ACTION COMICS (1938) #17

When a ship is sabotaged, Superman pursues the villains. Untitled Superman story (Siegel / Shuster) Superman rescues an imperiled ocean liner, only to discover that it was sabotaged. On further investigation, he becomes convinced that it is the work of the Ultra-Humanite. Untitled Pep Morgan story (Fox/Guardineer) Untitled Adventures of Marco Polo story (Elven) Untitled Clip Carson story (Finger/Kane) « A Lion’s Share » [text story] Untitled Tex Thomson story (Baily) « Sportettes » (Moldoff) [sports filler] Untitled Chuck Dawson story (Fleming) « Fantastic-Facts » (Papp) [trivia filler] « The Peril of Ophir » (Fox/Guardineer) featuring Zatara