and along the eastern edge of the Grand Banks, has been discussed 

 on the basis of two triangidar surve3'S made 2 weeks apart. 



6. The thermal conditions in the intermediate water of the Lab- 

 rador Sea found in 1949 have been noted and compared to those 

 found in earlier years. 



7. The circulation in the Labrador Sea, Davis Strait, and southern 

 Baffin Bay has been discussed on the basis of six sections across the 

 major currents in these regions. 



8. The almost total absence of the Irminger Current component of 

 the West Greenland Current at Cape Farewell in 1949 has been 

 discussed, and mean curves representing the approximate seasonal 

 variation in the volume of flow of the East Greenland Current com- 

 ponent and the Irminger Current component of the West Greenland 

 Current deduced from earlier occupations of the Cape Farewell 

 section. 



Following are tabulated the data collected during the 1949 season 

 and postseason cruises. The individual station headings give the sta- 

 tion number, date, geographic position, depth of water, and the 

 dynamic height of the sea surface used in the construction of the 

 dynamic topographic charts shown in figures 14, 15, 16, 18, and 20 for 

 which the dynamic heights have been referred to the 1,000-decibar 

 surface, and for figure 23 for which the dynamic topography has 

 been referred to the 1,500-decibar surface. The depths of water are 

 uncorrected sonic soundings based on a sounding velocity of 800 

 fathoms per second. Where the depths of the scaled values are en- 

 closed in parentheses, the data are based on extrapolated vertical 

 distribution curves of temperature or salinity or both. Asterisks 

 appearing before observed temperatures indicate that these tempera- 

 tures were determined from the depth of reversal and the corrected 

 reading of an unprotected thermometer. The symbol a^ signifies 

 1,000 (density— 1) at atmospheric pressure and temperature t. 



88 



