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In January 1969, Ace Books switched from a letter-series code for its books to a numeric series. The number does not indicate sequence of publication, unlike the number in the letter series codes; instead it identifies the alphabetic position of the title. It was assigned by dividing the range 00001-99999 into 26 sections, one for each letter of the alphabet, and then assigning the code depending on the first letters of the title. As can be seen from the list below, this approach was evidently not followed in every case, but it accounts for the great majority of the codes.

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  • In January 1969, Ace Books switched from a letter-series code for its books to a numeric series. The number does not indicate sequence of publication, unlike the number in the letter series codes; instead it identifies the alphabetic position of the title. It was assigned by dividing the range 00001-99999 into 26 sections, one for each letter of the alphabet, and then assigning the code depending on the first letters of the title. As can be seen from the list below, this approach was evidently not followed in every case, but it accounts for the great majority of the codes. The number is also part of the ISBN, for the later titles; the ISBN for a book (if it has one) can be formed by prefixing "0" for English language/US, and "441" (Ace's publisher number), to the serial number, and then calculating the last digit with an ISBN check digit calculator. For example, Christopher Stasheff's has serial number 21599; the ISBN is 0-441-21599-8. This list is very incomplete. * 00075 SF John Jakes * 00078 SF Peter George (as Peter Bryant) Red Alert (1958) * 00078 SF R.A. Salvatore * 00092 NA John Macklin * 00093 SF Fred Saberhagen * 00094 SF Leigh Brackett The Big Jump * 00104 SF Mack Reynolds * 00106 NA John Macklin * 00107 SF James White * 00108 SF Roger Zelazny Four for Tomorrow * 00109 SF Mark S. Geston Lords of the Starship * 00110 SF Fritz Leiber Swords in the Mist * 00111 SF John W. Campbell Invaders from the Infinite * 00119 SF William Shatner * 00125 SF * 00142 SF Steve Perry (1995) * 00153 SF Fritz Leiber Swords Against Wizardry * 00241 NA (1969) * 00265 SF Mack Reynolds * 00275 SF Donald A. Wollheim (ed.) (1971) * 00289 SF William Shatner * 00348 SF Greg Bear Blood Music (1996) * 00390 SF William Shatner * 00950 SF Ron Goulart (1970) * 00958 SF Mack Reynolds (1977) * 00990 SF / Dean R. Koontz (May 1972) * 01000 SF John Brunner * 01040 SF * 01041 SF * 01042 SF * 01043 SF * 01066 SF Poul Anderson * 01501 SF Robert A. Heinlein The Worlds of Robert A. Heinlein * 01570 SF Fletcher Pratt Alien Planet * 01625 NA Dick Lupoff and Don Thompson (ed.) (1970) * 01685 SF Gordon R. Dickson / * 01750 SF Robert E. Howard Almuric * 01770 SF Leigh Brackett (1976) * 02236 SF Stanley Schmidt (ed.) * 02255 SF A. E. van Vogt (April 1977) * 02268 SF Joanna Russ And Chaos Died (1970) * 02274 SF Donald R. Bensen And Having Writ... (1978) * 02276 MY Philip Loraine (1961) * 02295 SF Keith Roberts (1970) * 02320 SF Alexei Panshin * 02380 SF Tim Powers The Anubis Gates * 02900 NA John Jakes (as Jay Scotland) Arena * 02935 SF Philip Francis Nowlan Armageddon 2419 A.D. * 02936 SF Philip Francis Nowlan Armageddon 2419 A.D. * 02938 SF Philip Francis Nowlan Armageddon 2419 A.D. * 02940 NA Rona Randall (1972) * 03297 SF Jack Vance The Asutra * 03300 SF John Brunner (1960) * 03322 SF Edgar Rice Burroughs At the Earth's Core * 03325 SF Edgar Rice Burroughs At the Earth's Core * 03326 SF Edgar Rice Burroughs At the Earth's Core (1978) * 03328 SF Edgar Rice Burroughs At the Earth's Core (1985) * 04040 SF Joanna Russ Picnic on Paradise * 04591 SF Samuel R. Delany Babel-17 (1966) * 04592 SF Samuel R. Delany Babel-17 (1974) * 04612 WE / (1972) * 04636 SF Edgar Rice Burroughs Back to the Stone Age * 04722 SF Samuel R. Delany * 04745 NA Edgar Rice Burroughs The Bandit of Hell's Bend * 04745 WE Edgar Rice Burroughs The Bandit of Hell's Bend * 04755 NA * 04760 SF Tom Purdom (1972) * 04860 SF A. E. van Vogt (1971) * 05330 SF Jack London Before Adam * 05404 SF Fred Saberhagen Berserker * 05407 SF Fred Saberhagen * 05408 SF Fred Saberhagen (1980) * 05424 SF Fred Saberhagen * 05454 SF Edward L. Ferman (ed.) (1966) * 05455 SF Edward L. Ferman (ed.) * 05456 SF Edward L. Ferman (ed.) * 05457 SF Edward L. Ferman (ed.) * 05458 SF Edward L. Ferman (ed.) (1973) * 05460 SF Edward L. Ferman (ed.) * 05461 SF Edward L. Ferman (ed.) (1978) * 05475 SF Lester Del Rey (ed.) (1972) * 05476 SF Lester Del Rey (ed.) * 05477 SF Lester Del Rey (ed.) (1974) * 05478 SF Lester Del Rey (ed.) (1977) * 05479 SF Lester Del Rey (ed.) (1977) * 05481 SF Mack Reynolds The Best Ye Breed * 05496 SF Fred Saberhagen * 05500 SF Robert A. Heinlein Between Planets * 05586 SF John Varley The Golden Globe * 05595 SF John Rackham / Kenneth Bulmer (February 1971) * 05655 SF Edgar Rice Burroughs Beyond the Farthest Star (1973) * 05656 SF Edgar Rice Burroughs Beyond the Farthest Star * 05785 NA Shepherd Mead * 06061 SF Leigh Brackett The Big Jump (1976) * 06171 SF Jack Vance Big Planet (1978) * 06177 SF Keith Laumer * 06505 MY Cornell Woolrich The Black Angel (1965) * 06530 SF Michael Moorcock The Black Corridor * 06612 SF Mack Reynolds / (August 1972) * 06615 SF Fred Saberhagen * 06701 SF John W. Campbell The Black Star Passes * 06707 SF Brian M. Stableford / Emil Petaja (February 1970) * 06715 NA (1969) * 06760 WE Ray Hogan / (1969) * 06854 SF Marion Zimmer Bradley The Bloody Sun * 07012 SF L. Sprague de Camp and Catherine Crook De Camp The Bones of Zora * 07080 NA (1979) * 07162 SF John Brunner * 07180 SF Marion Zimmer Bradley * 07200 SF Jack Vance * 07690 SF Murray Leinster * 07840 SF Ray Cummings * 07895 SF Andre Norton (1973) * 07921 MY Cornell