L 37. 



JANUARY 1894. 



No. 224 



Published the First Day of every Month. 



THE 



LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE, 



AND 



JOURNAL OF SCIENCE. 



Being a Continuation of Tilloclis i Philosophical Magazine, 9 

 Nicholson's 'Journal? and Thomson's 'Annals of Philosophy.'* 



CONDUCTED BY /'&'*/ 



LORD KELVIN, LL.D. P.R.S. Ac. 



GEORGE FRANCIS FITZGERALD, M.A. So.D. F.R.S. 



AND 



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



FIFTH SERIES. 



N° 224.- JANUARY 1894. 



WITH TWO PLATES. 



Illustrative of H. Nagaoka's Paper on the Hysteresis attending the 

 Change of Length by Magnetization in Nickel and Iron. 



LONDON: 



PBINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



>ld by Simpkin, Marshall, Hamilton, Kent, and Co., Ld.; Whittaker and Co. ; 

 and "by A. and C. Black; — T. and T. Clark, Edinburgh; Smith and Son, 

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Double Number. Price Five Shillings. 



