| Year | 1939 |
| Date | 22-Jun |
| Volume | 80 |
| Issue | 1,989 |
| Page | 721 |
| Category | Boiler |
| Part | |
| Title | A "Yarrow" Boiler |
| Author | L.C.Lambert |
| Notes | An Unusual Model with Scope for Experiment. The circulating pumps, side-back view, front view showing pumps, firing the boiler, fitting boiler tubes, angle side view. sectional drawing of the circulating pumps |