| Year | 1912 |
| Date | 04-Jul |
| Volume | 27 |
| Issue | 584 |
| Page | 8 |
| Category | Nautical |
| Part | |
| Title | Notes on Buoys, Lights and Beacons |
| Author | C.Blazdell |
| Notes | Principal types of bouys, two photos of various kinds of bouys, gas bouys, the Thames Estuary, diagram of channel bouyed on the Uniform system, diagram of apparatus for producing an intermittent light in gas bouy, etc., automatic whistling bouy |