| Fire In the Heavens by George O. Smith
1958, Cover by Gray Morrow | |
| | Lost In Space by George O. Smith
1959, Cover by Ed Emshwiller | |
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| Troubled Star by George O. Smith
1957, Cover by Ric Binkley | |
| | The Forgotten Planet by George Henry Smith
1965, Cover by Gray Morrow | |
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| Druid´s World by George Henry Smith
1967, Cover by Michael M. Peters | |
| | The Perfect Planet by Evelyn E. Smith
1962, Cover by Ed Emshwiller | |
|
| Collision Course by Robert Silverberg
1961, Cover by Ed Emshwiller | |
| | Doomed Planet by Lee Sheldon (Wayne Cyril Lee)
1967, Cover by Gray Morrow | |
|
| Immortality Delivered by Robert Sheckley
1958, Cover by Ric Binkley | |
| | Wasp by Eric Frank Russel
1957, Cover by Ric Binkley | |
|
| Three To Conquer by Eric Frank Russel
1956, Cover by Ed Emshwiller | |
| | Invaders From Rigel by Fletcher Pratt
1960, Cover by Ed Emshwiller | |
|
| Alien Planet by Fletcher Pratt
1962, Cover by Ed Emshwiller | |
| | The Involontary Immortals by Rog Phillips (R. P. Graham)
1959 Cover; Emsh... | |
|
| Aliens From Space by David Osborne (Robert Silverberg)
1958, Cover: Ric Bi... | |
| | Invisible Barriers by David Osborne (Robert Silverberg)
1958 Cover: Ric Bi... | |
|
| Armageddon 2419 AD by Francis Philip Nowlan
1962, Cover by Ed Emshwiller | |
| | Troyana by Colonel S. P. Meek
1961, Cover by Ed Emshwiller | |
|
| The Drums of Tapajos by Colonel S. P. Meek
1961, Cover by Ed Emshwiller | |
| | He Owned the World by C. E. Maine ( D. McIlwain)
1960, Cover by Ed Emshwiller | |
|
| Spaceways Satellite by C. E. Maine (D. McIlwaine)
1958, Cover by Ric Binkley | |
| | The Hothouse World by Fred MacIsaac
1965, Cover by Gray Morrow | |
|
| The World Within by Adam Lukens (Diane Detzer)
1962, Cover: Ed Emshwiller | |
| | Sons of the Wolf by Adam Lukens (Diane Detzer )
1961, Cover by Ed Emshwiller | |
|
| Conquest of Life by Adam Lukens (Diane Detzer)
1960, Cover by Ed Emshwiller | |
| | The Sea People by Adam Lukens (Diane Detzer)
1959, Cover by Ed Emshwiller | |
|
| The Glass Cage by Adam Lukens (Diane Detzer)
1962, Cover by Ed Emshwiller | |
| | Eevalu by Adam Lukens (Diane Detzer de Reyna)
1963, Cover by Ed Emshwiller | |
|
| Alien World by Adam Lukens (Diane Detzer de Reyna)
1963, Cover by Ed Emshw... | |
| | Believer´s World by Robert Lowndes
1961, Cover by Ed Emshwiller | |
|
| Mission to a Star by Frank Belknap Long
1964, Cover by Ed Emshwiller | |
| | Three Steps Spaceward by Frank Belknap Long
1963, Cover by Ed Emshwiller | |
|
| The Martian Visitors by Frank Belknap Long
1964, Cover by Ed Emshwiller | |
| | The Eternal Man by C. R. Long
1964, Cover by Ed Emshwiller | |
|
| The Infinite Brain by Charles R. Long
1957, Cover by Ed Emshwiller | |
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