1 6 Scientific Works published by Longmans^ Green., &* Co,
��WORK8 BY RICHARD A. PROCTOR-O^iiMtiMNf.
MYTHS AND MARVEI^ OF ASTRONOMY. Crown 8vo.,
y.6d. LIGHT SCIENCE FOR LEISURE HOURS : Familiar Essays
on Scientific Subjects, Natural Phenomena, etc. Vol I. Crown 8vo., y, 6d.
THE ORBS AROUND US; Essays on the Moon and Planets,
Meteors and Comets, the Sun and Coloured Pairs of Suns. Crown 8va . y. 6d*
THE EXPANSE OF HEAVEN : Essays on the Wonders of the
FirmamenL Crown 8va , y, 6d,
OTHER SUNS THAN OURS : a Series of Essays on Suns— Old,
Young, and Dead. With other Science Gleanings. Two Essajrs on Whist, and Correspondence with Sir John HerscheL With 9 Star-Maps and Diagrams. Crown Bvo. , y. 6d,
HALF-HOURS WITH THE TELESCOPE: a Popular Guide
to the Use of the Telescope as a means of Amusement and Instruction. With 7 Plates. Fcp. 8vo., 2s. 6d.
NEW STAR ATLAS FOR THE LIBRARY, the School, and
the Observatory, in Twelve Circular Maps (with Two Index-Plates). With an Introduction on the Study of the Stars. Illustrated by 9 Diagrams. Cr. 8vo., 51.
THE SOUTHERN SKIES: a Plain and Easy Guide to the
Constellations of the Southern Hemisphere. Showing in 12 Maps the position of the principal Star-Groups night after night throughout the year. With an Introduction and a separate Explanation of each Map. True for every Year. 4to., 5/.
HALF-HOURS WITH THE STARS : a Plain and Easy Guide
to the Knowledge of the Constellations. Showing in 13 Maps the position of the principal Star-Groups night after night throughout the year. With Intro- duction and a separate Explanation of each Map. True for every Year. 4to., y, 6d»
LARGER STAR ATLAS FOR OBSERVERS AND STUDENTS.
In Twelve Circular Maps, showing 6000 Stars, 1500 Double Stars, Nebulse, etc With 2 Index-Plates. Folio, 15X.
THE STARS IN THEIR SEASONS: an Easy Guide to a
Knowledge of the Star-Groups. In la Large Maps. Impenal 8va, 5;.
ROUGH WAYS MADE SMOOTH. Familiar Essays on
Scientific Subjects. Crown 8vo., y. 6d.
PLEASANT WAYS IN SCIENCE. Crown 8vo., 3^. 6d, NATURE STUDIES. By R. A. Proctor, Grant Allen, A.
Wilson, T. Foster, and E. Clodd. Crown 8vo., y. 6d.
LEISURE READINGS. By R. A. Proctor, E. Clodd, A.
Wilson, T. Foster, and A. C. Ranyard. Crown 8vo., y, 6d,
PHYSIOGRAPHY AND GEOLOGY.
B/I^D.— Works by CHARLES BIRD, B.A.
ELEMENTARY GEOLOGY. With Geological Map of the
British Isles, and 347 Illustrations. Crown 8vo., aj. 6d.
ADVANCED GEOLOGY. A Manual for Students in Advanced
Classes and for General Readers. With over 300 Illustrations, a Geologica] Map of the British Isles (coloured), and a set of Questions for EzaminaUon. Crown 8vo., 7s. 6d.
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