14 WORKS ON MEDICINE, SURGERY 



TTH 



E SUN: RULER, LIGHT, FIRE, AND 



LIFE OF THE PLANETARY SYSTEM, 



By Richard A. Proctor, B.A. Third Edition, revised; with 9 Plates 



(7 coloured) and no Figures engraved on Wood. Crown 8vo, price \A i s. 



^HE MOON ; 



Her Motions, Aspects, Scenery, and Physical Condition. By the same 

 Author. With Plates, Charts, Woodcuts, and Lunar Photographs. 

 Crown 8vo, \os. 6d. 



QTHER WORLDS THAN OURS; 



The Plurality of Workb- Studied under the Light of Recent Scientific 

 Researches. By the same Author. Fourth Edition, revised and enlarged ; 

 with 14 Illustrations (6 coloured). Crown 8vo, price 10s. 6d. 



^HE ORBS AROUND US; 



A Series of Familiar Essays on the Moon and Tlanets, Meteors and Comets, 

 the Sun and Coloured Pairs of Suns. By the same Author. Second 

 Edition, with Chart and 4 Diagrams. Crown 8vo, price 7-r. 6d. 



F.SSAYS ON ASTRONOMY; 



A Series of Papers on Planets and Meteors, the Sun and Sun-surrounding 

 Space, Stars, and Star Cloudlets ; and a Dissertation on the approaching 

 Transit of Venus. By the same Author. With 10 Plates and 24 Wood- 

 cuts. 8vo, price \2s. 



TREATISE ON THE CYCLOID, 



And on all forms of Cycloidal Curves, and on the use of Cycloidal Curves 

 in dealing with the Motions of Planets, Comets, &c, and of Matter pro- 

 jected from the Sun. By the same Author. Crown 8vo, 10s. 6J. 



LIGHT SCIENCE FOR LEISURE HOURS; 



A Series of Familiar Essays on Scientific Subjects, Natural Phenomena, &c. 

 By the same Author. First and Second Series. Crown 8vo, Js. 6<f. each. 





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A 



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A 



TREATISE ON PHOTOGRAPHY. 



By W. De Wiyei eslie Av.nky, F.R.S., Caplain in the Corps of Royal 

 Engineers, late Instructor in Chemistiy and 1 holography, School of Mili- 

 tary Engineering, Chatham. With 105 Diagrrms. Small Svo, 3«. 6d. 



HANDBOOK OF PRACTICAL TELE- 

 GRAPHY. 



By R. S. Culley, Member Inst. C.E., Engineer-in-chief of Telegraphs to 

 the Post Office. The Seventh Edition, revised and enlarged ; with 132 

 Woodcuts and 18 Lithographic Plates of Apparatus. 8vo, price 16s. 



EXT-BOOK OF TELEGRAPHY. 



By W. H. Preece, C.E., Divisional Engineer, T.O. Telegraphs; and 

 J. Sivewright, M.A., Superintendent (Engineering Department) P.O. 

 Telegraphs. With 160 Figures and Diagrams engraved on wood. Small 

 8vo, 3J. 6d. 



