The data collected in 1956 are tabulated below. The individual 

 station headings give the station number, date, geographical posi- 

 tion, depth of water and the dynamic height of the sea surface 

 used in the construction of the dynamic topographic charts shown 

 in fiures 12, 13, 14, 15 and 20. The depths of water are rough 

 approximations, being the uncorrected sonic soundings based on 

 a sounding velocity of 800 fathoms per second and containing an 

 additional mechanical speed error of about 1/60. Where the depths 

 of scaled values are enclosed in parentheses, the data are based 

 on extrapolated vertical distribution curves of temperature or 

 salinity or both. Asterisks apearing before observed temperatures 

 indicate that these temperatures were determined from the depth 

 of reversal and the corrected reading of an unprotected thermom- 

 eter. The symbol o- t signifies 1,000 (density-1) at atmospheric 

 pressure and temperature t. 



65 



