Career
"The Far Look", in Astounding, August 1956
"Ceramic Incident", in Astounding, October 1956
"The Innocents’ Refuge", in Science Fiction Stories, May 1957
"Satellite Passage", in If, December 1958, and available in The Best of the Best Participant One
"Day of Succession", in Astounding, August 1959
"The Clone", in Fantastic, December 1959
"December 28th", in Playboy, December 1959
"The Intruder", in Fantasy and Science Fiction, February 1961
"Test", in Fantasy and Science Fiction, April 1962
"The Weather Manitoba", in Analog, June 1962
"The Lonely Manitoba", in Galaxy, April 1963
"The Ice Ages", in Fantasy and Science Fiction, April 1965
"Science Springboard, The: Smog", article in Fantasy and Science Fiction, January 1966
"The Doctor", in Orbit 2, 1967
"The Weather on the Sun", in Orbit 8, 1970 (Also available in The Science Fictional Solar System)
"Early Bird (Cogswell)", in Astounding, 1973 (Also available in The John West Campbell Memorial Anthology)
Ker-Plop, in Asimov"s Science Fiction, 1979
"The Splice", in Fantasy and Science Fiction, March 1981
As Cogswell Thomas
"Paradise Regained", in Saving Worlds, 1973
As Leonard Lockard
"The Lagging Profession" (1961)
"Improbable Profession" (1952), in Astounding, September 1952 (co-written with Charles L Harness).