| Issue | #5 |
| Published | September 1946 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | ? |
| Genre | fact |
| Genre | Fact |
| Notes | History of jet power |
| Genre | fact |
| Pencils | Gerald Altman (signed G. Altman) |
| Inks | Gerald Altman |
| Letters | Gerald Altman? |
| Genre | fact |
| Pencils | Seymour (signed) |
| Inks | Seymour (signed) |
| Genre | fact |
| Pencils | Paul Parker (signed) |
| Inks | Paul Parker |
| Letters | Paul Parker? |
| Notes | telling time |
| Genre | fact |
| Pencils | Warren Kremer (signed Doc) |
| Inks | Warren Kremer |
| Notes | The greatest American microbe hunter |
| Genre | fact |
| Script | Joseph Blair (signed) |
| Letters | typeset |
| Genre | fact |
| Notes | The history of the bridge more clearly than anything else mirrors man's effort and achievement |
| Genre | fact |
| Notes | Correcting some popular misconceptions and fallacies about living things in the world around us. |
| Genre | fact |
| Genre | fact |
| Genre | fact |
| Pencils | Warren Kremer (signed Doc) |
| Inks | Warren Kremer |
| Genre | fact |
| Pencils | Seymour (signed) |
| Inks | Seymour (signed) |
| Genre | fact |
| Notes | The development of the self-starter for cars. |