By DAVID P. TODD, M.A., Ph.D., Professor of Astronomy and
Director of the Observatory, Amherst College.

Cloth, 12mo. 500 pages. Illustrated $1.30

A new Astronomy designed for classes pursuing the study in High Schools,
Academies, and other Preparatory Schools. The treatment throughout is
simple, clear, scientific, and deeply interesting. The illustrations
include sketches from the author's laboratory and expeditions, and
numerous reproductions from astronomical photographs.


_Copies of the above books will be sent, prepaid, to any address on
receipt of the price by the Publishers:_

American Book Company

NEW YORK · CINCINNATI · CHICAGO

* * * * *

Birds of the United States

A Manual for the Identification of Species East of the Rocky Mountains

By AUSTIN C. APGAR

Author of "Trees of the Northern United States," etc.