Preface
WIRELESS TELEGRAPHY
HIGH-SPEED TELEGRAPHY.
THE TELEPHONE.
Wireless Telephony.
THE PHONOGRAPH.
The Photographophone.
The Telephonograph.
THE TELAUTOGRAPH.
MODERN ARTILLERY.
Rifles.
Machine-Guns.
Heavy Ordnance.
Explosives.
In the Gun Factory.
DIRIGIBLE TORPEDOES.
SUBMARINE BOATS.
ANIMATED PICTURES.
THE GREAT PARIS TELESCOPE
PHOTOGRAPHING THE INVISIBLE.
Photography in the Dark.
SOLAR MOTORS.
LIQUID AIR.
HORSELESS CARRIAGES.
Types of Car.
HIGH-SPEED RAILWAYS.
SEA EXPRESSES.
MECHANICAL FLIGHT.
TYPE-SETTING BY MACHINERY.
PHOTOGRAPHY IN COLOURS.
Colour Printing.
LIGHTING.
