50 



during the whole period; it may, therefore, be that the drift of the- 

 berg has been somewhat different from what is indicated on' the map. 

 The berg drifted in a southeasterly direction from June 3 to June 4. 

 Unfortunately there are no oceanographic stations in this area. 



A third berg was observed on 42° 50' N. and 51° W. on June 1. 

 The iceberg drifted practically the same way as one of the first twO' 

 (black triangle). The berg was last seen on June 6. 



The fourth berg which was observed on May 3, just north 43° N. 

 and east of 49° W. (indicated by a black triangle) drifted slowly 

 toward southwest and kept moving around in the eddy (in around 

 the neighborhood) of station 1417 from May 7 to May 23. 



A fifth berg which was sighted on May 31 on about 43° N. and 

 50° W. drifted also into this eddy from which it did not get out. 

 It was last time sighted on June 6. 



The maps, Figures 24 and 28, show the horizontal distribution of 

 warm and cold water on 100 and 200 meters, respectively. 



JUNE 13 TO JUNE 19, 1932 



The current map is based on 31 stations (stations Nos. 1431 to 

 1461). The following calculations of the velocity of the current 

 have been made: 



Between the stations 1433 and 1434, 13 miles a day. 

 Between the stations 1438 and 1439, 15 miles a day. 

 Between the stations 1447 and 1448, 36 miles a day. 



There were no known icebergs in the area of oceanographic inves- 

 tigations during this period; but several bergs were sighted and re- 

 ported north of 47° N. Several changes in the currents have taken 

 place since the last map (May). The most remarkable on the map 

 from this period is the strong Gulf Stream between the stations 1447 

 and 1448; further that the Gulf Stream makes an encroachment 

 toward the east slope of the Bank on about 44° 30' N. This phenom- 

 enon has been experienced in previous years, and whenever well de- 

 veloped it definitely blocks the path of the bergs from reaching the 

 tail of the Bank, and deflects them to the eastward. When the 

 current map was delivered on board the ice-patrol cutter Pontchartrain 

 on June 19 the analysis of it clearly brought out that the bergs which 

 were reported north of latitude 47° never would be able to reach 

 further south than the forty-sixth parallel. It was, therefore, recom- 

 mended that the ice patrol, 1932, be discontinued. The ice-patrol 

 cutter scouted along the eastern slope of the Bank during the follow- 

 ing 14 days. No icebergs drifted south of 47° 30' N. 



The horizontal temperature distribution in 100 and 200 meters 

 is shown on the maps. Figures 25 and 29. 



