1898-1902. No. 6. 



TERRESTRIAL MAGNETISM. 



75 



igoo. July 28. Obs. Isachsen. 

 Mer. 88° 45' 



L. T. 



Needle Circle 



Mean 10 49 a. m. 



Defl. 



/' 



Needle 



1900. July 31. Obs. Isachsen. 

 Mer. 179° 4'. 



Defl. 



N 

 N 



I' 



o ' 



86 55.8 



55-4 

 38.1 



87 20.6 



86 32.5 

 34-6 



87 27.5 

 19.2 



Mean 3 57 p. 



Needle 



/ = 86 58 



1900. August I. Obs. Isachsen. 

 Mer. 88° 36'. 



Mean 



Defl. 



Needle 



/ = 87 



