3^ \UH1EF CLER K, y> 



1 Vol. 30. novembetttsm: No. i86. 



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THE 

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PHILOSOPHICAL MAGAZINE, 



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JOURNAL OF SCIENCE. 



Being a Continuation of TillocKs 'Philosophical Magazine' 

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



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

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FIFTH SERIES. 



N° 186.— NOVEMBER 1890. 



WITH THEEE PLATES. 

 Illustrative of Mr. Spencer Umfreyille Pickering's Paper on the 

 Expansion of Water and other Liquids, and Messrs. H. E. J. G. ©u 

 Bois and H. Rubens's on Refraction and Dispersion in certain Metals. 



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