Contents
| Page | Type | Kind | Title | Author(s) |
|---|---|---|---|---|
| 2 | Short Fiction | Fiction | Asesinato por telepatÃa | Leigh Brackett |
| 28 | Short Fiction | Fiction | Fraude interplanetario | R. J. McGregor |
| 54 | Short Fiction | Fiction | Cargamento atómico | G. Harry Stine |
| 67 | Short Fiction | Fiction | El mundo de la eutanasia | Miriam Allen deFord |
| 80 | Short Fiction | Fiction | La ciencia puede esperar | Ray Cummings |
| 93 | Short Fiction | Fiction | Pesca de altura | Robert Sheckley |
| 106 | Short Fiction | Fiction | Solución | Stanley Whiteside |
| 120 | Essay | Non Fiction | El túnel bajo el Canal de la Mancha | Willy Ley |
| 125 | Essay | Non Fiction | Cuatro siglos de planetas | Robert S. Richardson |
| Page | Type | Kind | Title | Author(s) |
|---|---|---|---|---|
| Editor | Non Fiction | Enigmas - 1957 | Bernardino Diaz | |
| Cover Art | Non Fiction | Enigmas, Num. 14 | Jack Coggins |