The “Liberte” and the “Maine”, and more

The Meter

That Inexorable Mechanical Accountant of the Gas Company

The Burning of the German Military Dirigible “M III”

Carrying Mail by Aeroplane

The First Experiments in this Country at the International Aviation Meet

The Diesel Engine

The Development of a Remarkable Motor

Filling a 400,000 Cubic-foot Balloon

Hydrogen-generating Plant for Vaniman's Transatlantic Expedition

Magnetic T-Square

Suggestions for the Workshop- October 7, 1911

Ingenious Expedients of Resourceful Mechanics

Laying Out Work for Drilling

Repairs to a Cistern

Holder for Filing Small Screws

Refacing Valve Seats

Flywheel Brake

Disposition of Guns in Dreadnoughts

Foreign Navies are Adopting the American Center-line Plan

Abstracts from Current Periodicals- October 7, 1911

Phases of Science as Other Editors See Them

The Inventor's Department- October 7, 1911

Simple Patent Law; Patent Office News: Inventions New and Interesting