ok for students and others. Systematic course for home or school.
220 pages; 200 experiments; cloth; fourth edition. Price $1.25

This book with 105 pieces of apparatus complete, by express $6.25

R53--THINGS A BOY SHOULD KNOW ABOUT ELECTRICITY explains in simple
language things a boy wants to know, things he should know. Seventh
edition. 180 pages; cloth. Price $1.00

R54--REAL ELECTRIC TOY-MAKING FOR BOYS contains complete directions for
making and using many electrical toys. Over 100 original drawings,
diagrams and plates. Second edition; 140 pages, cloth. Price $1.00

R55--WIRELESS TELEGRAPHY FOR AMATEURS AND STUDENTS contains theoretical
and practical information, together with directions for performing
numerous experiments on wireless with simple home-made apparatus. Third
and enlarged edition in preparation. Price $1.00

R56--ELECTRICAL HANDICRAFT contains complete directions for making and
using nearly 150 pieces of electrical apparatus, including various
devices and outfits for experimental purposes. New ideas and inexpensive
supplies. Cloth; 252 pages; 250 drawings. Second edition. Price $1.00

R57C--THE STUDY OF ELECTRIC MOTORS BY EXPERIMENT contains sixty
experiments that bear directly upon the construction, operation and
explanation of electric motors, together with much helpful information
upon the apparatus required. Over 100 pages; paper cover. Price $0.35

R58--THINGS A BOY SHOULD KNOW ABOUT WIRELESS contains much practical and
some theoretical information on the operation and explanation of
wireless outfits, together with numerous wiring-diagrams. Third edition;
126 pages; cloth. Price $1.00

Ask your Bookseller, Toy-dealer or Electrical Store for our Books,
Games, Toys and Electrical Apparatus.

Write for Catalogue.

THOMAS M. ST. JOHN, Cascade Ranch, East Windham, N.Y.

* * * * *

HOW TWO BOYS MADE THEIR OWN ELECTRICAL APPARATUS

Containing Complete Directions for Making All Kinds of Simple
Apparatus for the Study of Elementary Electricity

by

THOMAS M. ST. JOHN, Met. E.

Author of "Fun With Magnetism," "Fun With Electricity,"
"The Study of Elementary Electricity and Magnetism
by Experiment," "Things A Boy Should Know
About Electricity," etc.

Eighth Edition

Thomas M. St. John
Cascade Ranch
East Windham New York

Copyright, 1898,
by Thomas M. St. John

How Two Boys Made Their Own Electrical Apparatus.

TABLE OF