Woolrich The Bride Wore Black * 08145 SF John Rankine * 08215 SF Fred Saberhagen * 08560 WE / Louis Trimble (1973) * 09022 SF * 09037 SF Spider Robinson Callahan's Crosstime Saloon (1977) * 09069 SF Spider Robinson Callahan's Crosstime Saloon * 09072 SF Spider Robinson Callahan's Lady (1989) * 09102 NA Nancy Buckingham * 09128 SF * 09135 WE Canyon War / (1969) * 09200 SF Edgar Rice Burroughs Carson of Venus * 09203 SF Edgar Rice Burroughs Carson of Venus * 09205 SF Edgar Rice Burroughs Carson of Venus (1982) * 09265 SF Andre Norton Catseye * 09281 SF Edgar Rice Burroughs The Cave Girl * 09284 SF Edgar Rice Burroughs The Cave Girl * 10150 SF * 10258 SF Margaret St. Clair (1974) * 10293 SF Ken Bulmer / John Rackham (July 1972) * 10307 SF Ursula K. Le Guin City of Illusions (1967) * 10410 SF A. E. van Vogt Children of Tomorrow * 10411 SF A. E. van Vogt Children of Tomorrow * 10471 NA Chisum (1970) * 10600 SF Robert A. Heinlein Citizen of the Galaxy * 10621 SF Clifford D. Simak City * 10665 WE Giles A. Lutz The Challenger / (1960) * 10701 SF Ursula K. Le Guin City of Illusions (1967) * 10702 SF Ursula K. Le Guin City of Illusions * 11036 SF Philip K. Dick Clans of the Alphane Moon (1972) * 11182 SF Ron Goulart / (March 1971) * 11222 NA Nancy Buckingham * 11451 SF A. Bertram Chandler / (November 1972) * 11457 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan the Freebooter * 11467 SF Robert E. Howard, Björn Nyberg, and L. Sprague de Camp Conan the Avenger (Conan #10) * 11530 WE Dwight Bennett Newton (as Clement Hardin) / Louis Trimble (1970) * 11546 SF Leigh Brackett (1976) * 11555 SF A. Bertram Chandler / * 11556 SF A. Bertram Chandler / (same cover as 11555-1) * 11560 SF Suzette Haden Elgin / Louis Trimble (October 1970) * 11603 SF Robert E. Howard (edited by L. Sprague de Camp) Conan the Conqueror (Conan #9) * 11622 SF Anthony Boucher (1969) * 11630 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan * 11633 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan the Wanderer * 11650 SF Mack Reynolds / Code Duello (February 1973) * 11659 SF Andrew J. Offutt Conan the Mercenary (1981) * 11669 SF L. Sprague de Camp (ed.) The Spell of Conan (1980) * 11670 SF L. Sprague de Camp (ed.) The Blade of Conan (1979) * 11671 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan (1967) * 11672 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan of Cimmeria * 11673 SF Robert Howard, L. Sprague de Camp, and Lin Carter Conan the Freebooter * 11674 SF Robert E. Howard, L. Sprague de Camp, and Lin Carter Conan the Wanderer * 11675 SF Robert E. Howard and L. Sprague de Camp Conan the Adventurer * 11676 SF L. Sprague de Camp and Lin Carter Conan the Buccaneer * 11677 SF Robert E. Howard and L. Sprague de Camp Conan the Warrior * 11678 SF Robert E. Howard and L. Sprague de Camp Conan the Usurper * 11679 SF Robert E. Howard (ed. L. Sprague de Camp) Conan the Conqueror * 11680 SF Robert E. Howard, Björn Nyberg, and L. Sprague de Camp Conan the Avenger * 11681 SF L. Sprague de Camp and Lin Carter Conan of the Isles * 11682 SF L. Sprague de Camp and Lin Carter Conan of Aquilonia * 11684 SF Andrew J. Offutt Conan and the Sorcerer (1979) * 11705 SF Robert Silverberg Conquerors from the Darkness / * 11738 WE / Dan J. Stevens (1973) * 11759 SF H. Beam Piper * 11785 WE / Louis Trimble * 11863 SF Robert E. Howard and L. Sprague de Camp Conan the Freebooter * 12126 SF Philip K. Dick The Crack in Space (1966) * 12140 SF Brian M. Stableford / Ken Bulmer (August 1969) * 12311 SF Andre Norton The Crossroads of Time * 12313 SF Andre Norton The Crossroads of Time (1978) * 13245 SF Alan Dean Foster * 13600 SF Margaret St. Clair (1973) * 13612 SF Robert E. Howard and L. Sprague de Camp Conan the Freebooter * 13681 NA * 13783 SF A. Bertram Chandler / (May 1971) * 13793 SF Dean R. Koontz / (November 1970) * 13795 SF Andre Norton * 13798 SF A. E. van Vogt * 13805 SF John Rackham / (June 1971) * 13898 SF Robert Silverberg and Randall Garrett (jointly as Robert Randall) The Dawning Light (1982) * 13902 SF Barry Malzberg * 13921 SF Thomas Burnett Swann * 13960 SF Mack Reynolds * 13972 SF Brian M. Stableford Days of Wrath * 13994 SF Andre Norton * 14000 SF Brian M. Stableford * 14153 MY Cornell Woolrich (as William Irish) Deadline at Dawn * 14165 MY Jack Vance (as John Holbrook Vance) The Deadly Isles * 14193 WE Nelson Nye / * 14194 WE Nelson Nye * 14195 WE / (1970) * 14198 WE * 14215 SF Greg Benford * 14235 SF Andre Norton The Defiant Agents (1978) * 14236 SF Andre Norton The Defiant Agents * 14240 WE Die-Hard * 14244 SF James Schmitz The Demon Breed (1979) * 14247 WE Edgar Rice Burroughs (1940) * 14249 SF Andre Norton The Defiant Agents * 14250 SF Mack Reynolds / (October 1973) * 14251 SF Poul Anderson, Mildred Downey Broxon, Michael Whelan, and Alicia Austin (1979) * 14256 NA Walter Scott * 14258 NA David Rome (1968) * 14265 WE / Norman A. Daniels (1970) * 14277 SF James Baen (ed.) (April – June, 1979) * 14879 SF * 14903 SF Frank Herbert Direct Descent * 15238 SF * 15670 SF Philip K. Dick (1976) * 15697 SF Philip K. Dick Dr. Futurity / The Unteleported Man (September 1972) * 15890 SF Marion Zimmer Bradley The Door Through Space / A. Bertram Chandler The Rim of Space (February 1972) * 16600 SF Fred Saberhagen (1972) * 16640 SF Jack Vance The Dragon Masters / (April 1972) * 16641 SF Jack Vance The Dragon Masters / The Last Castle (April 1973) * 16647 SF Andre Norton Dragon Magic * 16648 SF Jack Vance The Dragon Masters * 16651 SF Jack Vance * 16668 SF John Brunner * 16669 SF Andre Norton (1970) * 16670 SF Andre Norton (1970) * 16701 SF Roger Zelazny The Dream Master * 16728 SF Larry Niven and Steven Barnes Dream Park (1983) * 17000 WE Dan J. Stevens / (1969) * 17235 WE / (1970) * 17239 SF Ben Bova * 17625 SF Frank Herbert Dune * 17810 NA (1975) * 18630 SF Gordon