Chapter II: Preface

CHAPTER I. INTRODUCTORY: WIRELESS TRANSMISSION AND RECEPTION. THE
ETHER. ELECTRICAL OSCILLATIONS. ELECTROMAGNETIC WAVES.

CHAPTER II. THE MEANS FOR RADIATING AND INTERCEPTING ELECTRIC WAVES.
AERIAL SYSTEMS. EARTH CONNECTION.

CHAPTER III. THE TRANSMITTING APPARATUS.

CHAPTER IV. THE RECEIVING APPARATUS.

CHAPTER V. TUNING AND COUPLING, DIRECTIVE WAVE TELEGRAPHY.

CHAPTER VI. THE DIGNITY OF WIRELESS. ITS APPLICATIONS AND SERVICE.
WIRELESS IN THE ARMY AND NAVY. WIRELESS ON AN AEROPLANE. HOW A
MESSAGE IS SENT AND RECEIVED.

CHAPTER VII. THE EAR. HOW WE HEAR. SOUND AND SOUND WAVES. THE VOCAL
CHORDS. THE STRUCTURE OF SPEECH.

CHAPTER VIII. THE TELEPHONE TRANSMITTER AND RECEIVER. THE PHOTO
PHONE. THE THERMOPHONE. THE SELENIUM CELL. THE SPEAKING ARC.

CHAPTER IX. THE WIRELESS TELEPHONE.