Vol. 26. NOVEMBER 1888. No. 162. 



Published the First Day of every Month. — Price 2s. 6J. 



1*6 Iff. 



THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE, 



AND 



JOURNAL OF SCIENCE. 



Being a Continuation of TillocJis '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. &c. 



AND 



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



FIFTH SERIES. 



N° 162.— NOVEMBER 1888. 



WITH TWO PLATES. 

 Illustrative of Mr. Tanakadate's Paper on the Mean Intensity of Mag- 

 netization of Soft Iron Bars of Various Lengths in a Uniform 

 Magnetic Pield. 



LONDON: 



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