HI 



SUPPLEMENTARY NUMBER. 



r ol.3 4. No. 233. 



Published the First Day of every Month. — Price 2s. 6d. 



THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE, 



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JOURNAL OF SCIENCE. 



Being a Continuation of TillocKs 'Philosophical Magazine / 

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SIR DAVID BREWSTER, K.H. LL.D. F.R.S. L.&E.&c. 

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FOURTH SERIES. 



N° 233.— SUPPLEMENT. EEBEUAftY 1868. 



WITH A PLATE, 



Illustrative of Prof. R. Bunsen's Paper on the Temperature of the Flames 

 of Carbonic Oxide and Nitrogen. 



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 for February, and should be delivered with it to Subscribers. 



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