56 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 70 



no degree on the accidental character of the observations, but 

 quantitatively and qualitatively are completely trustworthy. 



The curves for the western field between 60° and 70° west longi- 

 tude seem to be the least satisfactory, since they deviate strongly 



99 19 0J 1 2 3 "f S 6 7 S 9 19J0 



f-2' 



^f- 



-F- 



-2' 



Figure 20. Curves for the temperature anomalies for the surface in 10° 

 longitude fields along the shipping course Channel to New York for February 

 (full drawn lines) and March-April (dotted lines) 1898 to 1910. 



from the other curves and even disagree among themselves to some 

 extent. In this region of the sea we must expect that the accidental 

 sources of error will make themselves the most strongly felt in 

 the observations, partly because the isotherms here lie very close 



