Application of induction coils to gas-lighting—Forms of burners used—Pendant Burners—Ratchet Burners—Stem Burners—Welsbach Burners—Burners for Acetylene Gas—Burners for Gasolene—Automatic Burners
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