Kinds of Wireless Systems--Parts of a Wireless System--The Easiest Way to Start--About Aerial Wire Systems--About the Receiving Apparatus--About Transmitting Stations--Kinds of Transmitters--The Spark Gap Wireless Telegraph Transmitter--The Vacuum Table Telegraph Transmitter--The Wireless Telephone Transmitter.
[II. PUTTING UP YOUR AERIAL]
Kinds of Aerial Wire Systems--How to Put Up a Cheap Receiving Aerial--A Two-wire Aerial--Connecting in the Ground--How to Put up a Good Aerial--An Inexpensive Good Aerial--The Best Aerial That Can be Made--Assembling the Aerial--Making a Good Ground.
[III. SIMPLE TELEGRAPH AND TELEPHONE RECEIVING SETS]
Assembled Wireless Receiving Sets--Assembling Your Own Receiving Set--The Crystal Detector--The Tuning Coil--The Loose Coupled Tuning Coil--Fixed and Variable Condensers--About Telephone Receivers-- Connecting Up the Parts--Receiving Set No. 2--Adjusting the No. 1 Set--The Tuning Coil--Adjusting the No. 2 Set.
[IV. SIMPLE TELEGRAPH SENDING SETS]
A Cheap Transmitting Set (No. 1)--The Spark Coil--The Battery--The Telegraph Key--The Spark Gap--The Tuning Coil--The High-tension Condenser--A Better Transmitting Set (No. 2)--The Alternating Current Transformer--The Wireless Key--The Spark Gap--The High-tension Condenser--The Oscillation Transformer--Connecting Up the Apparatus--For Direct Current--How to Adjust Your Transmitter. Turning With a Hot Wire Ammeter--To Send Out a 200-meter Wave Length--The Use of the Aerial Switch--Aerial Switch for a Complete Sending and Receiving Set--Connecting in the Lightning Switch.
[V. ELECTRICITY SIMPLY EXPLAINED]
Electricity at Rest and in Motion--The Electric Current and its Circuit--Current and the Ampere--Resistance and the Ohm--What Ohm's Law Is--What the Watt and Kilowatt Are--Electromagnetic Induction--Mutual Induction--High-frequency Currents--Constants of an Oscillation Circuit--What Capacitance Is--What Inductance Is--What Resistance Is--The Effect of Capacitance.