of) 



Vol. 29. APRIL 1890. No. 179 



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



THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE. 



AND 



JOURNAL OF SCIENCE. 



Being a Continuation of Tilloctis 'Philosophical Magazine' 

 Nicholson s l 'Journal J and Thomson s 'Annals of Philosophy? 



CONDUCTED BY 



SIR WILLIAM THOMSON, Knt. LL.D. F.R.S. &c. 

 GEORGE FEANCIS FITZGERALD, M.A., F.R.S. 



AND 



WILLIAM FRANCIS, Ph.D. F.L.S. F.RA.S. F.O.S. 



FIFTH SERIES. 



N° 179.— APRIL 1890. 



WITH ONE PLATE. 



Illustrative of H. E. J. G. dtj Bois's Paper on Magnetization in Strong 



Fields at Different Temperatures. 



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