The Secret of Perpetual Youth
| First published | February 1924 |
|---|---|
| Type | Short Fiction |
| Series | Dr. Hackensaw's Secrets #25 |
According to Bleiler this episode is numbered incorrectly as 26. It has been corrected to give the proper sequence.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1924 |
|
Science and Invention, February 1924 | Experimenter Publishing Company | MAGAZINE | 978 |