Zei (1963) F-253 SF Robert Silverberg (as Calvin M. Knox) One of Our Asteroids is Missing / A. E. van Vogt The Twisted Men (1964) F-261 SF Samuel R. Delany The Towers of Toron / Robert Moore Williams The Lunar Eye (1964) F-265 SF Jack Vance The Houses of Iszm / Son of The Tree (1964) F-273 SF Marion Zimmer Bradley Falcons of Narabedla / The Dark Intruder (1964) F-275 SF Philip E. High No Truce With Terra / Murray Leinster The Duplicators (1964) F-285 SF Fritz Leiber Ships to the Stars / Ken Bulmer The Million Year Hunt (1964) F-289 SF Ken Bulmer Demons' World / Tom Purdom I Want the Stars (1964) F-299 SF John Brunner Endless Shadow/ Gardner Fox The Arsenal of Miracles (1964) M Series M-101 SF Leigh Brackett The Secret of Sinharat / People of the Talisman (1964) M-103 SF Fred Saberhagen The Golden People / Lan Wright Exile From Xanadu (1964) M-105 SF Margaret St. Clair Message From the Eocene / Three Worlds of Futurity (1964) M-107 SF A. Bertram Chandler The Coils of Time / Into The Alternate Universe (1964) M-109 SF G.C. Edmondson Stranger Than You Think / The Ship That Sailed the Time Stream (1965) M-111 SF Edmond Hamilton Fugitive of the Stars / Kenneth Bulmer Land Beyond the Map (1965) M-113 SF Damon Knight Off Center / The Rithian Terror (1965) M-115 SF John Brunner The Repairmen of Cyclops / Enigma From Tantalus (1965) M-117 SF Bruce W. Ronald Our Man in Space / Jack Sharkey Ultimatum in 2050 A.D. (1965) M-121 SF Emil Petaja Alpha Yes, Terra No! / Samuel R. Delany The Ballad of Beta-2 (1965) M-123 SF John Brunner The Altar on Asconel / Ted White Android Avenger (1965) M-125 SF Jack Vance Monsters in Orbit / The World Between and Other Stories (1965) M-127 SF John Rackham We, The Venusians / Fred Saberhagen The Water of Thought (1965) M-129 SF A. Bertram Chandler The Alternate Martians / A. Bertram Chandler Empress of Outer Space (1965) M-131 SF Kenneth Bulmer Behold The Stars / Mack Reynolds Planetary Agent X (1965) M-133 SF A. Bertram Chandler Space Mercenaries / Emil Petaja The Caves of Mars (1965) M-135 SF Philip E. High The Mad Metropolis / Murray Leinster Space Captain (1966) M-139 SF Samuel R. Delany Empire Star / Tom Purdom The Tree Lord of Imeton (1966) M-141 SF