The author has adopted the unique plan of setting forth the fundamental principles in each phase of the science, and practically applying the work in the successive stages.  It shows how the knowledge has been developed, and the reasons for the various phenomena, without using technical words so as to bring it within the compass of every boy.  It has a complete glossary of terms, and is illustrated with two hundred original drawings.

Practical Mechanics for Boys

This book takes the beginner through a comprehensive series of practical shop work, in which the uses of tools, and the structure and handling of shop machinery are set forth; how they are utilized to perform the work, and the manner in which all dimensional work is carried out.  Every subject is illustrated, and model building explained.  It contains a glossary which comprises a new system of cross references, a feature that will prove a welcome departure in explaining subjects.  Fully illustrated.

For sale by all Booksellers, or sent postpaid on receipt of $1.00.

M.A.  DONOHUE & COMPANY

711 S. DEARBORN STREET CHICAGO