CONTENTS.

[CHAPTER I.]
Introductory Remarks.
Introduction; means of producing sparks; Induction—Simple induction coils—Ruhmkorff Coils1
[CHAPTER II.]
Multiple Gas Lighting.
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 Burners7
[CHAPTER III.]
Connections and Wiring.
How to connect up apparatus—Wiring a house—Locating breaks or short-circuits—Wiring in finished houses—General remarks26
[CHAPTER IV.]
Primary Coils and Safety Devices.
How to make a simple induction coil—Automatic Cut-outs—The Syracuse Cut-out—Boston Cut-out—Edwards’ Cut-out46
[CHAPTER V.]
Lighting of Large Buildings.
Series or Jump Spark System—Burners used—How to Wire—Edwards’ Condenser System—Switches for series lighting—How to make a 2-inch spark, Ruhmkorff Coil55
[CHAPTER VI.]
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 batteries78