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(Analog (Astounding), October 1942)
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(Analog (Astounding), June 1943).
(Analog (Astounding), November 1943).
(Analog (Astounding), February 1944).
(Analog (Astounding), April 1944).
(Analog (Astounding), October 1944).
(Analog (Astounding), December 1944).
(Analog (Astounding), March 1945).
(Analog (Astounding), June 1945).
(Venus Equilateral Collection, 1947).
(Merit Books, 1950)
(Space SF, March 1953)
(Imagination, March 1955)
(Analog (Astounding), May 1959)
(Analog (Astounding), December 1959)
(Galaxy, December 1959)
(Galaxy, April 1960)
(Galaxy, October 1961)