Contents
| Page | Type | Kind | Title | Author(s) |
|---|---|---|---|---|
| 2 | Serial | Fiction | Contra la noche negra del mundo (Complete Novel) | Arthur C. Clarke |
| 74 | Short Fiction | Fiction | Los hombres isótopos | Festus Pragnell |
| 99 | Short Fiction | Fiction | McInch, el inexplicable | Jack Vance |
| 112 | Short Fiction | Fiction | Yo también soy tenaz | Robert Moore Williams |
| 116 | Short Fiction | Fiction | La habitación de Moebius | Robert Donald Locke |
| 125 | Essay | Non Fiction | El trabajo y el juego | Editorial Proteo |
| 126 | Essay | Non Fiction | Cielos inmisericordes | uncredited |
| 128 | Essay | Non Fiction | Inquietudes cósmicas | Editorial Proteo |
| Page | Type | Kind | Title | Author(s) |
|---|---|---|---|---|
| Editor | Non Fiction | Enigmas - 1955 | Bernardino Diaz | |
| Cover Art | Non Fiction | Enigmas, Num. 5 | Earle K. Bergey |