Credits for cover from letter column in The Flash #206.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Lettering credit based on John Costanza's "page 13" numbering (black circle with white number).
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Letters from readers - Bernard Williams, Jim Vecchio, Gary Kuhlmann, Robert Ellis, Edward Broderick and Roger Klorese.
4 facts - Halley's Comet, the telescope, homogenizing milk with sound and trade winds.