This mail-in contest offered some great prizes to readers who could solve the two parts of the puzzle. The first part had the readers trying to find the flight path of a lost aviator. The second part featured a story by William E. Barrett in which the readers had to identify all the errors in the story.

• Download “The Lost Aviator Contest” (June 1931, War Birds)

This story features the wacky duo of Elmer Hubbard and Pokey Cook. See how they manage to get themselves into and out of hot water once again.

• Download “Channel Skimmers” (January 1934, Sky Birds)