Eklund (1970) * 18770 SF Edgar Rice Burroughs Master of Adventure (1968) * 19640 NA Eliot Asinof Eight Men Out (1963) * 19681 SF Samuel R. Delany The Einstein Intersection * 19710 SF Bob Shaw * 20275 SF Alan Garner Elidor * 20556 SF H. Beam Piper Empire * 20563 SF Fred Saberhagen Empire of the East * 20565 SF Barrington J. Bayley Empire of Two Worlds * 20571 SF Samuel R. Delany Empire Star / The Ballad of Beta-2 (November 1973) * 20656 SF Keith Laumer (1985) * 20660 SF Marion Zimmer Bradley (1975) * 20661 SF Marion Zimmer Bradley (1979) * 20664 SF Jerry Pournelle * 20670 SF Judith Merril (ed.) * 20724 SF Poul Anderson Ensign Flandry (1979) * 20730 SF Keith Laumer * 21430 SF Mack Reynolds * 21562 SF Edgar Rice Burroughs Escape on Venus * 21567 SF Edgar Rice Burroughs Escape on Venus * 21590 SF James White The Escape Orbit (1983) * 21599 SF Christopher Stasheff * 21803 SF Edgar Rice Burroughs The Eternal Savage * 21804 SF Edgar Rice Burroughs The Eternal Savage * 21806 SF Edgar Rice Burroughs The Eternal Savage * 21885 SF Jerry Pournelle Exiles to Glory (1977) * 22215 SF Jerry Pournelle Exiles to Glory * 22216 SF Jerry Pournelle Exiles to Glory * 22327 NA Hans Holzer * 22365 SF Andre Norton * 22368 SF Andre Norton * 22374 SF Frank Herbert * 22375 SF Andre Norton * 22386 SF Philip K. Dick Eye in the Sky (1975) * 22387 SF Philip K. Dick Eye in the Sky (1980) * 22388 SF (1988) * 22500 SF Jack Vance * 22576 SF Marion Zimmer Bradley Falcons of Narabedla / (December 1972) * 22577 SF Marion Zimmer Bradley Falcons of Narabedla (1979) * 22600 SF Dean R. Koontz / Kenneth Bulmer (January 1969) * 22640 SF Samuel R. Delany The Fall of the Towers * 22680 NA * 22690 SF Barry N. Malzberg The Falling Astronauts (1971) * 22742 NA * 22811 SF A. E. van Vogt (1968) * 22812 SF A. E. van Vogt * 22819 SF Edmund Cooper A Far Sunset * 22830 SF D. G. Compton * 23140 SF Dean R. Koontz / E. C. Tubb Toyman (May 1969) * 23189 SF H. Beam Piper Federation (1982) * 23419 SF H. Beam Piper (ed. Michael Kurland) (1982) * 23775 SF Barry N. Malzberg (as ) / John Rackham (October 1969) * 23929 SF Dennis Schmidt * 23998 SF Shariann Lewitt * 24035 SF Mack Reynolds and Mercenary from Tomorrow * 24100 SF John Rackham / (May 1970) * 24302 NA (1970) * 24415 NA John Michell (1967) * 24590 SF R. A. Lafferty Fourth Mansions (1969) * 24800 SF Jules Verne For the Flag (1961) * 24806 SF David C. Smith and Richard Tierney (1981) * 24890 SF H. Beam Piper / * 24892 SF H. Beam Piper / H. Beam Piper and John J. McGuire * 24903 SF Roger Zelazny * 24925 WE / * 24975 NA Jack Vance (as John Holbrook Vance) (1968) * 25165 NA (1969) * 25300 NA Georgette Heyer Friday's Child (1946) * 25306 SF Arsen Darnay (1976) * 25460 SF * 25461 SF * 25950 SF Suzette Haden Elgin (1971) * 25980 SF A. E. van Vogt (1973) * 26176 SF H. Beam Piper * 26181 SF William Tuning * 26192 SF H. Beam Piper * 26194 SF H. Beam Piper * 26196 SF H. Beam Piper * 27226 SF Andre Norton Galactic Derelict * 27228 SF Andre Norton Galactic Derelict * 27229 SF Andre Norton Galactic Derelict (1978) * 27232 SF Jack Vance Galactic Effectuator (1981) * 27235 SF and / Positive Charge (April 1970) * 27240 SF Mack Reynolds * 27251 WE Barry Cord / (1967) * 27310 SF Philip K. Dick The Game-Players of Titan (1972) * 27346 SF Philip K. Dick and Ray Nelson The Ganymede Takeover (1977) * 27376 WE / (1964) * 27389 SF Philip José Farmer The Gates of Creation (1981) * 27400 SF Neal Barrett, Jr. / Barry N. Malzberg (as ) (December 1970) * 27415 SF Barry N. Malzberg (as ) / (September 1971) * 27419 SF Edmund Cooper A Far Sunset (1977) * 27501 SF Samuel R. Delany The Fall of the Towers * 27910 SF Howard Fast * 28702 SF James P. Blaylock The Stone Giant (1989) * 28911 NA Edgar Rice Burroughs The Girl from Hollywood * 28914 NA Michael Avallone (1974) * 29350 NA Harlan Ellison The Glass Teat (1970) * 29400 SF L. Sprague de Camp The Glory That Was (1979) * 29525 SF Robert E. Howard * 29741 NA Todhunter Ballard (1965) * 29743 NA Todhunter Ballard (1965) * 29786 NA Peter Bourne * 30261 SF Frank Herbert The Green Brain * 30262 SF Frank Herbert The Green Brain * 30263 SF Frank Herbert The Green Brain * 30274 SF Lucius Shepard Green Eyes (1984) * 30295 SF Charles de Lint Greenmantle (1988) * 30300 SF Fritz Leiber / (March 1969) * 30301 SF Fritz Leiber * 30590 SF Louis Trimble and * 30600 SF Edwin L. Arnold Gulliver of Mars (1905) * 30701 WE Nelson Nye / (1965) * 30710 WE Giles A. Lutz * 30850 WE / (1969) * 31557 SF Andre Norton The X Factor * 31590 SF Leigh Brackett (1973) * 31725 NA Shirley Jackson Hangsaman * 31739 WE / (1972) * 31755 SF A. Bertram Chandler / (October 1972) * 31781 NA * 31800 SF Robert A. Heinlein Have Space Suit - Will Travel * 31801 SF Robert A. Heinlein Have Space Suit - Will Travel * 31930 NA (1976) * 31940 NA (1978) * 31941 NA Charley Walters (1979) * 31986 SF David Drake Hammer's Slammers * 32725 WE Nelson Nye (1970) * 32335 NA Anonymous (1970) * 32575 NA The Hell Bent Kid * 32718 WE Barry Cord / * 32800 SF Frank Herbert Heretics of Dune (1987) * 33460 WE Louis Trimble Wild Horse Range / (1963) * 33700 SF Andre Norton High Sorcery * 33701 SF Andre Norton High Sorcery (1970) * 33704 SF Andre Norton High Sorcery * 33710 SF Neal Barrett Jr. / Barrington Bayley Annihilation Factor (January 1972) * 34245 SF Fred Saberhagen (1978) * 34250 NA (1970) * 34260 NA (1973) * 34345 SF Orson Scott Card * 34361 NA Nancy Buckingham * 34440 NA (1973) * 34441 NA (1974) * 34458 SF Glenn Lord (ed.) * 34900 SF * 35241 SF Andre Norton * 35804 SF Edgar Rice Burroughs I Am a Barbarian * 35805 SF Edgar Rice Burroughs I Am a Barbarian (1978) * 35840 SF Andre Norton (1970) * 35843 SF Andre Norton * 35844 SF Andre Norton (1993) * 35854 SF Kim Stanley Robinson Icehenge (1984) * 36300 NA Ron Goulart (1971) * 37062 SF A. Bertram Chandler / (June 1972) * 37063 SF A. Bertram