National Antarctic Expedition, 1901-1901. 



Plate 17 (Magnetic Obwnatioiu). 



West Long: I4O 



150 



160 170 180 170' 160 I5O I4O 



130 



E<iaE Long: 



Chart I. Lines of equal magnetic declination. (See p. 155.) 



From observations made by the Officers of the National Antarctic Expedition, 1902-1904. 

 By Commander L. W. P. CHETWYND, Royal Navy. 



