| Year | 1918 |
| Date | 30-May |
| Volume | 38 |
| Issue | 892 |
| Page | 327 |
| Category | Electrical |
| Part | |
| Title | Economising in Electric Lighting and Power |
| Author | Frederic H.Taylor |
| Notes | Hints on Carrying out the New Order. Three lamps per switch, one lamp per switch, a two-way & "off" switch |