ol. 39. APRIL 1870. No. 261 



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THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE, 



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JOURNAL OF SCIENCE. 



Being -a Continuation of Tilloch's ' Philosophical Magazine,' 

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



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



FOURTH SERIES. 



N° 261.— APRIL 1870. 



WITH A PLATE, 



Illustrative of Canon Moseley's Paper on the ° Veined Structure" of 

 the Ice of Glaciers. 



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