Transcriber’s Note
Larger versions of most illustrations may be seen by right-clicking them and selecting an option to view them separately, or by double-tapping and/or stretching them.
BY THE SAME AUTHOR.
Arithmetic of Electricity.
A Complete and Indispensable vade mecum for amateur, student, and electrical engineer.
Fully Illustrated. Price, $1.00.
Home Experiments in Science.
252 Pages. 96 Illustrations. Price, $1.50.