Telephones and Microphones: How to Make and Use Them: a Practical Handbook for Amateur Electricians

Model Sailing Yachts - How to Build, Rig, and Sail Them

1001 Mechanical Facts Made Easy - A Handbook of Simple Mechanical Knowledge for Everyone Interested in the Work of the Engineer

Practical Lessons in Metal Turning - A Handbook for Young Engineers and Amateur Mechanics

Model Steamers and Motor Boats: How to Build and Run Them

1001 Mechanical Facts Made Easy - A Handbook of Simple Mechanical Knowledge for Everyone Interested in the Work of the Engineer

Practical Lessons in Metal Turning - A Handbook for Young Engineers and Amateur Mechanics

Induction Coils: How to Make and Use Them. a Practical Handbook on the Construction and Use of Medical and Spark Coils

Model Sailing Yachts - How to Build, Rig, and Sail Them