Harl Vincent

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Astounding Stories of Super-Science, August 1930, [en] 1930

Astounding Stories of Super-Science, July 1930, [en] 1930

Astounding Stories of Super-Science
February 1930, [en] 1930

Astounding Stories of Super-Science, December 1930, [en] 1930

The Copper-Clad World, [en] 1931

Vulcan's Workshop, [en] 1932

Creatures of Vibration, [en] 1932

Wanderer of Infinity, [en] 1933