DEKADE 

 I H M T IS m 



ir 



- W 



w 



JO' 



S' - 



ff' 





O" 



■ y ill 



10 20 / 10 20 I in 



Figure 12 Curves as in figure ii for the 2° fields between lo" and ^o° 

 west ongitude, between 30° and 50° west longitude, and between so° and 70° 

 west longitude along the course Channel to New York 



