Superb, engrossing short story by one of the master writers of his day. Wallace's tale of equitorial Africa and the white man who keeps order among the tribes is fascinating from start to finish. Memorable.
Mildly entertaining short story about the world's only green diamond and its disappearance during a dinner party. Good as a time killer, but not really memorable in any way.
Harmless, predictable short story about a man who is having hallucinations -- or so the government thinks. Very quick read, worth it if you just need to slay a little time.
Glib but relatively interesting story set in the flying branch of the armed forces of the future, and efforts to solve a life-threatening technical problem.