59° 



Table 739 

 SECULAR CHANGE OF MAGNETIC DECLINATION 



Changes in the magnetic declination between 1820, or the date of the earliest observations, and 

 1930, based on tables in "Magnetic Declination in the United States in 1925" published by the 

 U. S. Coast and Geodetic Survey (Special Publication No. 126) in 1926. 



Smithsonian Tables 



