reader. The great underlying
facts and principles of astronomy are presented in a shape
which any intelligent person can comprehend. The book may be
used either for self-instruction or for schools.

History of Astronomy

By George Forbes, M.A., F.R.S., M.Inst.C.E.

Formerly Professor of Natural Philosophy, Anderson's College, Glasgow

_16mo. Adequately Illustrated._

_No. 1. A History of the Science Series_

The author traces the evolution of intellectual thought in
the progress of astronomical discovery, recognizing the
various points of view of the different ages, giving due
credit even to the ancients. It has been necessary to
curtail many parts of the history, to lay before the reader
in unlimited space enough about each age to illustrate its
tone and spirit, the ideals of the workers, the gradual
addition of new points of view and of new means of
investigation.

An Easy Guide to the Constellations

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._

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 London

The Destinies of the Stars

By

Svante Arrhenius

Author of "Worlds in the Making," etc.

_12mo. 26 Illustrations._

With keenness, brilliancy, and distinguished learning, Dr.
Arrhenius, a Nobel Prize winner, having had occasion
repeatedly to treat new questions of a cosmological nature,
questions largely arisen from new discoveries and
observations within the scope of astronomy, opens to the
reader vast new vistas, through the study of the relation of
the stars to the "Milky Way" and through observations of our
neighbor planets.

G.P. Putnam's Sons
New York London

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