WORKS published by LONGMANS & CO, 



ASTRONOMY and METEOROLOGY. 



Outlines of Astronomy. 



By Sir J. F. W. HERSCHEL, Bart. M. A. 

 Latest Edition, with Plates and Dia- 

 grams. Square crown 8vo. 12s. 



Essays on Astronomy. 



A Series of Papers on Planets and 

 Meteors, the Sun and Sun-surrounding 

 Space, Stars and Star Cloudlets. By 

 R. A. PROCTOR, B.A. With 10 Plates 

 and 24 Woodcuts. 8vo. 12s. 



The Moon ; her Motions, 



Aspects, Scenery, and Physical' Con- 

 dition. By R. A. PROCTOR, B.A. 

 With Plates, Charts, Woodcuts, and 

 Lunar Photographs. Crown 8vo. \os.6d. 



The Sun ; Ruler, Light, Fire, 



and Life of the Planetary System. By 

 R. A. PROCTOR, B.A. With Plates & 

 Woodcuts. Crown 8vo. 14^. 



The Orbs Around Us ; 



a Series of Essays on the Moon & 

 Planets, Meteors & Comets, the Sun & 

 Coloured Pairs of Suns. By R. A. 

 PROCTOR, B.A. With Chart and Dia- 

 grams. Crown 8vo. "js. 6d. 



Other Worlds than Ours ; 



The Plurality of Woi.ds Studied under 

 the Light of Recent Scientific Re- 

 searches. By R. A. PROCTOR, B.A. 

 With 14 Illustrations. Cr. 8vo. ioj. 6d. 



The Universe of Stars ; 



Presenting Researches into and New 

 Views respecting the Constitution of 

 the Heavens. By R. A. PROCTOR, 

 B.A. Second Edition, with 22 Charts 

 (4 Coloured) and 22 Diagrams. 8vo. 

 price los. 6d. 



The Transits of Venus ; 



A Popular Account of Past and Coming 

 Transits. By R. A. PROCTOR, B.A. 

 20 Plates (12 Coloured) and 27 Wood- 

 cuts. Crown 8vo. .Ss. 6fi. 



Saturn and its System. 



By R. A. PROCTOR, B.A. 8vo. with 

 14 Plates, 14-r. 



The Moon, and the Con- 



dition and Configurations of its Surface. 

 By E. NEISON, F.R.A.S. With 26 

 Maps & 5 Plates. Medium 8vo. 3u. 6d. 



A New Star Atlas, for the 



Library, the School, and the Obser- 

 vatory, in 12 Circular Maps (with 2 

 Index Plates). By R. A. PROCTOR, 

 B.A. Crown 8vo. $s. 



Larger Star Atlas, for the 



Library, in Twelve Circular Maps, 

 with Introduction and 2 Index Plates. 

 By R. A. PROCTOR, B.A. Folio, 15.?. 

 or Maps only, 12s. 6d. 



A Treatise on the Cy- 



cloid, 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 Mattel- 

 projected from the Sun. By R. A. 

 PROCTOR; B.A. With 161 Diagrams. 

 Crown 8vo. los. 6d. 



Dove's Law of Storms, 



considered in connexion with the 

 Ordinary Movements of the Atmo- 

 sphere. Translated by R. H. SCOTT, 

 M.A. 8vo. xoj. 6d. 



Air and Rain ; the Begin- 

 nings of a Chemical Climatology. By 

 R. A. SMITH, F.R.S. 8vo. 24*. 



Schellen's Spectrum 



Analysis, in its Application to Terres- 

 trial Substances and the Physical 

 Constitution of the Heavenly Bodies. 

 Translated by JANE and C. LASSEI.I-, 

 with Notes by W. HUGGINS, LL.D. 

 F. R. S. 8vo. Plates and Woodcuts, 28.?. 



