^ol. 17. MAY 1884. No. 107. 



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N° 107.— MAY 1884. 



WITH TWO PLATES. 



Illustrative of Dr. B. Hasselberg's Paper on the Second Spectrum of 

 Hydrogen, Mr. J. J. Hood's on the Rate of Chemical Absorption of 

 Gases, with regard to their Interdiffusion, and Mr. W. N. Shaw's 

 on a Practical Point in connexion with the Comparison of Resistances. 



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