Scientific Works published by Longmans, Green, <5^ Co, 21 



ASTRONOMY, NAVIGATION, ETC. Continued. 



GILL, TEXT-BOOK ON NAVIGATION AND NAUTICAL AS- 

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HERSCHEL. OUTLINES OF ASTRONOMY. By Sir JOHN F. W. 



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LAUGHTON.AN INTRODUCTION TO THE PRACTICAL 



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MAXTIN. NAVIGATION AND NAUTICAL ASTRONOMY. 



Compiled by Staff Commander W. R. MARTIN, R.N. Royal 8vo., i8s. 



MERRIFIELD. A TREATISE ON NAVIGATION. For the Use 



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PARKER. ELEMENTS OF ASTRONOMY. With Numerous Ex- 

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WEBB. CELESTIAL OBJECTS FOR COMMON TELESCOPES. 



By the Rev. T. W. WEBB, M.A., F.R.A.S. Fifth Edition. Revised and greatly 

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WORKS BY RICHARD A. PROCTOR. 



THE MOON : Her Motions, Aspect, Scenery, and Physical Condition. 

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OTHER WORLDS THAN OURS : the Plurality of Worlds Studied 



Under the Light of Recent Scientific Researches. With 14 Illustrations; Map, Charts, 

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OUR PLACE AMONG INFINITIES : a Series of Essays contrasting 



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MYTHS AND MARVELS OF ASTRONOMY. Crown 8vo., 3*. 6d. 

 LIGHT SCIENCE FOR LEISURE HOURS: Familiar Essays on 



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THE ORBS AROUND US; Essays on the Moon and Planets, 



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THE EXPANSE OF HEAVEN : Essays on the Wonders of the 



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OTHER SUNS THAN OURS: a Series of Essays on Suns Old, 

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HALF-HOURS WITH THE TELESCOPE : a Popular Guide to the 



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OVER. 



