299
- D-200 NA Edward J. Ruppelt Unidentified Flying Objects (1956)
- D-201 MY Harry Whittington Across That River / Nathaniel E. Jones Saturday Mountain (1957)
- D-202 NA Leonard Kauffman The Color Of Green (1957)
- D-203 MY William Grote Cain's Girlfriend / William L. Rohde Uneasy Lies The Head (1957)
- D-204 WE Paul Durst John Law, Keep Out! / Gordon Donalds The Desperate Donigans (1957)
- D-205 SF Donald A. Wollheim (ed.) The Earth in Peril / Lan Wright Who Speaks of Conquest? (1957)
- D-206 WE Robert Hardy Andrews Great Day In The Morning (1957)
- D-207 NA Charles Grayson Hollywood Doctor
- D-208 WE Glenn Balch Blind Man's Bullets / Barry Cord The Prodigal Gun (1957)
- D-209 MY John Jake A Night For Treason / F.L. Wallace Three Times A Victim (1957)
- D-210 NA Stephen Longstreet The Lion At Morning (1957)
- D-211 SF Philip K. Dick Eye In The Sky (1957)
- D-212 NA H. T. Elmo Hollywood Humor (1957)
- D-213 NA Peter J. Steincrohn, M.D. How To Stop Killing Yourself (1957)
- D-214 NA Martin L. Weiss Hate Alley
- D-215 SF Eric Frank Russell Three To Conquer / Robert Moore Williams Doomsday Eve (1957)
- D-216 WE Barry Cord Savage Valley / William Colt Macdonald Ridin' Through (1957)
- D-217 MY Bob McKnight Downwind / B.E. Lovell A Rage To Kill (1957)
- D-218 NA Sasha Siemel Tigrero!
- S-219 NA P.A. Hoover Backwater Woman (1957)
- D-220 WE Ray Hogan The Friendless One / John Jakes Wear A Fast Gun (1956)
- D-221 MY Gordon Ashe You've Bet Your Life / Robert Chavis Terror Package (1957)
- D-222 NA R. Frison-Roche First On The Rope (1957)
- D-223 SF Robert Silverberg The 13th Immortal / James E. Gunn This Fortress World (1957)
- D-224 NA Shelby Steger Desire In The Ozarks (1957)
- D-225 MY Kendell Foster Crossen (as M. E. Chaber) A Lonely Walk / Harry Giddings Loser By A Head (1957)
- D-226 WE Edwin Booth Showdown At Warbird / Samuel A. Peeples Doc Colt (1957)
- D-227 SF H. Beam Piper and John J. McGuire Crisis in 2140 / Cyril Judd (Cyril M. Kornbluth and Judith Merril) Gunner Cade (1957)
- D-228 NA David Howarth We Die Alone (1957)
- D-229 NA Walter Whitney Take It Out In Trade (1957)
- D-230 WE Barry Cord Boss Of Barbed Wire / Lee Floren Burn 'Em Out! (1957)
- D-231 MY Dudley Dean Macgaughy (as Owen Dudle) Murder For Charity / Edward S. Aarons (as Edward Ronn) Point Of Peril (1957)
- D-232 NA Willard Manies The Fixers (1957)
- D-233 SF Rex Gordon First On Mars
- D-234 NA Robert L. Scott Look Of The Eagle (1957)
- D-235 MY Jack Webb (as John Farr) The Lady And The Snake / Louis Trimble Nothing To Lose But My Life (1957)
- D-236 WE Edwin Booth Jinx Rider / Ray Hogan Walk A Lonely Trail (1957)
- D-237 SF Robert Silverberg Master of Life and Death / James White The Secret Visitors (1957)
- D-238 NA Clellon Holmes Go (1957)
- D-239 NA G. Harry Stine Earth Satellite And The Race For Space Superiority (1957)
- D-240 WE Wayne C. Lee Broken Wheel Ranch / Tom West Torture Trail (1957)
- D-241 MY Harry Whittington One Deadly Dawn / Wilson Tucker The Hired Target (1957)
- D-242 SF A. E. van Vogt Empire of the Atom / Frank Belknap Long Space Station 1 (1957)
- D-243 NA Michael Wells The Roving Eye (1957)
- D-244 NA Terence Robinson Night Raider Of The Atlantic: The Saga Of The U-99 (1957)
- D-245 SF Jules Verne Off On A Comet (1957)
- D-246 NA John Harriman The Magnate (1957)
- D-247 MY Ken Lewis Look Out Behind You / John Creighton Not So Evil As Eve (1957)
- D-248 WE Dwight Bennett Newton (as Clement Hardin) Longhorn Law / Ray Hogan Cross Me In Gunsmoke (1957)
- D-249 SF Philip K. Dick The Cosmic Puppets / Andre Norton (as Andrew North) Sargasso of Space (1957)
- D-250 NA Arthur Steuer The Terrible Swift Sword (1957)
