Sir Richard Gregory, the editor of "Nature" has written a book which recalls Sir Robert Ball's popular writings on astronomy. "The Vault of Heaven,". as it is well entitled, provides general readers with a picturesque account of some of the celest¥.l marvels revealed by ihe use of the telescope, and two of its indispensable adjuncts, the spectroscope and the photographic camera. Here is astronomy without mathematics, descriptions of the most remarkable modern discoveries relating to the sun, the planets, the aeon, the stars, and other bodies, visible and invistble,-in our universe..
is a book welcome to all who are interested in the newest astronomical science, and in the beauty of the heavens,
Text read from the printed page and cleaned; old type leaves the occasional error.