PHYSICAL SCIENCE. 17 



Shann. — AN ELEMENTARY TREATISE ON HEAT, IN 

 RELATION TO STEAM AND THE STEAM ENGINE. 

 By G. Shann, M.A. With Illustrations. Crown 8vo. 4?. 6rf. 



Smith.— HISTORIA FILICUM : An Exposition of the Nature, 

 Number, and Organography of Ferns, and Review of the Prin- 

 ciples upon which Genera are founded, and the Systems of Classifi- 

 cation of the principal Authors, with a new General Arrangement, 

 &c. By J. Smith. A.L.S., ex-Curator of the Royal Botanic 

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 r.L. S. Crown Svo. \2s. dd. 



" No otie anxious to work up a thorough knowledge of ferns can 

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South Kensington Science Lectures. — Vol. I.— Con- 

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 Professor Kennedy, F. J. Bramwell, F.R.S., Professor G. 

 Forbes, H. C. Sorby, F.R.S., J. T. Bottomley, F.R.S.E.. 

 S. H. Vines, B.Sc, and Professor Carey Foster. Crown Svo. 

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Spottiswoode.— POLARIZATION OF LIGHT. By W. 



Spottiswoode, President of the Royal Society. With numerous 

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the text cotnprchensiblc." — Athenteum. "A clear, trustworthy 



mamtal. " — Standard. 



Stewart (B.) — Works by Balfour Stewart, F.R.S., Professor 

 of Natural Philosophy in Owens College, Manchester : — 

 LESSONS IN ELEMENTARY PHYSICS. With numerous 

 Illustrations and Chromolithos of the Spectra of the Sun, Stars, 

 and Nebulae. New Edition. Fcap. Svo. 4^. i>d. 

 The Educational Times calls tins the beau-ideal of a scientific text- 

 book, clear, accurate, and thorough." 

 PRIMER OF PHYSICS. With Illustrations. New Edition, with 

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Stewart and Tait. — the unseen UNIVERSE: or. 



Physical Speculations on a Future State. By Balfour Stewart, 



F.R.S.,andP. G. Tait, M.A. Sixth Edition. Crown Svo. 6j. 



" The book is one which well deserves the attention of thoughtjnl ana 



religious readers. . . . It is a perfectly sober inquiry, on scientific 



grounds, into the possibilities of a future existence." — Guardian. 



Tait.— LECTURES ON SOME RECENT ADVANCES IN 

 PHYSICAL SCIENCE. By P. G. Tait, M.A., Professor ot 

 Philosophy in the University of Edinburgh. Second edition, 

 revised and enlarged, with the Lecture on Force delivered before 

 the British Association. Crown Svo. <)s. 



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