- D-251 NA Hamilton Cochran Windward Passage (1957)
- D-252 WE John Callahan The Rawhide Breed / Rod Patterson Prairie Terror (1957)
- D-253 MY Bruce Cassiday The Buried Motive / Prentice Winchell (as Spencer Dean) Marked Down For Murder (1957)
- D-254 NA Marcos Spinelli The Lash Of Desire (1957)
- D-255 SF Kenneth Bulmer City Under the Sea / Poul Anderson Star Ways (1957)
- S-256 NA Karl Ludwig Oritz The General (1957)
- D-257 NA Louis Malley Tiger In The Streets (1957)
- D-258 NA Sławomir Rawicz The Long Walk (1957)
- D-259 MY Michael Avallone The Case Of The Violent Virgin / The Case Of The Bouncing Betty (1957)
- D-260 WE Ray Hogan and Matt Slade Land Of The Strangers / Lee Floren The Saddle Wolves (1957)
- D-261 SF Philip K. Dick The Variable Man And Other Stories (1957)
- S-262 NA Leland Jamieson Attack! (1957)
- S-263 NA Virginia M. Harrison (as Wilene Shaw) See How They Run (1957)
- D-264 WE Barry Cord Cain Basin / Lee E. Wells Brother Outlaw (1958)
- D-265 MY Robert Bloch Shooting Star / Robert Bloch Terror In The Night (And Other Stories)
- D-266 SF E. C. Tubb The Mechanical Monarch / Charles L. Fontenay Twice Upon A Time (1958)
- D-267 NA Jim Bosworth Speed Demon (1958)
- D-268 NA Brant House (ed.) Lincoln's Wit, Humorous Tales And Anecdotes By And About Our 16th President (1958)
- D-269 NA Michael Powell Death in the South Atlantic
- D-270 NA Bud Clifton D For Delinquent
- D-271 NA Cliff Howe Lovers And Libertines (1958)
- D-272 WE Lee Floren Riders In The Night / William Hopson Backlash At Cajon Pass
- D-273 MY Ernest Jason Fredericks Shakedown Hotel / John Roscoe and Michael Roscoe (as Mike Roscoe) The Midnight Eye (1958)
- D-274 SF David Mcilwain (As Charles Eric Maine) World Without Men (1958)
- S-275 NA Brant House (ed.) Cartoon Annual #3- The Cream Of The Year's Best Cartoons (1958)
- D-276 WE Barry Cord The Gunsmoke Trail / Tom West Lead In His Fists (1958)
- D-277 SF Murray Leinster City on The Moon / Donald A. Wollheim (ed.) Men on The Moon (1958)
- D-278 NA Donald Barr Chidsey This Bright Sword (1957)
- D-279 MY J. Harvey Bond Bye Bye, Baby! / Bob McKnight Murder Mutuel
- D-280 NA James P.S. Devereux The Story Of Wake Island
- D-281 NA Norman Vincent Peale (ed.) Guideposts (1958)
- D-282 NA Cliff Howe Scoundrels, Fiends, and Human Monsters (1958)
- D-283 SF Clifford D. Simak City (1958)
- D-284 WE Barry Cord The Guns Of Hammer / Edwin Booth The Man Who Killed Tex (1958)
- D-285 MY Bruce Cassiday Brass Shroud / Joseph Linklater Odd Woman Out (1958)
- D-286 SF Robert Silverberg Invaders From Earth / Donald A. Wollheim (as David Grinnell) Across Time (1958)
- D-287 NA Holland M. Smith Coral And Brass (1958)
- D-288 WE Edwin Booth Trail To Tomahawk / John Callhan Land Beyond The Law
- D-289 MY Alan Payne This'll Slay You / John Hawkins and Ward Hawkins Violent City
- D-290 NA P. A. Hoover A Woman Called Trouble (1958)
- D-291 SF Robert Silverberg (as Calvin M. Knox) Lest We forget Thee, Earth / Raymond Z. Gallun People Minus X (1958)
- D-292 NA Booth Mooney The Insiders (1958)
- D-293 NA Vaino Linna The Unknown Soldier (1954)
- D-294 WE John H. Latham Bad Bunch Of The Brasada / Walt Coburn Beyond The Wide Missouri (1958)
- D-295 SF Jack Vance Big Planet / The Slaves of The Klau (1958)
- D-296 NA John Clagett Run The River Gauntlet (1958)
- D-297 MY Peter Rabe The Cut Of The Whip / Robert Kelston Kill One, Kill Two (1958)
- D-298 WE Paul Evans Thunder Creek Range / William Vance Outlaws Welcome! (1958)
- D-299 SF Andre Norton Star Born / H. Beam Piper and John J. McGuire A Planet For Texans (1958)
Read more about this topic: List Of Ace Titles In First DGS Series, 200