﻿\oi. 38. AUGUST 1894. No. 231 



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 TillocKs 'Philosophical Magazine,' 

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



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CONDUCTED BY 



LORD KELVIN, LL.D. P.R.S. <fcc. 



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



AND 



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



FIFTH SERIES* 



N° 231.— AUGUST 1894. 



WITH ONE PLATE. 



Illustrative of Mr. J. Trowbridge's Paper on Electrical Kesooauce 

 and Electrical Interference. 



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