
Stories by Jacques Boyer


Reading between the Lines
Methods of Invisible Writing Employed during the War, and their Detection

Mixing Liquids by Machine

Keeping Check on Factory Air

Artificial Ammonia
The Claude Process, Now in Successful Operation in France

Artificial Fertilization of Flowers, Pulling Cables by Auto-Power and more

The Wireless Incendiary

Weighing the Temperature for Blind Folk, A Stretcher that Gives up its Load Painlessly

When the Hun Comes to Paris
The Huge Sirens That Warn the Population to Take Shelter
[air raids on Paris]
[the cover color illustration is associated with this article]

Testing Eggs by Photography
Some of the Things Which the Eyes of the Camera Sees When it Looks Through the Hen's Creations

The High Heel in Motion Picture and X-ray
The Latest Scientific Wrinkles as Applied by French Doctors to Investigating This Sore Subject

The Absent Treatment in Efficiency Tests
Bringing the Nerves of the Battle Line into the Laboratory
By Jaques Boyer
"building up of a series of tests, partly mental and partly physical, by means of which a candidate for aviation or ambulance driving or some other special work is made to reveal his ability to do that work,"...

When the Surgeon Sews
The Manufacture of Catgut for Hospital Use in France.

New Types of Artificial Arms for Victims of the War
Ingenious Devices which Enable the Maimed to Resume their Places in the Industries

New Devices to Aid the Wounded
Hands and Limbs that Enable Expert Operations to be Performed

New Apparatus for Internal Diagnosis, Military Use of Sabadilla in the Manufacture of Tear-Producing Gases

Selecting Aviators
Psycho-Motive Examination of Candidates for the French Service

Newspapers that are Printed Within Gun Range of the Enemy [trench newspapers]
Trench journals from French soldier-journalists.

Automobile Dental Shop of the French Army, A Detachable Headlight Dimmer of Novel Design and more

Kapok—A New Textile Fibre
Its Manufacture and Industrial Applications