Scotha

Planet Stories, January 1951, contained:

"Witch of the Demon Seas" by A.A. Craig (Poul Anderson);
"Tiger by the Tail" by Poul Anderson.

The cover (see image) advertises the first of these two works, then adds "Also POUL ANDERSON"

In the revised text of "Tiger by the Tail," the barbarian, but newly industrialized, terrestroid planet, Scotha, sounds quaint:

modern industry, moved into space, has not been allowed to pollute the planetary environment;

there is no poisoned soil or polluted air or water;

there are no mines, highways or megalopolises;

population has been controlled;

there is extra-planetary colonization in artificial environments and in other systems;

there are three billion Scothani, two thirds off Scotha;

three small moons make the seas turbulent;

observing through instruments while approaching from space, Flandry sees -

green, in different shades from Terra;
broad forests;
rich plains, cultivated or grazed;
picturesque old villages;
steep-walled castles;
gleaming rivers and snow-peaks;
skies thronged with wings;
occasionally glimpsed sleek industrial buildings;
new towers in cities;
air traffic;
the ancient many-bannered stronghold of the Frithian kings on the peak of a mountain where a city now sprawls down the slopes and for kilometers beyond.