

 icebergs by the Labrador Current between the northern part of the 

 Grand Bank and Flemish Cap. the striking feature for the month 

 of March, continued during the first part of April. After the 10th, 

 however, the number of bergs in the eastern theater diminished. 

 At the same time bergs ISegan to drift down the east side of the 

 Grand Banks and around the Tail. The first berg sighted around 

 the Tail, since those of March 19, was one reported on April 8 in 

 lat. 42° 42', long. 50° 28'. During the remainder of the patrol 

 bergs continued to assume normal drifts, in distinction to those 

 recorded (hiring the early part of the season. Tlie drifts taken by 

 a few of the bergs in the early season are shown on chart "G." 



The fii*st week in April the patrol ship searched in the eastern 

 theater and found a gradually (hminishing number of bergs, and 

 was preparing to return to the vicinity of the Tail of the Bank when 

 the berg of April S was reported. Attention should be calknl to 

 a small berg tliat attained the farthest eastern drift of the season- 

 It was reported in lat. -13° 26', long. 40° 05' on April 5; in lat. 43° 15', 

 long. 39° 4S' on the 6th: and in lat. 43° 05', long. 39° 42' again the 

 same (Uiy. The temperature of the surface water in the vicinity of 

 this berg was (iT and the set of the berg was 135° at the rate of 

 1.5 knots per hour, which is an unusual easterly drift. 



Such (h-ifts emphasize the fact that the Gulf Stream, or any othei- 

 ocean current in the (U'ep ocean basins, uninlhienced b}' continental 



