Astounding Science Fiction: March 1956 Wells Alan Webb, Correlation of the Martian Canal Network See also: Emsh’s cover Frank Kelly Freas’ interior illustrations (Minor Ingredient) H. R. Van Dongen’s interior illustrations (Man In the Sky) H. R. Van Dongen’s interior illustrations (A Nice Little Niche) Frank Kelly Freas’ interior illustrations (Double Star)  The Viking Rocket Story (advertisement)