)1. 37. 



MAY 1894. 



No. 228. 



Published the First Bay 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 c Journal f and Thomson's 'Annals of Philosophy.' 



CONDUCTED BY y- U 6/ 



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° 228.— MAY 1894. 



WITH FIVE PLATES. 



Illustrative of Prof. Langley's Paper on the Internal Work of 



the Wind. 



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old by Siinpkin, Marshall, Hamilton, Kent, and Co., Ld.; Whittaker and Co. ; 

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