Chandler / * 37064 SF A. Bertram Chandler / * 37088 SF * 37090 SF Mark Adlard (1971) * 37100 SF Arthur K. Barnes Interplanetary Hunter (1972) * 37106 SF Brian M. Stableford * 37108 SF A. Bertram Chandler / * 37109 SF A. Bertram Chandler / * 37130 SF Robert Silverberg / * 37217 SF Colin Kapp (1978) * 37250 SF Marion Zimmer Bradley / John Rackham (April 1969) * 37291 SF Andre Norton (1974) * 37292 SF Andre Norton (1981) * 37365 SF Robert E. Howard / * 37381 NA (1975) * 37382 NA (1976) * 37421 NA H. G. Wells The Island of Dr. Moreau (1977) * 37425 SF Avram Davidson (1969) * 37465 SF Roger Zelazny Isle of the Dead (1969) * 37466 SF Roger Zelazny Isle of the Dead (1974) * 37468 SF Roger Zelazny Isle of the Dead (1976) * 37470 SF Roger Zelazny Isle of the Dead (1982) * 37598 NA Gil Brewer (1969) * 37599 NA Gil Brewer (1969) * 37600 NA Gil Brewer (1970) * 37797 SF Esther Friesner * 38120 SF John Brunner The Jagged Orbit (1969) * 38122 SF John Brunner The Jagged Orbit * 38287 SF Jerry Pournelle * 38500 WE / (1971) * 38536 SF E. C. Tubb (1982) * 38570 SF C. L. Moore Jirel of Joiry * 40590 NA Ron Goulart (1972) * 40850 SF Robert Sheckley * 41550 NA (1975) * 41550 SF Andre Norton * 41551 SF Andre Norton * 41841 NA William Burroughs Junkie (1964) * 42800 SF E. C. Tubb / (September 1969) * 42801 SF E. C. Tubb * 42900 SF Lin Carter / George H. Smith Kar Kaballa (November 1969) * 43525 SF Dennis Schmidt Kensho * 43672 SF Andre Norton (1978) * 43679 SF Andre Norton * 44470 SF Edgar Wallace and Merian C. Cooper King Kong (1976) * 44485 SF Christopher Stasheff King Kobold * 44489 SF Christopher Stasheff * 44512 NA Kingdom of the Spiders (1977) * 45000 SF Andre Norton (1976) * 45001 SF Andre Norton * 46272 SF Edgar Rice Burroughs The Lad and the Lion (1978) * 46850 SF Thomas Burnett Swann * 46996 SF Edgar Rice Burroughs Land of Terror * 46997 SF Edgar Rice Burroughs Land of Terror * 47000 SF Edgar Rice Burroughs Land of Terror * 47013 SF Edgar Rice Burroughs * 47020 SF Edgar Rice Burroughs The Land That Time Forgot * 47022 SF Edgar Rice Burroughs The Land That Time Forgot * 47023 SF Edgar Rice Burroughs The Land That Time Forgot * 47026 SF Edgar Rice Burroughs The Land That Time Forgot * 47042 SF Jack Vance The Languages of Pao * 47161 SF Andre Norton The Last Planet * 47162 SF Andre Norton The Last Planet (1972) * 47200 WE / (1969) * 47440 SF Andre Norton (1977) * 47800 SF Ursula K. Le Guin The Left Hand of Darkness (1969) * 47805 SF Ursula K. Le Guin The Left Hand of Darkness (1976) * 48245 SF John T. Phillifent / William Barton (August 1973) * 48494 SF H. Beam Piper Little Fuzzy * 48520 SF Fred Saberhagen * 48755 WE / Louis Trimble (1971) * 48862 NA Charles Fort Lo! * 48877 WE Giles A. Lutz * 48885 WE Brian Garfield (as Brian Wynne) / (1973) * 48918 WE Nelson Nye Long Run * 48970 SF Mack Reynolds (1973) * 49051 SF H. Beam Piper Lord Kalvan of Otherwhen * 49236 SF Andre Norton * 49252 SF Philip José Farmer Lord of the Trees / The Mad Goblin (May 1970) * 49294 SF Edgar Rice Burroughs The Lost Continent * 49301 WE / (1965) * 49501 SF Edgar Rice Burroughs Lost on Venus * 49504 SF Edgar Rice Burroughs Lost on Venus * 49506 SF Edgar Rice Burroughs Lost on Venus * 49507 SF Edgar Rice Burroughs Lost on Venus * 49548 SF Fred Saberhagen * 49851 SF Allen Steele * 50485 SF Allen Steele * 50531 SF Jack Vance Madouc * 51356 SF Steve Perry (1986) * 51375 SF Philip José Farmer / Philip José Farmer Lord of the Trees (September 1970) * 51388 SF Michael Moorcock The Mad God's Amulet * 51401 SF Edgar Rice Burroughs The Mad King * 51402 SF Edgar Rice Burroughs The Mad King * 51403 SF Edgar Rice Burroughs The Mad King * 51404 SF Edgar Rice Burroughs The Mad King * 51409 SF Edgar Rice Burroughs The Mad King * 51544 SF Larry Niven The Magic Goes Away (1978) * 51550 NA (1965) * 51590 SF John Eric Holmes Mahars of Pellucidar * 51624 SF Philip José Farmer The Maker of Universes * 51626 NA Rachel Cosgrove Payes (1970) * 51642 WE Ray Hogan * 51647 SF Brian Aldiss The Malacia Tapestry (1976) * 51700 NA David McDaniel (1969) * 51701 NA Peter Leslie (1968) * 51702 NA John T. Phillifent * 51702 SF Edgar Rice Burroughs The Mad King * 51703 NA John T. Phillifent (1967) * 51704 NA Joel Bernard (1967) * 51705 NA (as ) * 51706 NA Peter Leslie (1966) * 51910 SF Philip K. Dick The Man Who Japed (1975) * 51918 SF Steve Perry The Man Who Never Missed (1986) * 51941 NA Bruce Cassiday (1971) * 51943 SF * 52035 WE / * 52075 SF Henry Kuttner, Bob Pepper, and Alicia Austin (1971) * 52077 SF Fred Saberhagen * 52078 SF Fred Saberhagen * 52110 NA (1973) * 52180 SF / (July 1970) * 52207 SF Steve Perry (1986) * 52400 SF John Brunner * 52470 SF Donald A. Wollheim (ed.) * 52560 SF Alan E. Nourse * 52740 WE (1969) * 52975 SF Gerard F. Conway * 53151 SF John W. Campbell The Mightiest Machine * 53167 SF Algis Budrys, , and Martin Harry Greenberg (eds.) (1992) * 53183 SF John Varley Millennium * 53299 SF Spider Robinson Mindkiller * 53355 SF Ian Watson * 53415 SF John T. Phillifent Hierarchies / Doris Piserchia (May 1973) * 53503 SF Andrew J. Offutt * 53540 SF George Zebrowski * 53540 WE / Brian Garfield (as Brian Wynne) (1954) * 53570 SF D. G. Compton (1972) * 53587 SF Edgar Rice Burroughs The Monster Men * 53588 SF Edgar Rice Burroughs The Monster Men * 53591 SF Edgar Rice Burroughs The Monster Men * 53701 SF Edgar Rice Burroughs The Moon Maid * 53702 SF Edgar Rice Burroughs The Moon Maid * 53703 SF Edgar Rice Burroughs The Moon Maid * 53705 SF Edgar Rice Burroughs The Moon Maid * 53719 SF Charles de Lint Moonheart (1984) * 53753 SF Edgar Rice Burroughs The Moon Men * 53756 SF Edgar Rice Burroughs The Moon Men * 53780 SF John W. Campbell The Moon is Hell * 54101 SF Andre Norton * 54103 SF Andre Norton * 54104 SF Andre Norton (July 1978) * 54105 SF Andre Norton (May 1981) * 54201 SF Thomas Burnett Swann * 