IN PREPARATION.
THINGS A BOY SHOULD KNOW ABOUT ELECTRICITY.
This book explains, in simple, straightforward language, many things about electricity; things in which the American boy is intensely interested; things he wants to know; things he should know.
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Thomas M. St. John, 407 West 51st St., New York.
The Study of Elementary Electricity
and Magnetism by Experiment
Containing
TWO HUNDRED EXPERIMENTS
PERFORMED WITH
SIMPLE, HOME-MADE APPARATUS
BY
THOMAS M. ST. JOHN, Met. E.
Author of "Fun With Magnetism," "Fun With Electricity," "How
Two Boys Made Their Own Electrical Apparatus," Etc.
