France and the Aeroplane

The “Trust” System as Applied to Scientific Research

Lessons of the "Republic" Disaster

Science

Engineering

Aeronautics

The Industrial Use of the Lifting Magnet

The Improvement of the Charles River at Boston, Mass

A Sensitive Thermometer

Are Filtering Beds Correctly Constructed?

That Aerolite Again

The Physical Energy of the House-Fly

By the English Correspondent of the Scientific American

Present Conditions in the Panama Canal Zone

BY A LAY CORRESPONDENT

Another Method of Making Metal Lamp Shades

Patch for Kitchen Boilers

A Joint for the Work Bench

How to Wind a Spaced Coil Spring

Handy Man's Workshop

How to File Round Work

How to Mend a Hammock or Fishing Net

Simple Support for Bicycles

A Fire-Plug Wrench

How to Solder Aluminium

Stopcock of Glass Tubing

Straightening Buckled Castings