D Series
- D-031 SF A. E. van Vogt The World of Null-A / The Universe Maker (1953)
- D-036 SF Robert E. Howard Conan the Conqueror / Leigh Brackett The Sword of Rhiannon (1953)
- D-044 SF Donald A. Wollheim (ed.) The Ultimate Invader and Other Science-Fiction / Eric Frank Russell Sentinels From Space (1954)
- D-053 SF Murray Leinster Gateway to Elsewhere / A. E. van Vogt The Weapon Shops of Isher (1954)
- D-061 SF L. Sprague de Camp Cosmic Manhunt / Clifford D. Simak Ring Around The Sun (1954)
- D-069 SF Lewis Padgett (Henry Kuttner and C. L. Moore) Beyond Earth's Gates / Andre Norton Daybreak—2250 A. D. (1954)
- D-073 SF Donald A. Wollheim (ed.) Adventures in the Far Future / Donald A. Wollheim (ed.) Tales of Outer Space (1954)
- D-079 SF Francis Rufus Bellamy Atta / Murray Leinster The Brain Stealers (1954)
- D-084 SF Isaac Asimov The Rebellious Stars / Roger Dee An Earth Gone Mad (1954)
- D-094 SF Murray Leinster The Other Side of Here / A. E. van Vogt One Against Eternity (1955)
- D-096 SF Andre Norton The Last Planet / Alan E. Nourse A Man Obsessed (1955)
- D-099 SF Robert Moore Williams Conquest of the Space Sea / Leigh Brackett The Galactic Breed (1955)
- D-103 SF Philip K. Dick Solar Lottery / Leigh Brackett The Big Jump (1955)
- D-110 SF Isaac Asimov The 1,000 Year Plan / Poul Anderson No World of Their Own (1955)
- D-113 SF Dwight V. Swain The Transposed Man / J. T. McIntosh One in 300 (1955)
- D-118 SF Charles L. Harness The Paradox Men / Jack Williamson Dome Around America (1955)
- D-121 SF Andre Norton The Stars are Ours! / Sam Merwin, Jr. Three Faces of Time (1955)
- D-139 SF Nick Boddie Williams The Atom Curtain / Gordon R. Dickson Alien From Arcturus (1956)
- D-146 SF Lee Correy Contraband Rocket / Murray Leinster The Forgotten Planet (1956)
- D-150 SF Philip K. Dick The World Jones Made / Margaret St. Clair Agent of the Unknown (1956)
- D-162 SF Jerry Sohl The Mars Monopoly / R. DeWitt Miller and Anna Hunger The Man Who Lived Forever (1956)
- D-164 SF Gordon R. Dickson Mankind on The Run / Andre Norton The Crossroads of Time (1956)
- D-173 SF Ray Cummings The Man Who Mastered Time / Joseph E. Kelleam Overlords From Space (1956)
- D-176 SF Thomas Calvert McClary Three Thousand Years / Margaret St. Clair The Green Queen (1956)
- D-193 SF Philip K. Dick The Man Who Japed / E. C. Tubb The Space-Born (1956)
- D-199 SF Poul Anderson Planet of No Return / Andre Norton Star Guard (1956)
- D-205 SF Donald A. Wollheim (ed.) The Earth in Peril / Lan Wright Who Speaks of Conquest? (1957)
- D-215 SF Eric Frank Russell Three To Conquer / Robert Moore Williams Doomsday Eve (1957)
- D-223 SF Robert Silverberg The 13th Immortal / James E. Gunn This Fortress World (1957)
- D-227 SF H. Beam Piper and John J. McGuire Crisis in 2140 / Cyril Judd Gunner Cade (1957)
- D-237 SF Robert Silverberg Master of Life and Death / James White The Secret Visitors (1957)
- D-242 SF A. E. van Vogt Empire of the Atom / Frank Belknap Long Space Station 1 (1957)
- D-249 SF Philip K. Dick The Cosmic Puppets / Andre Norton (as Andrew North) Sargasso of Space (1957)
- D-255 SF Kenneth Bulmer City Under the Sea / Poul Anderson Star Ways (1957)
- D-266 SF E. C. Tubb The Mechanical Monarch / Charles L. Fontenay Twice Upon A Time (1958)
- D-277 SF Murray Leinster City on The Moon / Donald A. Wollheim (ed.) Men on The Moon (1958)
- D-286 SF Robert Silverberg Invaders From Earth / Donald A. Wollheim (as David Grinnell) Across Time (1958)
