Vol. 18. NOVEMBER 1884. No. 114. 



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PHILOSOPHICAL MAGAZINE, 



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FIFTH SERIES. 



N° 114.— NOVEMBER 1884. 



WITH ONE PLATE. 



Illustrative of Mr. J. Hopps's Paper on the Alterations in the Electrical 

 Eesistances of Metallic Wires, produced by Coiling and Uncoiling. 



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