LARGER STAR ATLAS for the Library, in Twelve Circular Maps, with Introduction and 2 Index Plates. Folio, 15_s._, or Maps only, 12_s._ 6_d._ ESSAYS on ASTRONOMY. A Series of Papers on Planets and Meteors, the Sun and Sun-surrounding Space, Stars and Star Cloudlets. With 10 Plates and 24 Woodcuts. 8vo. 12_s._ TRANSITS of VENUS; a Popular Account of Past and Coming Transits, from the First Observed by Horrocks in 1639 to the Transit of 2012. With 20 Lithographic Plates (12 Coloured) and 38 Illustrations engraved on Wood. 8vo. 8_s._ 6_d._ STUDIES of VENUS-TRANSITS; an Investigation of the Circumstances of the Transits of Venus in 1874 and 1882. With 7 Diagrams and 10 Plates. 8vo. 5_s._ PLEASANT WAYS in SCIENCE, with numerous Illustrations. Crown 8vo. 6_s._ MYTHS and MARVELS of ASTRONOMY, with numerous Illustrations. Crown 8vo. 6_s._ London: LONGMANS, GREEN, & CO. * * * * * Transcriber's Notes Obvious typographical errors have been silently corrected. Variations in hyphenation and all other spelling and punctuation remain unchanged. Italics are represented thus _italic_. End of the Project Gutenberg EBook of Light Science for Leisure Hours, by Richard A. Proctor