David I. Masson
The Caltraps of Time, first edition. London: Faber and Faber, 1968.
Seven stories formerly published in New Worlds SF, then edited by Michael Moorcock:
- Travellers Rest, New Worlds 154, September 1965.
- Mouth of Hell, New Worlds 158, January 1966.
- A Two-Timer, New Worlds 159, February 1966.
- Psychosmosis, New Worlds 160, March 1966.
- The Transfinite Choice, New Worlds 165, August 1966.
- Lost Ground, New Worlds 169, December 1966.
- Not So Certain, New Worlds 173, July 1967.
The Caltraps of Time, second, expanded edition. Reading, Berkshire: Ansible E-ditions, 2003.
Contents as before (rearranged and revised by the author), plus three previously uncollected stories from original anthologies:
- The Show Must Go On, The Disappearing Future ed. George Hay. London: Panther, 1970.
- Take It or Leave It, The Year 2000, ed. Harry Harrison. Garden City, NY: Doubleday, 1970
- Doctor Fausta, Stopwatch ed. George Hay. London: New English Library, 1974.