12 Scientific Works published by Longmans^ Green, &• Co. 



PROCTOR— "Works by Richard A. Proctor. 

 Old and New Astronomy. 1 2 Parts, 



2s. Qd. each. Supplementary Section, 

 ^ Is. Complete in 1 vol. 4to. 36s. 

 The Moon : Her Motions, Aspect, 



Sf^enery, and Physical Condition. 



"With many Plates and Charts, Wood 



Engraving, and 2 Lunar Photographs. 



Crown 8vo. 5s. 



The Universe of Stars : Researches 



into, and ISevf "Views respecting, the 

 Constitution of the Heavens. With 

 22 Charts (4 coloured) and 22 Dia- 

 grams. 8vo. 10s. 6rf. 



Other Worlds than Ours: the 



Plurality of Worlds Studied under 

 the Light of Recent Scientific He- 

 searches. With 14 Illustrations; 

 Map, Charts, &c. Crown 8vo. 5s. 

 Cheap Edition. Crown 8vo. 3s. Qd. 



Treatise on the Cycloid and all 



Forms of Uycloidal Curves, and on 

 the "Use of Cyeloidal Curves in dealing 

 with the Motions of Planets, Comets, 

 &c. With 161 Diagrams. Crown 

 8vo. 10s. Qd, 



The Orbs Around Us : Essays on the 

 Moon and Planets, Meteors and 

 Comets, the Sun and Coloured Pairs 

 of Suns. Crown Svo. 5s. 



Light Science for Leisure Hours : 



Familiar Essays on Scientific Subjects, 

 Natural Phenomena, &.c. 3 vols. Cr. 

 Svo. 5s. each. 



Our Place among Infinites : 



contrasting our Little Abode in Space 

 and Time with the Infinites around 

 us. CroWn Svo. 5s. 



The Expanse of Heaven : Essays on 



the Wonders of the Firmament. Cr. 

 Svo. 6s. 



New Star Atlas for the Library, 



the School, and the Observatory, in 

 Twelve Circular Maps (with 2 Index- 

 Plates). With an Introduction on the 

 Study of tlie Stars, Illustrated by 9 

 Diagrams. Crown Svo. 5s. 

 Larger Star Atlas for Observers and 

 Students. In Twelve Circular Maps, 

 showing 6000 Stars, 1500 Double 

 Stars, Nebulae, &c. With 2 Index- 

 Plates. Folio 15s. ; or the Twelve 

 Maps only, 12s. Qd. 



The Stars in their Seasons : an Easy 



Guide to a Knowledge of the Star 

 Groups. In 12 Large Maps. Im- 

 perial Svo. 5s. 



The Seasons pictured in I^orty- 



eight Sun-views of the Earth, and 

 24 Zodiacal Maps, &c. Demy 4to. 5s. 



The Star Primer : showing the Starry 

 Sky, Week by Week. In 24 Hourly 

 Maps. Crown 4to. 2s. 6t?. 



Lessons in Elementary Astro- 

 nomy ; with hints for Youug Tele- 

 scopists. With 47 Woodcuts. Fcp. 

 Svo. Is. Qd. 



"WEBB— Celestial Objects for Common Telescopes. By the Rev. 



T. W. Webb, M.A. Fifth Edition, adapted to the Present State of 

 Sidereal Science. Map, Plate, Woodcuts. Crown Svo. \In the press. 



METEOROLOGY, &c. 



ABBOTT— Elementary Theory of the Tides : the Fundamental 

 Theorems Demonstrated without Mathematics, and the Influence on 

 the Length of the Day Discussed. By T. K. Abbott, B.D., Fellow 

 and Tutor, Trinity College, Dublin. Crown Svo. 2s. 



JORDAN— The Ocean : n Treatise on Ocean Currents and Tides, and 

 their Causes. By William Leighton Jordan, F.KG.S. Svo. 21s. 



SCOTT — "Weather Charts and Storm "Warnings. By Robebt 

 H. Scott, M.A., F.RS., Secretary to the Meteorological Council 

 With numerous Illustrations. Crown Svo, 6s, 



