Letter (Science Wonder Quarterly, Spring 1930): Developed the Science Correspondence Club (prize winner)
| First published | March 1930 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1930 |
|
Science Wonder Quarterly, Spring 1930 | Stellar Publishing Corporation | MAGAZINE | 422|422.1 |