54325 NA Rona Randall (1971) * 54378 NA Virginia Coffman (1963) * 54380 NA Virginia Coffman (1963) * 54460 NA Edgar Rice Burroughs The Mucker (1974) * 54462 SF Edgar Rice Burroughs The Mucker (1914) * 54484 SF Charles de Lint (1985) * 54500 SF Mark Adlard (1975) * 55145 SF Fritz Leiber (1973) * 55309 SF Fred Saberhagen * 56010 SF Gordon R. Dickson * 56940 SF Leigh Brackett (1976) * 57140 WE Ray Hogan / * 57601 WE / Brian Garfield (as Brian Wynne) (1965) * 57752 SF Andre Norton * 57975 NA * 58024 SF Mark E. Rogers (1988) * 58050 SF R. A. Lafferty (1970) * 58601 WE / * 58875 NA (1968) * 58880 SF Sam Lundwall / (January 1971) * 60563 SF Edgar Rice Burroughs The Oakdale Affair * 60564 SF Edgar Rice Burroughs The Oakdale Affair * 60739 SF Fred Saberhagen Octagon (1981) * 60990 WE / (1971) * 61480 NA (compilers) (1968) * 62160 SF Fred Saberhagen (1979) * 62380 SF George Zebrowski * 62938 SF Bob Shaw One Million Tomorrows * 63165 SF Kenneth Bulmer (1972) * 63410 SF Andre Norton * 63590 SF John Rankine (1973) * 63780 SF Bob Shaw Orbitsville * 64146 SF (1987) * 64240 SF Bob Shaw * 64400 SF Philip K. Dick Our Friends from Frolix 8 (1970) * 64401 SF Philip K. Dick Our Friends from Frolix 8 (1977) * 64484 SF Edgar Rice Burroughs * 64512 NA Edgar Rice Burroughs The Outlaw of Torn * 64514 SF Edgar Rice Burroughs The Outlaw of Torn * 65050 SF Bob Shaw * 65125 SF Jack Williamson (1969) * 65169 SF H. Beam Piper Paratime (1981) * 65316 SF Larry Niven The Patchwork Girl (1981) * 65353 SF Fred Saberhagen Octagon * 65390 SF Colin Kapp (1978) * 65412 SF Edgar Rice Burroughs The Outlaw of Torn (1973) * 65430 SF Keith Roberts Pavane (1966) * 65442 NA (1973) * 65852 SF Edgar Rice Burroughs Pellucidar * 65855 SF Edgar Rice Burroughs Pellucidar * 65873 NA Eliot Asinof (1971) * 65874 SF Robert Sheckley The People Trap / * 65890 SF Jack Williamson * 65941 SF Edgar Rice Burroughs The People That Time Forgot * 65942 SF Edgar Rice Burroughs The People That Time Forgot * 65946 SF Edgar Rice Burroughs The People That Time Forgot * 65948 SF Mack Reynolds * 65970 SF K.H. Scheer & Walter Ernsting (1969) * 65971 SF K.H. Scheer & Walter Ernsting (1969) * 65972 SF K.H. Scheer & (1969) * 65973 SF Walter Ernsting & Kurt Mahr (1969) * 65974 SF K.H. Scheer & Kurt Mahr (1970) * 65975 SF Clark Darlton (1971) * 65976 SF K.H. Scheer (1971) * 65977 SF Clark Darlton (1971) * 65978 SF Clark Darlton (1971) * 65979 SF Kurt Mahr (1971) * 65980 SF Kurt Mahr (1972) * 65981 SF Clark Darlton (1972) * 65982 SF K.H. Scheer (1972) * 65983 SF Kurt Mahr (1972) * 65984 SF Clark Darlton (1972) * 65986 SF (1972) * 65987 SF Kurt Mahr (1972) * 66988 SF Kurt Mahr (1972) * 66990 SF Clark Darlton (1972) * 65991 SF Clark Darlton (1972) * 65993 SF K.H. Scheer & Walter Ernsting (1972) (second printing) * 65994 SF K.H. Scheer & Walter Ernsting (1972) (second printing) * 65995 SF K.H. Scheer & (1972) (second printing) * 65996 SF Walter Ernsting & Kurt Mahr (1972) (second printing) * 65997 SF K.H. Scheer & Kurt Mahr (1972) (second printing) * 65998 SF Clark Darlton (second printing) * 65999 SF K.H. Scheer (second printing) * 66004 SF K.H. Scheer (1973) * 66005 SF Kurt Mahr (1973) * 66006 SF Kurt Mahr (1973) * 66007 SF Clark Darlton (1973) * 66008 SF Clark Darlton (1973) * 66009 SF Kurt Brand (1973) * 66010 SF Kurt Mahr (1973) * 66011 SF Clark Darlton (1973) * 66012 SF Clark Darlton (1973) * 66013 SF Kurt Mahr (1973) * 66014 SF K.H. Scheer (1973) * 66015 SF Clark Darlton (1973) * 66016 SF Clark Darlton (1973) * 66017 SF Kurt Brand (1973) * 66018 SF Kurt Mahr (1973) * 66019 SF K.H. Scheer (1973) * 66020 SF Clark Darlton (1974) * 66021 SF Kurt Brand (1974) * 66022 SF Kurt Mahr (1974) * 66023 SF Clark Darlton (1974) * 66024 SF Clark Darlton (1974) * 66025 SF K.H. Scheer (1974) * 66026 SF Kurt Brand (1974) * 66027 SF Clark Darlton (1974) * 66028 SF Kurt Mahr (1974) * 66029 SF K.H. Scheer (1974) * 66030 SF Kurt Brand (1974) * 66031 SF Clark Darlton (1974) * 66032 SF Kurt Mahr (1974) * 66033 SF Clark Darlton (1974) * 66034 SF Kurt Mahr (1974) * 66035 SF K.H. Scheer (1974) * 66036 SF Clark Darlton (1974) * 66037 SF Kurt Mahr (1974) * 66038 SF Clark Darlton (1974) * 66039 SF Clark Darlton (1974) * 66040 SF Clark Darlton (1974) * 66041 SF Kurt Mahr (1974) * 66042 SF Kurt Brand (1974) * 66043 SF Kurt Mahr (1974) * 66044 SF Kurt Mahr (1975) * 66045 SF K.H. Scheer (1975) * 66046 SF Kurt Brand (1975) * 66047 SF Kurt Mahr (1975) * 66048 SF Kurt Mahr (1975) * 66049 SF (1975) * 66050 NA Cornell Woolrich Phantom Lady * 66051 SF K.H. Scheer (1975) * 66052 SF Clark Darlton (1975) * 66053 SF Clark Darlton (1975) * 66054 SF Kurt Brand (1975) * 66055 SF Kurt Mahr (1975) * 66056 SF Kurt Mahr (1975) * 66057 SF Clark Darlton (1975) * 66058 SF Kurt Mahr (1975) * 66059 SF Kurt Brand (1975) * 66060 SF Clark Darlton (1975) * 66061 SF Clark Darlton (1975) * 66062 SF K.H. Scheer (1975) * 66063 SF (1975) * 66064 SF K.H. Scheer (1975) * 66065 SF Kurt Brand (1975) * 66066 SF Kurt Brand (1975) * 66067 SF Clark Darlton (1975) * 66068 SF (1975) * 66069 SF Kurt Mahr (1975) * 66070 SF Clark Darlton (1976) * 66071 SF Clark Darlton (1976) * 66072 SF K.H. Scheer (1976) * 66073 SF Kurt Brand (1976) * 66074 SF Kurt Brand (1976) * 66075 SF (1976) * 66076 SF K.H. Scheer (1976) * 66077 SF Clark Darlton (1976) * 66078 SF Kurt Mahr (1976) * 66079 SF Kurt Mahr (1976) * 66080 SF (1976) * 66081 SF Clark Darlton (1976) * 66082 SF Kurt Mahr (1976) * 66083 SF K.H. Scheer (1976) * 66084 SF Kurt Mahr (1976) * 66085 SF Kurt Brand (1976) * 66086 SF (1976) * 66087 SF Clark Darlton (1976) * 66088 SF Kurt Brand (1976) * 66089 SF Kurt Mahr (1976) * 66090 SF Kurt Brand (1976) * 66091 SF (1977) * 66092 SF K.H. Scheer (1977) * 66093 SF Clark Darlton / Kurt Mahr (1977) * 66094 SF / K. H. Scheer (1977) * 66095 SF Clark Darlton / Kurt Mahr (1977) * 66096 SF Kurt Brand / (1977) * 