Directed by
| Douglas Sinclair | ||
Writing Credits
| Earle Luby | ... | (written by) |
Cast (in credits order)
| Harry Wismer | ... | Harry Wismer - Narrator | |
 |
Ken Watson | ... | Demostrator |
Produced by
| Earle Luby | ... | producer |
Cinematography by
| Douglas Sinclair | ||
Editing by
| James Woolley | ||
