| Year | 1939 |
| Date | 09-Feb |
| Volume | 80 |
| Issue | 1,970 |
| Page | 161 |
| Category | Locomotive |
| Part | |
| Title | Blast Pipes and Chimneys |
| Author | Henry Greenly |
| Notes | Essential features of design and arrangement. Exhaust nozzle orifice, arriving at blast pipe height, alignment testing, influence of scale, friction effects, relationship of blast-pipe to chimney |