66097 SF K.H. Scheer / Clark Darlton (1977) * 66098 SF / (1977) * 66099 SF Kurt Mahr / Clark Darlton * 66100 SF Avram Davidson The Phoenix and the Mirror * 66101 SF K.H. Scheer & Walter Ernsting (1974) (third printing) * 66102 SF K.H. Scheer & Walter Ernsting (1974) (third printing) * 66103 SF K.H. Scheer & (1974) (third printing) * 66104 SF Walter Ernsting & Kurt Mahr (1974) (third printing) * 66105 SF K.H. Scheer & Kurt Mahr (1974) (third printing) * 66106 SF Clark Darlton * 66107 SF K.H. Scheer * 66108 SF Clark Darlton * 66109 SF Clark Darlton * 66110 SF Kurt Mahr * 66111 SF Kurt Mahr * 66112 SF Clark Darlton * 66113 SF K.H. Scheer * 66114 SF Kurt Mahr * 66115 SF Clark Darlton * 66116 SF * 66117 SF Kurt Mahr * 66118 SF Kurt Mahr (second printing) * 66119 SF Clark Darlton (second printing) * 66121 SF / * 66128 SF K.H. Scheer / Clark Darlton * 66129 SF Clark Darlton (1978) * 66141 SF and * 66160 SF / and (December 1969) * 66201 SF Joanna Russ Picnic on Paradise * 66320 SF Robert E. Howard Pigeons from Hell (1978) * 66502 SF Edgar Rice Burroughs Pirates of Venus * 66503 SF Edgar Rice Burroughs Pirates of Venus * 66505 SF Edgar Rice Burroughs Pirates of Venus * 66509 SF Edgar Rice Burroughs Pirates of Venus * 66525 SF Murray Leinster / (October 1971) * 66833 SF Andre Norton Plague Ship (1973) * 66900 SF Jack Vance Planet of Adventure #2: Servants of the Wankh * 66901 SF Jack Vance Planet of Adventure #3: The Dirdir (1969) * 66902 SF Jack Vance Planet of Adventure #4: The Pnume (1970) * 66952 SF Ursula K. Le Guin Planet of Exile * 66995 SF Mack Reynolds / (September 1973) * 67020 SF Marion Zimmer Bradley The Planet Savers * 67021 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones * 67025 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones * 67026 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones * 67027 SF Marion Zimmer Bradley The Planet Savers / The Sword of Aldones * 67060 SF John Jakes * 67061 SF John Jakes * 67110 NA Jack Vance (as John Holbrook Vance) (1967) * 67131 NA * 67145 SF Michael Kurland Pluribus * 67402 SF Robert A. Heinlein Podkayne of Mars * 67555 SF Andre Norton Postmarked the Stars (1969) * 67580 WE Ray Hogan / (1973) * 67800 SF Philip K. Dick The Preserving Machine (1969) * 67801 SF Philip K. Dick The Preserving Machine (1976) * 67900 SF Thomas M. Disch The Prisoner (1969) * 67901 SF David McDaniel The Prisoner #2 * 67902 SF Hank Stine The Prisoner #3 (1970) * 67937 SF L. Sprague de Camp The Prisoner of Zhamanak * 68023 SF Gordon R. Dickson * 68305 SF * 68310 SF John Glasby / Ken Bulmer (August 1971) * 69168 SF Arsen Darnay (1981) * 69190 SF L. Sprague de Camp The Purple Pterodactyls: The Adventures of Wilson Newbury, Ensorcelled Financier (1980) * 69540 SF D. G. Compton * 69658 SF L. Sprague de Camp The Queen of Zamba * 69681 SF Andre Norton Quest Crosstime * 69682 SF Andre Norton Quest Crosstime * 69683 SF Andre Norton Quest Crosstime * 69684 SF Andre Norton Quest Crosstime * 69700 SF A. E. van Vogt Quest for the Future * 69770 SF Poul Anderson Question and Answer * 69992 SF Jack L. Chalker * 70350 WE Nelson Nye / (1962) * 71000 NA Manfred von Richthofen The Red Baron (1969) * 71001 NA Manfred von Richthofen The Red Baron * 71065 SF Alfred Coppel (as Robert Cham Gilman) (1968) * 71076 NA * 71082 SF and / E. C. Tubb (April 1971) * 71083 SF E. C. Tubb (1982) * 71100 SF Andre Norton (1979) * 71140 SF Robert A. Heinlein Red Planet * 71156 SF David C. Smith and Richard L. Tierney (1981) * 71157 SF David C. Smith and Richard L. Tierney (1982) * 71158 SF David C. Smith and Richard L. Tierney (1982) * 71159 SF David C. Smith and Richard L. Tierney (1982) * 71160 SF and Red Tide * 71161 SF David C. Smith and Richard L. Tierney (1983) * 71162 SF David C. Smith and Richard L. Tierney (1983) * 71335 SF Philip José Farmer (1970) * 71372 WE Louis Trimble / (1969) * 71435 SF John T. Sladek * 71500 SF A. E. van Vogt The Silkie * 71502 SF Keith Laumer * 71803 SF E. C. Tubb * 71816 NA Edgar Rice Burroughs The Return of the Mucker * 72260 WE Gordon D. Shirreffs / * 72280 NA Edgar Rice Burroughs The Rider (1915) * 72360 WE / Jernigan (1965) * 72400 SF A. Bertram Chandler / (February 1969) * 72401 SF A. Bertram Chandler / * 72402 SF A. Bertram Chandler The Rim of Space / * 72403 SF A. Bertram Chandler / (August 1978) * 72525 WE Brian Garfield (as Frank Wynne) / (1966) * 73100 SF A. Bertram Chandler / * 73101 SF A. Bertram Chandler / * 73102 SF A. Bertram Chandler / * 73293 SF Ursula K. Le Guin Rocannon's World * 73330 SF Robert A. Heinlein Rocket Ship Galileo * 73390 SF Avram Davidson / * 73425 WE (1968) * 73438 SF Kenneth Bulmer * 73440 SF Robert A. Heinlein The Rolling Stones * 73441 SF Robert A. Heinlein The Rolling Stones * 73450 SF Mack Reynolds * 73471 NA Monica Dickens * 73532 SF Andre Norton * 74180 WE Barry Cord / (1973) * 74860 SF Robert A. Heinlein To Sail Beyond the Sunset * 74981 SF Andre Norton Sargasso of Space (1970) * 74982 SF Andre Norton Sargasso of Space * 74983 SF Andre Norton Sargasso of Space (1974) * 74984 SF Andre Norton Sargasso of Space (July 1978) * 74985 SF Andre Norton Sargasso of Space (1981) * 74987 SF Andre Norton Sargasso of Space (September 1985) * 75045 SF Mack Reynolds Satellite City * 75131 SF Edgar Rice Burroughs Savage Pellucidar * 75134 SF Edgar Rice Burroughs Savage Pellucidar * 75136 SF Edgar Rice Burroughs Savage Pellucidar * 75150 WE Ray Hogan Track the Man Down / Savage Range (1965) * 75181 NA * 75441 SF Sam J. Lundwall (1977) * 75520 WE / (1969) * 75617 NA Ray Hogan * 75690 SF George Bamber * 75695 SF Andre Norton * 75696 SF Andre Norton * 75750 NA Sax Rohmer (1970) * 75781 SF Leigh Brackett The Secret of Sinharat / Leigh Brackett People of the Talisman (November 1971) * 75800 SF George Bamber (1971) * 75830 SF Andre Norton * 75831 SF Andre Norton * 75832 SF Andre