The Hounds of Tindalos
Frank Belknap Long
Cthulhu Mythos (1)
Flaw
John D. MacDonald
Defense Mechanism
Katherine MacLean
The Washer of the Ford
Fiona Macleod
Edison's Conquest of Mars
Garrett P. Serviss
The Living Galaxy
Laurence Manning
The Man Who Awoke
The Voyage of the Asteroid
The City of the Living Dead
Laurence Manning & Fletcher Pratt
Manic Perverse
Winston K. Marks
That Only a Mother
Judith Merril
Spawn
P. Schuyler Miller
A Matter of Eclipses
P. Schuyler Miller & Emily Pohl-Weary
Probability Zero (1)
Lud-in-the-Mist
Hope Mirrlees
Black God's Shadow
C. L. Moore
Jirel of Joiry (1)
Daemon
Doorway Into Time
Hellsgarde
Jirel Meets Magic
Black God's Kiss