
The Rock-removing Machinery of the Suez Canal, Largest Embankment in Germany and more

The Rock-removing Machinery of the Suez Canal, Largest Embankment in Germany and more

Sending Photographs Over a Telephone Wire
The Improved Bélin Apparatus

Inventions New and Interesting - December 21, 1912
Simple Patent Law; Patent Office News; Notes on Trademarks

A New Gun for Throwing Bombs and Life Lines

Curious Megalithic Monuments of France

A School for Canary Birds
How Canary Birds are Scientifically Bred and Trained

Destroying 300 Millions in Paper Money
A Scientific Method of Burning Banknotes

Broiling Seven Hundred Steaks in Six Minutes
Huge Gas-heated Grills and Ranges

Machine for Makinǵ Wire Nettinǵ
Weaving Wire into Fabric

Submarine Cables and Longitude Determination
The Improvements Devised by Colonel Bourgeois

Cinematoǵraphy and Lantern Projection
The Application of Dussaud's Cold Light to the Moving Picture

The Heilmann Suspension for Automobiles, Light-Weight Alloys for Aerial Engines and Aeroplanes, and more

The Beff Electric Tricycle

Head Noises and how one Scientist Studies Them
Dr. Marage's Wonderful Machine

The Tenth Lepine Toy Exhibition

The New Dosne Heliograph

The Manufacture of Wood Pulp
An American Industry Introduced Into France

A New Method of Measuring the Effect of Light Upon Dyes and Pigments

A Prismatic Altitude and Azimuth Instrument

Electro-Photographic Method of Registering Heart Beats, Multiplication of Color Photographs by Contact Printing, and more

New and Simplified Physical Apparatus

The New Phetographic Apparatus of the Paris School of Mines

Motion Pictures of the Flight of Insects

A Garden of Fungi