Introductory material
Reading edition
How to Select Batteries for Gas Lighting.
Electrical Rules—Electromotive force—Amperes—Resistance—Selecting a battery—Arrangement of battery—Series—Multiple—How to get high voltage or large current—The Leclanche Cell—The Samson Cell—The Dry Cell and how to make one—The Edison-Lalande Cell—The Fuller Cell—Care and maintenance of batteries 78