
The Manufacture of Chicory
A Franco-Belgian Industry Stopped by the War

The Manufacture of Chicory
A Franco-Belgian Industry Stopped by the War

Photographing Speech
Some Recent Investigations by Dr. Marage

The Scientist and the Athlete
The Physiological Laboratory of the French Military School at Joinville

Further Experiments on Life Without Microbes

The Colin-Jeance System of Wireless Telephony
New Apparatus With Which Telephonic Communication Has Been Carried On Over Sixty Miles

An Automobile Radio-Telegraph Station for War Use
Wireless Car for the French Army Equipped with Powerful Field Apparatus

Pneumatic Grain Elevators
The Ideal Method of Handling Cargoes

The Scientist and the Athlete
The Physiological Laboratory of the French Military School at Joinville

Protection From X-rays in Radiography
The Devices of Dr. Maxime Ménard

Motion Pictures of Vocal Chords

An Ingenious Instrument for Studying Vibrations
The Bourlet-De Guiche Vibrometer

The Experimental Laboratory of the Automobile Club of France
Testing Internal Combustion Engines for the Automobile, the Flying Machine and the Farm

A Disease of Old Leaden Art Objects
How Corrosion may be Retarded by a Protective Coating

An Electric Hotel in Paris

Are Men Better Typists Than Women?
Interesting Scientific Tests Made by J. M. Lahy

Sawing a Bridge with a Wire
An Old Idea Revived and Improved

An Integrating Opacimeter for Stellar Photography

The War Against Field Mice in France
Arsenic, barium carbonate, and bisulphide of car-bon have been used with more or less success in de-strolling field mice and similar pests. The method now most favored consists in infecting mice with a contagious disease. In the following article the Danysz virus discovered at the Pasteur Institute of Paris and applied for this purpose is described.-- Editor.

Curious Exotic Fishes

An Intensifier for Telephone Transmission

Dussaud's "Cold Light"
Its Remarkable Applications

The Anesthetizing Machine of Prof. Dubois, A New Theory of Sleep

The French Sardine Industry, A Safety Automatic Train Stop and more

A New Method of Educating Deaf Mutes