The Secret of Perpetual Motion
| First published | November 1924 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Series | Dr. Hackensaw's Secrets #33 |
According to Bleiler this episode is numbered incorrectly as 34. It has been corrected to give the proper sequence.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1924 | Science and Invention, November 1924 | Experimenter Publishing Company | MAGAZINE | 660 |