Norton * 75833 SF Andre Norton (1978) * 75834 SF Andre Norton (1981) * 75835 SF Andre Norton * 75836 SF Andre Norton * 75860 SF Mack Reynolds * 75875 SF Robert Silverberg * 75894 SF Eric Frank Russell * 75940 SF Marion Zimmer Bradley * 75945 NA Ron Goulart (1973) * 75958 NA Brad Steiger (1969) * 75968 WE Nelson Nye / (1963) * 75980 NA * 75987 NA Ruth Abbey (1974) * 76015 WE (1970) * 76096 SF Jeff Sutton / Kenneth Bulmer (June 1970) * 76098 SF Bob Shaw * 76099 SF Robert E. Howard (1983) * 76181 NA Louis L'Amour (as ) * 76219 SF Robert Silverberg and Randall Garrett (jointly as ) The Shrouded Planet (1982) * 76343 SF Charles Sheffield * 76380 SF William F. Temple / William F. Temple (June 1973) * 76385 SF D. G. Compton * 76390 SF Robert Silverberg The Silent Invaders * 76391 SF Robert Silverberg The Silent Invaders (1977) * 76500 SF A. E. van Vogt The Silkie * 76501 SF A. E. van Vogt The Silkie * 76502 SF A. E. van Vogt The Silkie * 76701 SF Philip K. Dick The Simulacra (1976) * 76801 SF Andre Norton * 76802 SF Andre Norton * 76836 SF and (1979) * 76900 WE Dean Owens / (1969) * 76942 SF Harry Harrison (1978) * 76960 SF Lester del Rey Badge of Infamy / The Sky is Falling (January 1973) * 76972 NA Dorothy Eden (1967) * 77051 NA * 77408 SF Rudy Rucker Software * 77410 SF Philip K. Dick Solar Lottery (1974) * 77411 SF Philip K. Dick Solar Lottery (1975) * 77419 SF Gordon R. Dickson Soldier, Ask Not (1982) * 77425 NA * 77427 SF Brian Herbert (ed.) * 77471 NA (1961) * 77520 NA Wayne Lee / * 77525 SF Jack Vance Son of the Tree / The Houses of Iszm (December 1971) * 77551 SF Andre Norton (1970) * 77553 SF Andre Norton (1976) * 77554 SF Andre Norton (1977) * 77555 SF Andre Norton (November 1978) * 77556 SF Andre Norton (May 1983) * 77558 SF Andre Norton (1986) * 77598 NA * 77620 SF Robert E. Howard The Sowers of the Thunder (1979) * 77710 SF / Mack Reynolds (June 1969) * 77730 SF Robert A. Heinlein Space Cadet * 77780 SF H. Beam Piper Space Viking * 77782 SF Mack Reynolds * 77783 SF Mack Reynolds * 77785 SF Eric Frank Russell 6 unrelated stories. / The Space Willies A spoof on Scientology. (July 1971) * 77791 SF Fred Saberhagen * 77841 NA * 77905 NA * 77910 WE Dwight Bennett Newton (as Clement Hardin) / Ray Hogan (1971) * 77918 WE James Powell * 77925 WE / Brian Garfield (as Frank Wynne) (1965) * 77953 SF Marion Zimmer Bradley Star of Danger * 78000 SF Robert A. Heinlein The Star Beast * 78011 SF Andre Norton Star Born (1970) * 78014 SF Andre Norton Star Born (July 1978) * 78015 SF Andre Norton Star Born (February 1980) * 78016 SF Andre Norton Star Born (May 1981) * 78017 SF Andre Norton Star Born (September 1984) * 78035 SF Keith Laumer * 78071 SF Andre Norton Star Gate (June 1971) * 78072 SF Andre Norton Star Gate (February 1974) * 78073 SF Andre Norton Star Gate (March 1977) * 78131 SF Andre Norton Star Guard (June 1973) * 78132 SF Andre Norton Star Guard (June 1974) * 78133 SF Andre Norton Star Guard (March 1977) * 78318 SF Pamela Sargent * 78400 SF John Jakes / Barrington Bayley The Star Virus (August 1970) * 78432 SF Andre Norton The Stars Are Ours * 78477 SF (ed.) (1979) * 78479 SF Ben Bova * 78500 NA Warren Smith (1969) * 78537 SF Robert Sheckley The Status Civilization / Notions: Unlimited * 78565 SF John Varley Steel Beach * 78575 SF D. G. Compton (1970) * 78585 SF Jerry Pournelle * 78650 SF Philip José Farmer (1970) * 78651 SF Philip José Farmer (1973) * 78652 SF Philip José Farmer (1975) * 78653 SF Philip José Farmer (1979) * 78654 SF Philip José Farmer (1980) * 78657 SF Poul Anderson * 78741 SF Andre Norton Storm Over Warlock * 78742 SF Andre Norton Storm Over Warlock (1973) * 78830 WE Giles A. Lutz * 78901 NA Brad Steiger (1966) * 79001 NA * 79034 SF Robert A. Heinlein Stranger in a Strange Land * 79112 SF Marion Zimmer Bradley * 79117 WE / Country (1971) * 79141 SF Leigh Brackett The Sword of Rhiannon * 79150 SF Fritz Leiber Swords Against Death * 79157 SF Fritz Leiber Swords Against Death * 79161 SF Fritz Leiber Swords Against Wizardry * 79165 SF Fritz Leiber Swords Against Wizardry * 79170 SF Fritz Leiber Swords and Deviltry * 79176 SF Fritz Leiber Swords and Deviltry * 79181 SF Fritz Leiber Swords in the Mist * 79185 SF Fritz Leiber Swords in the Mist * 79221 SF Fritz Leiber The Swords of Lankhmar * 79222 SF Fritz Leiber The Swords of Lankhmar * 79431 SF Andre Norton The Stars Are Ours * 79601 WE Roger Spellman / (1965) * 79791 SF Edgar Rice Burroughs Tanar of Pellucidar * 79797 SF Edgar Rice Burroughs Tanar of Pellucidar * 79805 NA * 79854 SF Edgar Rice Burroughs Tarzan at the Earth's Core * 79970 NA Isobel Lambot * 79975 SF E. C. Tubb / E. C. Tubb (March 1972) * 80010 SF William Shatner * 80011 SF William Shatner * 80012 SF William Shatner * 80180 SF James Tiptree, Jr. Ten Thousand Light-Years from Home * 80208 SF William Shatner Tekwar * 80400 WE Nelson Nye * 80575 WE Nelson Nye Thief River * 80661 NA Mildred Davis The Third Half * 80680 SF * 80691 SF Roger Zelazny This Immortal * 80705 SF Robert E. Howard Tigers of the Sea * 80780 SF Robert E. Howard Three-Bladed Doom (1979) * 80801 SF Andre Norton * 80805 SF Andre Norton (1978) * 80855 SF Alexei Panshin The Thurb Revolution (1978) * 80933 SF Spider Robinson Time Pressure (1988) * 81000 SF Clifford D. Simak Time & Again * 81001 SF Clifford D. Simak Time & Again * 81012 SF Keith Laumer The Time Bender * 81125 SF Robert A. Heinlein Time for the Stars * 81126 SF Robert A. Heinlein Time for the Stars * 81237 SF Gordon R. Dickson / * 81251 SF Andre Norton The Time Traders * 81253 SF Andre Norton The Time Traders * 81254 SF Andre Norton The Time Traders (1984) * 81270 SF John Brunner Times Without Number (1969) * 81277 SF Spider Robinson Time Travelers Strictly Cash (1981) * 81610 SF Donald A. Wollheim (as David Grinnell) / E. C. Tubb (March 1970) * 81656 SF Bob Shaw Tomorrow Lies