366 Kev. S. J. Perry and Prof. Balfour Stewart. [Dec. 10, 



Amount of vertical 

 change in curve-inches. 



m 



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Nature of 



change 

 of westerly 

 declination. 



Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 

 Decrease 



Increase 

 Decrease 

 Increase 

 Decrease 

 Increase 



Decrease 



Time of end. 



m 



Ph 



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Time of commencement. 



m 



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Ph 



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 1 i— 1 



Date. 



1883. 



22 



Running 

 number. 



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