| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1915 |
|
Police!!! | D. Appleton & Company | Collection | vii |
| July 2000 |
|
The Yellow Sign and Other Stories: The Complete Weird Tales of Robert W. Chambers | Chaosium | Omnibus | 529 |
| February 2004 |
|
The Yellow Sign and Other Stories: The Complete Weird Tales of Robert W. Chambers | Chaosium | Omnibus | 529 |
| June 2006 | Police!!! | Project Gutenberg | Collection |