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LOCKYER’S ASTRONOMY

ELEMENTS OF ASTRONOMY:

Accompanied with numerous Illustrations, a Colored Representation
of the Solar, Stellar, and Nebular Spectra,
and Celestial Charts of the Northern
and the Southern Hemisphere.

By J. Norman Lockyer.

American edition, revised and specially adapted to the Schools
of the United States.

12mo. 312 pages. Price, $1.75.

The volume is as practical as possible. To aid the student inidentifying the stars and constellations, the fine Celestial Charts ofArago, which answer all the purposes of a costly Atlas of the Heavens,are appended to the work—this being the only text-book, as far as thePublishers are aware, that possesses this great advantage. Directionsare given for finding the most interesting objects in the heavens atcertain hours on different evenings throughout the year. Every device isused to make the study interesting; and the Publishers feel assured thatteachers who once try this book will be unwilling to exchange it for anyother.

D. APPLETON & CO., Publishers,
549 & 551 Broadway, New York.

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SCIENCE PRIMERS, edited by
Professors Huxley, Roscoe, and
Balfour Stewart.

VI.
PHYSIOLOGY.

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EXPLANATION OF THE PLATE.
Fig. I.—The Human Skeleton in Profile.