| Year | 1918 |
| Date | 25-Jul |
| Volume | 39 |
| Issue | 900 |
| Page | 53 |
| Category | General |
| Part | |
| Title | Engineering and Invention Notes |
| Author | |
| Notes | Guiding an Oxy-acetylene Cutter. Spectacles fitted with Electric Light. A New Rust-proofing Process. A New Element for Electrical Cooking and Heating Appliances. Technical Boy Experts. Lubricants for Drilling Hard Steel |