Brian W. Aldiss - Fourth factor

Odd story about a society run by doctors...

H. Philip Stratford - Agent provocateur

A crooked business man selling planets makes one more play: weak twist.

E.R.James - Friction

A human explorer and a humanoid alien join forces when an eruption threatens an important mine...Plodding

James Inglis - Threshold

An early man decides to roam alone and learn but helping a tribe fight off an attack gives him loftier goals...

Wisdom of the gods [part 3 of 4]

Things get worse. Colborne decides that he must get away as he is worried that someone will realise he is not telling all he knows so he escapes into the woods with Sallly. Unfortunately they are captured by a group of crazy women who think they are re-incarnations of the alien race who made
the Encyclopaedia. They torture Sally to pressure Colborne to reveal his knowledge... ( )