in Ambush * 81670 SF Mack Reynolds * 81680 SF John Jakes / Laurence M. Janifer and (July 1969) * 81861 WE / * 81900 SF Thomas Burnett Swann * 81973 SF E. C. Tubb * 82101 WE Brian Garfield / Louis Trimble (1964) * 82190 WE Harry Whittington / (1965) * 82210 SF John Brunner The Traveler in Black * 82355 SF Andre Norton (1978) * 82401 NA Ernest Haycox Trigger Trio * 82410 WE * 82430 WE Nelson Nye * 82435 WE Barry Cord / (1972) * 82660 SF Robert A. Heinlein Tunnel in the Sky * 83360 WE Barry Cord / * 84000 SF Andre Norton (1970) * 84001 SF Andre Norton (1974) * 84292 SF H. Beam Piper Uller Uprising * 84331 SF John W. Campbell The Ultimate Weapon * 84466 SF Andre Norton (1983) * 84514 SF Andrew Offutt * 84569 SF Axel Madsen Unisave * 84581 SF A. E. van Vogt The Universe Maker * 85456 SF Alan E. Nourse (1987) * 85460 NA Harold E. Hartney * 86022 NA Virginia Coffman * 86050 SF Philip K. Dick (1976) * 86064 SF Fred Saberhagen * 86065 SF Fred Saberhagen * 86180 SF E. C. Tubb * 86181 SF E. C. Tubb (1982) * 86190 SF Ian Watson * 86321 SF Andre Norton (March 1973) * 86322 SF Andre Norton (1975) * 86323 SF Andre Norton (1977) * 86465 WE / Dwight Bennett Newton (as Clement Hardin) (1969) * 86495 SF L. Sprague de Camp The Virgin of Zesh / The Tower of Zanid * 86607 SF Mark Adlard (1972) * 86608 SF Philip K. Dick Vulcan's Hammer (1972) * 86610 SF Andre Norton, Wojciech Siudmak, and Alicia Austin (1980) * 87015 NA Philip Loraine (1967) * 87060 SF Michael Moorcock The Warlord of the Air (1971) * 87070 NA (1975) * 87101 NA Rona Randall * 87180 SF A. E. van Vogt The War Against the Rull * 87201 SF Poul Anderson * 87269 SF George Zebrowski * 87300 SF The Warlock in Spite of Himself * 87301 SF The Warlock in Spite of Himself * 87319 SF Andre Norton * 87321 SF Andre Norton * 87322 SF Andre Norton * 87323 SF Andre Norton (1978) * 87325 SF Christopher Stasheff * 87328 SF Christopher Stasheff * 87332 SF Christopher Stasheff * 87370 NA Herman Raucher * 87625 SF Dennis Schmidt Way-Farer * 87631 SF H.G. Wells War of the Worlds (1988) * 87718 NA Harlan Ellison Web of the City (1983) * 87855 SF A. E. van Vogt * 87873 SF Andre Norton * 87874 SF Andre Norton * 87875 SF Andre Norton * 87941 SF Thomas Burnett Swann * 88010 WE T.V. Olsen * 88065 SF Edmond Hamilton * 88075 NA * 88076 NA (1970) * 88091 SF H. G. Wells When the Sleeper Wakes * 88270 SF Thomas Burnett Swann (1970) * 88440 NA * 88554 NA Dorothy Eden * 88564 SF Rudy Rucker White Light * 88601 SF Clifford D. Simak Why Call Them Back from Heaven? * 89250 SF Marion Zimmer Bradley The Winds of Darkover / John Rackham (January 1970) * 89251 SF Marion Zimmer Bradley The Winds of Darkover * 89301 SF E. C. Tubb Derai / The Winds of Gath (July 1973) * 89590 WE / (1962) * 89701 SF Andre Norton Witch World * 89702 SF Andre Norton Witch World (May 1974) * 89703 SF Andre Norton Witch World * 89704 SF Andre Norton Witch World * 89705 SF Andre Norton Witch World (1978) * 89706 SF Andre Norton Witch World (1982) * 89707 SF Andre Norton Witch World (1984) * 89708 SF Andre Norton Witch World (1986) * 89851 SF James H. Schmitz The Witches of Karres * 90050 NA (1970) * 90075 SF Ursula K. Le Guin A Wizard of Earthsea * 90110 NA Georgette Heyer Venetia (1958) * 90190 SF Edgar Rice Burroughs The Wizard of Venus and Pirate Blood * 90191 SF Edgar Rice Burroughs The Wizard of Venus (1973) * 90194 SF Edgar Rice Burroughs The Wizard of Venus and Pirate Blood * 90426 NA Lee Hoffman * 90701 NA Robert J. Hogan * 90872 SF R.A. Salvatore The Woods Out Back * 90926 SF Frank Herbert The Worlds of Frank Herbert (1971) * 90951 SF Philip K. Dick The World Jones Made (1975) * 90955 SF Jack Vance * 91010 SF Gregory Frost (1984) * 91052 SF John Carr (ed.) The Worlds of H. Beam Piper * 91055 SF Poul Anderson * 91060 SF Theodore Sturgeon * 91170 SF Marion Zimmer Bradley The World Wreckers * 91352 SF Donald A. Wollheim and Terry Carr (eds.) * 91353 SF Donald A. Wollheim and Terry Carr (eds.) * 91354 SF Donald A. Wollheim and Terry Carr (eds.) * 91355 SF Donald A. Wollheim and Terry Carr (eds.) * 91356 SF Donald A. Wollheim and Terry Carr (eds.) * 91357 SF Donald A. Wollheim and Terry Carr (eds.) * 91358 SF Donald A. Wollheim and Terry Carr (eds.) * 91359 SF * 91502 SF Robert A. Heinlein The Worlds of Robert A. Heinlein (1973) * 91581 SF Keith Laumer Worlds of the Imperium * 91640 SF Fritz Leiber The Worlds of Fritz Leiber * 91706 SF Poul Anderson World Without Stars * 91770 SF Robert E. Howard Worms of the Earth * 92551 SF Andre Norton The X Factor * 92553 SF Andre Norton The X Factor * 93900 SF Ross Rocklynne / Edmond Hamilton (March 1973) * 94200 SF Wilson Tucker The Year of the Quiet Sun (1970) * 94251 SF Andre Norton * 94254 SF Andre Norton (1979) * 95490 SF Andre Norton Zarsthor's Bane (November 1978) * 95491 SF Andre Norton Zarsthor's Bane (1981 & 1983) * 95492 SF Andre Norton Zarsthor's Bane (January 1984) * 95493 SF Andre Norton Zarsthor's Bane (August 1986) * 95501 NA Arch Whitehouse * 95941 SF Andre Norton Zarsthor's Bane * 95960 SF Andre Norton * 95961 SF Andre Norton * 95964 SF Andre Norton (1981) (en)
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  • In January 1969, Ace Books switched from a letter-series code for its books to a numeric series. The number does not indicate sequence of publication, unlike the number in the letter series codes; instead it identifies the alphabetic position of the title. It was assigned by dividing the range 00001-99999 into 26 sections, one for each letter of the alphabet, and then assigning the code depending on the first letters of the title. As can be seen from the list below, this approach was evidently not followed in every case, but it accounts for the great majority of the codes. (en)
rdfs:label
  • List of Ace titles in numeric series (en)
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