462 



WIJKANDER, OBSERVATIONS MAGNETIQUES. 



+ 



Ti 



'h3 



^ 





fR 



o „ • 



Q 



o 



—I o 30 



n CO 



'i* CO 



—1 '>^ 





pH 



bi) 



''o 



o 



P-l n 



-i4 



oc" ^ 



oi 



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