| Year | 1919 |
| Date | 25-Sep |
| Volume | 41 |
| Issue | 961 |
| Page | 293 |
| Category | Electronic |
| Part | |
| Title | Wireless Notes and Developments |
| Author | J.Scott-Taggart |
| Notes | A New Wireless Bill. Wireless Operators Required. Directional Wireless Systems. Vacuum Valve Patents. Use of Trees as Aerials |