| Issue | #338 |
| Published | April 1965 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson] |
| Genre | Superhero |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | in Batman: The Dynamic Duo Archives (DC, 2003 series) #2 (June 2006); in Showcase Presents Batman (DC, 2006 series) #1 |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson]; Orval Manning (first appearance); David; Bull Fleming (first appearance; villain); Chuck (first appearance; villain) |
| Synopsis | A chemical spills on Bruce Wayne's arm, giving Batman super strength in his right arm. |
| Genre | Superhero |
| Script | Gardner Fox |
| Pencils | Sheldon Moldoff [as ghost for Bob Kane] |
| Inks | Joe Giella |
| Notes | Credits for script and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Records show that Bob Kane was paid for the pencils, but scholars agree that pencils were actually by Moldoff. |
| Reprinted | in Batman: The Dynamic Duo Archives (DC, 2003 series) #2 (June 2006); in Showcase Presents Batman (DC, 2006 series) #1 |
| Script | Julius Schwartz |
| Pencils | Morris Waldinger |
| Inks | Tom Nicolosi |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2007). |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Elongated Man |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Carmine Infantino |
| Inks | Sid Greene |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |
| Reprinted | in Showcase Presents The Elongated Man (DC, 2006 series) #1 |
| Script | Jack Schiff |
| Pencils | Sheldon Moldoff |