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| | | 
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ft i 1 1 t “ek 
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I Te HC CURVE Hee instars 
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1 MAGNNTIC DUCLINATION, ‘aaa 
ieee Observed at Cambruige NE. during Tam day May 29-30-1840 
: are value of one division 072. } 
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| Cambridge MT F Midraght. i : 
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