Murray Leinster 
The Murray Leinster Collection 

Murray Leinster was a nom de plume of William Fitzgerald Jenkins, an American writer of science fiction and alternate history literature. He wrote and published more than 1, 500 short stories and articles, 14 movie scripts, and hundreds of radio scripts and television plays.
One of the greatest classic science fiction authors, the Murray Leinster Collection features:

IF YOU WAS A MOKLIN
THE OTHER NOW
NIGHTMARE PLANET
THE SENTIMENTALISTS
THE MACHINE THAT SAVED THE WORLD
THE WAILING ASTEROID
THIRD PLANET
CREATURES OF THE ABYSS
DOCTOR
PLANET OF DREAD
MED SHIP MAN
and
THE HATE DISEASE