' r 



Vol. 30. 



■ 



AUGU 



ST 1890 





No. 183. 



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 Tilloclis 'Philosophical Magazine,' 

 Nicholsons ' Journal f and Thomson s l Annals of Philosophy. ,' 



CONDUCTED BY 



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

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



AND 



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



FIFTH SERIES. 



N° 183.— AUGUST 1890. 



WITH THEEE PLATES. 



Illustrative of Mr. H. Tomlinson's Paper on the Effect of Change of 

 Temperature on the Villari Critical Point of Iron, and Messrs. 

 Maclean and Makita Goto's on some Electrical Properties of Flames. 



LONDON: 



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



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

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

 Glasgow: — Hodges, Figsis, and Co., Dublin :— Putnam, New York : — Veuve J. 

 Boyveau, Paris : — and Asher and Co., Berlin. 



