Title: Out of this world 1
Description: Breaking Strain - novelette by Arthur C. Clarke
No Place Like Earth - novelette by John Wyndham [as by John Beynon]
The Ruum - short story by Arthur Porges
Friday - short story by John Kippax
The Middle of the Week After Next - short story by Murray Leinster
Placet Is a Crazy Place - short story by Fredric Brown
Chemical Plant - short story by Ian Williamson
Men of the Ten Books - short story by Jack Vance (variant of The Ten Books)