“Behind the Sandrat Hoax ” Galaxy Oct 1968
“Bill for Delivery” Analog Nov 1964
“The Captive Djinn ” Analog May 1965
“The Claw and the Clock” Analog Feb 1971
“The Hunch” Analog Jul 1961
“Ideological Defeat ” Analog Sep 1972
“The Knife and the Sheath ” Future Kin, 1974
“Negative Feedback ” short fiction Analog Mar 1994
“Philosopher's Stone” Analog Jan 1963
“The Prisoner” Astounding Feb 1956
“Stranglehold” Analog Jun 1966
“Uncalculated Risk” Analog Mar 1962