Discussions of Ocean Magnetic Work, 1905-16 



425 



by the Carnegie on the homeward portion of Cruise II in 1913, and on Cruise IV in 1915. 

 Figure 31 shows the chart-corrections revealed on Cruise III of the Carnegie in the North 

 Atlantic Ocean in 1914; during this cruise a high northerly latitude (79° 52') was reached off 

 the northwest coast of Spitzbergen. 



Port StuTileij 



Cruise 11, 1913 



5t Helena 



Bahia 



9000 



\2000 



NaitUcQl mUe5 

 Grefnport 



Cruise M, 1915 



Neu) YorK 



Colon 



3000 



16000 ' ' 21000 Nautical miles 



Fia. 30. — Showing Corrections of Magnetic-Declination Charts for the Atlantic Ocean, 1913 and 1915. 



(British Admiralty, - ; United States Hydrographic Office, ; German Admiralty, .) 



Neu) York 



Cruise in.1914 



Hammerresl Re\jlC]a ul)c 



Neu) VorK 



3000 NauUcQl miles GOOO 

 Fia. 31. — Showing Corrections of Magnetic-Declination Charts for the North Atlantic Ocean, 1914. 

 (British Admiralty, ; United States Hydrographic OflBce, ; German Admiralty, 



9000 

 .) 





^?^>'^AS3^' 



