| Issue | #38 |
| Published | March-April 1958 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Pencils | Gil Kane |
| Inks | Gil Kane |
| Characters | Rex; Dr. Durand |
| Synopsis | Rex and Dr. Durand travel to Ranpur, India in attempt to convince the marharajah to allow a satellite observation post to be set up in his territory. |
| Script | John Broome |
| Pencils | Gil Kane |
| Inks | Bernard Sachs |
| Characters | Detective Chimp [Bobo] |
| Synopsis | A professor attempts to teach Bobo to understand English. |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Carmine Infantino |
| Characters | Rex; Sgt. Stoner |
| Synopsis | Rex aids Sgt. Stoner of the RCMP in apprehending a group of claim jumpers. |
| Script | John Broome |
| Pencils | Gil Kane |
| Inks | Bernard Sachs |