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Popular Books on Astronomy With Charts of the Moon, Star Maps on a New Plan, and an Easy Guide to the Astronomical Uses of the Opera-Glass, the Field-Glass, and the Telescope

By Kelvin McKready

Crown 8vo. Illustrations

While basing his book upon the best precedents, European and American, Mr. McKready takes the beginner directly to the objects of the sky without the employment of difficult technical detail. Just as a pleasurable knowledge of the flowers may precede a technical knowledge of botany, so—without appreciating the science of astronomy on its mathematical side—Mr. McKready is first of all concerned with the task of making the stars interesting. The book will be distinguished from other volumes on popular astronomy by a somewhat novel system of mapping, and by an unusually full discussion of the uses of the simpler astronomical instruments. Here too, however, the treatment is definite and practical. Questions of optical theory and construction are subordinated to the pointing out, by the author, of the objects that can be seen, and of the satisfactions that may be obtained, first with the unaided eye (the fundamental optical instrument), and then with the opera-glass, field-glass, and telescope.

With a Miniature Atlas of the Stars

By James Gall

Author of "The People's Atlas of the Stars," etc.

New and Enlarged Edition, with 30 Maps, 16mo, 75 cents net

This new edition of An Easy Guide to the Constellations has been thoroughly revised; five additional plates have been added, so as to include all the constellations of the Zodiac, and render the book complete for Southern Europe and the United States. G. P. PUTNAM'S SONS New York