interesting to the student and the general reader. The treatment of the
planets and other heavenly bodies and of the law of universal
gravitation is unusually full, clear, and illuminative. The marvelous
discoveries of Astronomy in recent years, and the latest advances in
methods of teaching the science, are all represented.

The illustrations are an important feature of the book. Many of them are
so ingeniously devised that they explain at a glance what pages of mere
description could not make clear.


_Copies of Todd's New Astronomy will be sent, prepaid, to any address on
receipt of the price by the Publishers:_

American Book Company

NEW YORK · CINCINNATI · CHICAGO

* * * * *

A Laboratory Manual in Practical Botany

For use in Secondary Schools and for Elementary Work in Colleges

By CHARLES H. CLARK, A.M., D.Sc.,

Principal of Windsor Hall School, Waban, Mass.

Cloth, 12mo, 272 pages. Illustrated 96 cents