Vol. 10. NOVEMBER 1880. No. 63 



Published the First Day of every Month. — 'Price 2s. Qd. 



THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE, 

 JOURNAL OF SCIENCE. 



Being a Continuation of Tilloclis 'Philosophical Magazine, 

 Nicholson s 'Journal, and Thomson s 'Annals of Philosophy.'' 



CONDUCTED BY 



SIR ROBERT KANE, LL.D. F.R.S. M.R.I.A. F.C.S. 

 SIR WILLIAM THOMSON, Knt. LL.D. F.R.S. <fec. 



AND 



WILLIAM FRANCIS, Ph.D. F.L.S. F.R.A.S. F.C.S. 

 ■ 



FIFTH SERIES, Kfe 



N° 63.— NOVEMBER 1880. / 



WITH THEEE PLATES. 



Illustrative of Mr. D. Winstanley s Paper on Air-Thermoineters, 

 Messrs. Frederick Guthrie and C. V. Boys's on the Conductivity 

 of Liquids, and Prof. E. Wiedemann's on the Behaviour of Gases 

 under the Influence of the Electric Discharge. 



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