POPULAR SCIENCE. 



LIEBIG'S FAMILIAR LETTERS ON CHEMISTRY. 



Fourth Edition, revised throughout, with additional letters. 1 Vol. small 

 8vo, 7s. 6d. cloth. 



COMMON THINGS EXPLAINED. By DIONYSIUS 



LARDNER, D.C.L. Containing : Air Earth Fire Water Time The 

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*** Sold also in Two Series, 2s. 6d. each. 



THE ELECTRIC TELEGRAPH. By DR. LARDNER. 



New Edition. Eevised and re-written by E. B. BRIGHT, F.R.A.S., 

 Secretary of the British and Irish Magnetic Telegraph Company ; con- 

 taining full information, in a popular form, of the Telegraphs at home 

 and abroad, brought up to the present time ; including Descriptions of 

 Railway Signalling Apparatus, Clock Regulating by Electricity, Admiral 

 Fitzroy's System of Storm Warning, Messages, &c. 140 Illustrations. 

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THE MICROSCOPE. By DIONYSIUS LARDNER, D.C.L. 



(From " The Museum of Science and Art.") 147 Illustrations, 2s. cloth. 



POPULAR GEOLOGY. By DIONYSIUS LARDNER, D.C.L. 



(From " The Museum of Science and Art.") 201 Illustrations, 2s. Qd. 



STEAM AND ITS USES : including the Steam Engine., 



the Locomotive, and Steam Navigation. By DIONYSIUS LARDNER, D.C.L. 

 (From " The Museum of Science and Art.") 89 Illustrations, '2s. cloth. 



POPULAR ASTRONOMY. By DIONYSIUS LARDNER, 



D.C.L. (From "The Museum of Science and Art.") 182 Illustrations, 

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NATURAL PHILOSOPHY FOR SCHOOLS. By DR. 



LARDNER. 328 Illustrations. 1 Vol. 3s. Qd. cloth. 



ANIMAL PHYSIOLOGY FOR SCHOOLS. By DR. 



LARDNER. 190 Illustrations. 1 Vol. 3s. Qd. 



LONDON : JAMES WALTON, 137, GOWER STREET. 



