PUBLICATIONS OF G. P. PUTNAM'S SONS. WORKS BY R. A. PROCTOR. A NEW STAR ATLAS. For the Library, School, and Observatory. In 12 circular maps, with two index plates and with letter-press introduction in the study of the stars. by wood-cuts. Third edition, Octavo cloth Illustrated $250 LARGER STAR ATLAS. Showing 6,000 stars, and 1,500 objects of interest, in 12 circular maps on the equidistant projection, with two colored index plates, including all the stars to the fifth magnitude and the constellation figures, with a letter-press introduction. Folio, cloth extra $7 00 HALF HOURS WITH THE STARS. A plain and easy guide to the knowledge of the constellations, showing in 12 maps the position of the principal star-groups night after night throughout the year, with introduction and a separate explanation of each map. True for every year. 4to, "Nothing so well calculated to give rapid and thorough knowledge of the position of the stars in the firmament has ever before been designed or published."-Weekly Times. HALF HOURS WITH THE TELESCOPE. $250 Being a popular guide to the use of the telescope as a means of amusement and instruction. Adapted to inexpensive instruments. With illustrations on stone and wood. 12° cloth, $1 25 It is crammed with starry plates on wood and stone, and among the celestial phenomena described or figured, by far the larger number may be profitably examined with small telescopes."-Illustrated Times. EASY STAR LESSONS. With 48 star maps and 35 other $250 illustrations. Cr. Octavo, cloth extra "Mr. Proctor, of all writers of our time, best conforms to Matthew Arnold's conception of a man of culture, in that he strives to humanize knowledge, to divest it of whatever is harsh, crude, or technical, and so make it a source of happiness and brightness for all."-Westminister Review. |