Resistance of Bismuth to Alternating Currents. 

 replaced by a non-inductive resislance S and the 



303 



bridge 

 balanced, after which the resistance E was increased by 

 2 per cent. ; the difference of potential across the galvano- 

 meter-arm caused by this increase being balanced as before 

 by means of the potentiometer. 



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Curve II. (fig. 2) is the current curve corresponding to the 

 u bismuth E.M,F." shown in curve I. On comparing these 



