| Year | 2021 |
| Date | 26-Mar |
| Volume | 226 |
| Issue | 4,661 |
| Page | 458 |
| Category | Historic |
| Part | 19 |
| Title | The Stationary Steam Engine |
| Author | Ron Fitzgerald |
| Notes | Albion Mill and its Aftermath. Takes a look at the history and development of the stationary steam engine. The Lap Engine of 1788, John Southern's drawing of the centrifugal governor, references |