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Figs. 4 and 5. Absolute Declination Diagrams. 

 1902 



I55f 



May June July 



Aug. StPT. Oct. 

 1903 



Feb. 1903 



1903 



Jan. 



Feb. 



Mar. 



May June July Aug. 



Sept. Oct. 



Nov. 



Dec. Jan. 



FeB.1904 



Mean for 8 months, May to December, 1902 152 33 -9 E. 



1903 152 7-5 E. 



Difference 26 4 decrease. 



Mean for year 1903 152 16 4 E. 



These values have been obtained by measuring the ordinates of the curves in figa. 4 and 5, at the middle of each month. 