- D-291 SF Robert Silverberg (as Calvin M. Knox) Lest We forget Thee, Earth / Raymond Z. Gallun People Minus X (1958)
- D-295 SF Jack Vance Big Planet / The Slaves of The Klau (1958)
- D-299 SF Andre Norton Star Born / H. Beam Piper and John J. McGuire A Planet For Texans (1958)
- D-303 SF Poul Anderson The Snows of Ganymede / War of the Wing-Men (1958)
- D-311 SF Robert Silverberg Stepsons of Terra / Lan Wright A Man Called Destiny (1958)
- D-315 SF Eric Frank Russell The Space Willies / Six Worlds Yonder (1958)
- D-322 SF Robert Moore Williams The Blue Atom / The Void Beyond and Other Stories (1958)
- D-331 SF Kenneth Bulmer The Secret of Zi / Ray Cummings Beyond the Vanishing Point (1958)
- D-335 SF Poul Anderson The War of Two Worlds / John Brunner Threshold of Eternity (1959)
- D-345 SF Andre Norton (as Andrew North) Plague Ship / Voodoo Planet (1959)
- D-351 SF Edmond Hamilton The Sun Smasher / Robert Silverberg (as Ivar Jorgenson) Starhaven (1959)
- D-358 SF Robert Silverberg (as Calvin M. Knox) The Plot Against Earth / Milton Lesser Recruit for Andromeda (1959)
- D-362 SF John Brunner The 100th Millennium / Donald A. Wollheim (as David Grinnell) Edge of Time (1959)
- D-369 SF Brian W. Aldiss Vanguard From Alpha / Kenneth Bulmer The Changeling Worlds (1959)
- D-375 SF Damon Knight Masters of Evolution / George O. Smith Fire in the Heavens (1959)
- D-381 SF Jerry Sohl One Against Herculum / Andre Norton Secret of the Lost Race (1959)
- D-385 SF John Brunner Echo In The Skull / Alan E. Nourse Rocket To Limbo (1959)
- D-391 SF John Brunner The World Swappers / A. E. van Vogt Siege of the Unseen (1959)
- D-403 SF Murray Leinster The Mutant Weapon / The Pirates of Zan (1959)
- D-407 SF Poul Anderson We Claim These Stars! / Robert Silverberg The Planet Killers (1959)
- D-413 SF Harlan Ellison The Man With Nine Lives / A Touch of Infinity (1959)
- D-421 SF Philip K. Dick Dr. Futurity / John Brunner Slavers of Space (1960)
- D-427 SF Robert Moore Williams World of the Masterminds / To the Edge of Time and Other Stories (1960)
- D-431 SF A. E. van Vogt Earth's Last Fortress / George O. Smith Lost in Space (1960)
- D-437 SF Andre Norton The Sioux Spaceman / Richard Wilson And Then The Town Took Off (1960)
- D-443 SF Manly Wade Wellman The Dark Destroyers / Brian W. Aldiss Bow Down to Nul (1960)
- D-449 SF Gordon R. Dickson The Genetic General / Time to Teleport (1960)
- D-453 SF Kenneth Bulmer The Earth Gods Are Coming / Margaret St. Clair The Games of Neith (1960)
- D-457 SF Philip K. Dick Vulcan's Hammer / John Brunner The Skynappers (1960)
- D-465 SF John Brunner The Atlantic Abomination / Donald A. Wollheim (as David Grinnell) The Martian Missile (1960)
- D-471 SF John Brunner Sanctuary in the Sky / Jack Sharkey The Secret Martians (1960)
- D-479 SF Wilson Tucker To the Tombaugh Station / Poul Anderson Earthman Go Home! (1960)
- D-485 SF Robert A. W. Lowndes The Puzzle Planet / Lloyd Biggle, Jr. The Angry Espers (1961)
- D-491 SF Fritz Leiber The Big Time / Fritz Leiber The Mind-Spider and Other Stories (1961)
- D-497 SF John Brunner (as Keith Woodcott) I Speak For Earth / Ray Cummings Wandl The Invader (1961)
- D-507 SF Kenneth Bulmer Beyond the Silver Sky / John Brunner Meeting At Infinity (1961)
- D-509 SF Andre Norton The Beast Master / Star Hunter (1961)
- D-517 SF Clifford Simak The Trouble With Tycho / A. Bertram Chandler Bring Back Yesterday (1961)
Read more about this topic: List Of Ace SF Double Titles
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