1870 



200 



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courant de Guincc. [Pression haromc- 

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 Amsterdam (Van Leer en Co), 1904. 

 (8 pi.). 58 cm. [1800 Z]. 



[Hamburg, Deutsche Seewarte.] 

 Wcttcrkarten vom Nordatlantischen 

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la North Atlantic Ocean and 

 Islands not otherwise 

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[Hamburg, Deutsche Seewarte.] 

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 1904, (1-5). 



' London, ^Meteorological Office. 

 Monthly pilot charts of the North 

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 Sheets 56 x 77 cm. [1870 rfm]. 



Ic South Atlantic and Islands. 



London, Meteorological Office. 

 Monthly wind charts of the South 

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 London [Issued by the Hvdrographic 

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TERRESTRIAL MAGNETISM. 

 THE COMPASS. EARTH 

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3000 



GENERAL. 



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Brunhes, Bernard. Sur imc ex- 

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 [Reprint. r. also F. 2, No. 1612.J 

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Kohlrausch, E[riedi-ich] und Holborn, 

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 6M. 



3010 MAGNETIC OBSERVA- 



TORIES. METHODS OF 



MEASURING THE VALUES 

 AND VARIATIONS OF THE 

 MAGNETIC ELEMENTS. 



Richmond, National Physical 

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