| Issue | #15 |
| Published | August 1939 |
| Cover Price | 0.10 |
| Pages | 68 |
| Editing | Vincent Sullivan |
| Characters | Superman |
| Genre | superhero |
| Pencils | Fred Guardineer |
| Inks | Fred Guardineer |
| Letters | ?, most typeset |
| Reprinted | in Superman From the Thirties to the Eighties (Crown Publishers, Inc., 1983 series) #nn; In Superman: The Action Comics Archives (DC, 1997 series) #1. |
| Characters | Superman Clark Kent]; George Taylor (not named); Lois Lane; Holloway; Villains: "Big Boy" Chaney, Marchetti, Mugsy. |
| Synopsis | On assignment at Kidtown, Clark discovers that the institution needs $2 million to remain in the black and remain open, and, as Superman, decides that a newly discovered underwater treasure is the answer for the funds he needs. |
| Genre | superhero |
| Script | Jerry Siegel (signed) |
| Pencils | Paul Cassidy (signed as Joe Shuster) |
| Inks | Paul Cassidy? |
| Notes | The last panel of the story is an illustrated plug for Sandman and Batman. Synopsis added by Craig Delich 8-10-08. |
| Reprinted | In Superman: The Action Comics Archives (DC, 1997 series) #1. |
| Genre | fact |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Characters | Pep Morgan; Mr. Smith. |
| Synopsis | Pep goes to work for Mr. Smith. |
| Genre | adventure |
| Script | Gardner F. Fox |
| Pencils | Fred Guardineer (signed as Gene Baxter) |
| Inks | Fred Guardineer (signed as Gene Baxter) |
| Notes | Writer credit added by Craig Delich 8-10-08. |
| Characters | Marco Polo |
| Genre | period |
| Pencils | Sven Elven |
| Inks | Sven Elven |
| Letters | Sven Elven |
| Notes | Letterer credit added by Craig Delich 8-10-08. |
| Characters | Clip Carson |
| Genre | adventure |
| Script | Bill Finger |
| Pencils | Bob Kane |
| Inks | Bob Kane |
| Notes | Continued in next issue. Writer credit added by Craig Delich 8-10-08. |
| Genre | adventure |
| Script | Toni Blum ? (signed as Jack Anthony) |
| Pencils | ? (spot illos) |
| Inks | ? (spot illos) |
| Letters | typeset |
| Characters | Tex Thomson; Gargantua T. Potts (I). |
| Genre | adventure |
| Script | Ken Fitch? |
| Pencils | Bernard Baily (signed) |
| Inks | Bernard Baily (signed) |
| Letters | Bernard Baily |
| Notes | Letterer credit added by Craig Delich 8-10-08. |
| Genre | fact |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Genre | aviation |
| Pencils | Terry Gilkison |
| Inks | Terry Gilkison |
| Genre | fact |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Characters | Chuck Dawson; V: Killer Keefe. |
| Genre | adventure |
| Pencils | Homer Fleming (signed as H. Fleming) |
| Inks | Homer Fleming (signed as H. Fleming) |
| Characters | Zatara |
| Genre | occult |
| Script | Gardner F. Fox |
| Pencils | Fred Guardineer |
| Inks | Fred Guardineer |