PHYSICAL SCIENCE. 17 



Shann. AN ELEMENTARY TREATISE ON HEAT, IN 

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Smith. HISTORIA FILICUM : An Exposition of the Nature, 

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South Kensington Science Lectures. Vol. I. Con- 

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Spottiswoode. POLARIZATION OF LIGHT. By W. 



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Stewart (B.) Works by BALFOUR STEWART, F.R.S., Professor 



of Natural Philosophy in Owens College, Manchester : 

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PRIMER OF PHYSICS. With Illustrations. New Edition, with 

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Stewart and Tait. THE UNSEEN UNIVERSE: or, 



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Tait. LECTURES ON SOME RECENT ADVANCES IN 

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