List of Ace titles in M series

Ace Books published its M series of books from 1964 to 1966, at a price of 45 cents.

*M-100 "WE" John Callahan "A Man Named Raglan" / Barry Cord "Gun Junction" (1964)
*M-101 "SF" Leigh Brackett "The Secret of Sinharat" / "People of the Talisman" (1964)
*M-102 "WE" Ray Hogan "Hoodoo Guns" / Rod Patterson "Trouble At Hangdog Flats" (1964)
*M-103 "SF" Fred Saberhagen "The Golden People" / Lan Wright "Exile From Xanadu" (1964)
*M-104 "WE" Tom West "Sidewinder Showdown" / Dan J. Stevens "Land Beyond The Law"
*M-105 "SF" Margaret St. Clair "Message From the Eocene" / "Three Worlds of Futury" (1964)
*M-106 "WE" Reese Sullivan "The Blind Trail" / Tim Kelly "Ride Of Fury" (1964)
*M-107 "SF" A. Bertram Chandler "The Coils of Time" / "Into The Alternate Universe" (1964)
*M-108 "WE" Rod Patterson "Gunfire Heritage" / Wayne C. Lee "Warpath West" (1965)
*M-109 "SF" G.C. Edmondson "Stranger Than You Think" / "The Ship That Sailed the Time Stream" (1965)
*M-110 "WE" Tom West "Bushwack Brand" / Merle Constiner "Wolf On Horseback" (1965)
*M-111 "SF" Edmond Hamilton "Fugitive of the Stars" / Kenneth Bulmer "Land Beyond the Map" (1965)
*M-112 "WE" Nelson Nye "Rogue's Rendezvous" / [Gun Feud At Tiedown"
*M-113 "SF" Damon Knight "Off Center" / "The Rithian Terror" (1965)
*M-114 "WE" Brian Garfield (as Frank Wynne) "Lynch Law Canyon" / Stephen Payne "Stampede On Farway Pass"
*M-115 "SF" John Brunner "The Repairmen of Cyclops" / "Enigma From Tantalus" (1965)
*M-116 "SF" Robert P. Mills (ed.) "The Best From Fantasy And Science Fiction, Tenth Series"
*M-117 "SF" Bruce W. Ronald "Our Man in Space" / Jack Sharkey "Ultimatum in 2050 A.D." (1965)
*M-118 "WE" Merle Constiner "Guns At Q Cross" / Tom West "The Toughest Town In The Territory" (1965)
*M-119 "SF" Jules Verne "Journey to the Center of the Earth" (1965)
*M-120 "WE" Nelson Nye "Ambush At Yuma's Chimney" / John Callahan "Ride The Wild Land" (1965)
*M-121 "SF" Emil Petaja "Alpha Yes, Terra No!" / Samuel R. Delany "The Ballad of Beta-2" (1965)
*M-122 "WE" Roger G. Spellman "Tall For A Texan" / William Vance "Outlaw Brand" (1965)
*M-123 "SF" John Brunner "The Altar on Asconel" / Ted White "Android Avenger" (1965)
*M-124 "WE" Stephen Payne "Trail Of The Vanishing Ranchers" / Tom West "Battle At Rattlesnake Pass" (1965)
*M-125 "SF" Jack Vance "Monsters in Orbit" / "The World Between and Other Stories" (1965)
*M-126 "WE" Harry Whittington "Valley Of Savage Men" / Ben Elliott "Brother Badman" (1965)
*M-127 "SF" John Rackham "We, The Venusians" / Fred Saberhagen "The Water of Thought" (1965)
*M-128 "WE" Brian Garfield (as Brian Wynne) "The Night It Rained Bullets" / Reese Sullivan "Nemesis Of Circle A" (1965)
*M-129 "SF" A. Bertram Chandler "The Alternate Martians" / A. Bertram Chandler "Empress of Outer Space" (1965)
*M-130 "WE" John Callahan "Half-Injun, Half-Wildcat" / Clement Hardin "Outcast Of Ute Bend" (1965)
*M-131 "SF" Kenneth Bulmer "Behold The Stars" / Mack Reynolds "Planetary Agent X" (1965)
*M-132 "SF" Robert W. Chambers "The King in Yellow" (1965)
*M-133 "SF" A. Bertram Chandler "Space Mercenaries" / Emil Petaja"The Caves of Mars" (1965)
*M-134 "WE" Tom West "Lost Loot Of Kittycat Ranch" / Lin Searles "Saddle The Wind" (1965)
*M-135 "SF" Philip E. High "The Mad Metropolis" / Murray Leinster "Space Captain" (1966)
*M-136 "WE" Ray Hogan "Panhandle Pistolero" / Nelson Nye "The Marshall Of Pioche" (1966)
*M-137 "SF" Robert P. Mills (ed.) " The Best From Fantasy And Science Fiction, Eleventh Series" (1966)
*M-138 "WE" Brian Garfield (as Frank Wynne) "Call Me Hazard" / Dean Owens "The Rincon Trap" (1966)
*M-139 "SF" Samuel R. Delany "Empire Star" / Tom Purdom "The Tree Lord of Imeton" (1966)
*M-140 "WE" Reese Sullivan "Deadly Like A .45" / Barry Cord "Last Stage To Gomorrah" (1966)
*M-141 "SF" Jack Vance "The Brains of Earth" / "The Many Worlds of Magnus Ridolph" (1966)
*M-142 "SF" H.F. Heard "Doppelgangers" (1966)
*M-143 "SF" John W. Campbell "Islands of Space" (1965)
*M-144 "WE" Ernest Haycox "Trigger Trio" (1966)
*M-145 "NA" Elizabeth Kellier "The Patient at Tonesburry Manor" (1966)
*M-146 "NA" anonymous (ed.) "Cracked Again" (1966)
*M-147 "SF" Andre Norton "The Stars Are Ours!"
*M-148 "SF" Andre Norton "Star Born" (1966)
*M-149 "SF" James Holbrook Vance (as Jack Vance) "The Eyes of the Overworld" (1966)
*M-150 "SF" Andre Norton "The Defiant Agents"
*M-151 "SF" Andre Norton "The Last Planet"
*M-152 "SF" H. Warner Munn "King Of The World's Edge" (1966)
*M-153 "SF" A. E. van Vogt "The Weapon Makers" (1966)
*M-154 "SF" John W. Campbell "Invaders from the Infinite" (1966)
*M-155 "SF" Roger Zelazny "Four For Tomorrow" (1966)
*M-156 "SF" Andre Norton "Key Out Of Time" (1966)
*M-157 "SF" Andre Norton "Star Gate" (1966)
*M-158 "WE" Brian Garfield (as Brian Wynne) "The Proud Riders" (1966)
*M-159 "NA" Sylvia Lloyd "Down East Nurse" (1965)
*M-160 "WE" Nelson Nye "Trail Of Lost Skulls" (C. 1)
*M-161 "NA" Sharon Heath "Nurse at Moorcroft Manor" (1965)
*M-162 "SF" Donald A. Wollheim (as David Grinnell) "Edge Of Time" (1966)
*M-163 "NA" Ray Hogan "Wolver"
*M-164 "NA" Suzanne Roberts "Cross Country Nurse"
*M-165 "SF" Keith Laumer "Worlds Of The Imperium" (1966)