Jeffrey Thomas

I've polished up stories for their reprinted appearances. I guess there's always something to be changed or improved, but one could get carried away and work on one story indefinitely. I'm too restless for that, too eager to begin the next one.

The smaller the planets are, they are, other things being equal, of so much the greater density; for so the powers of gravity on their several surfaces come nearer to equality. They are likewise, other things being equal, of the greater density, as they are nearer to the sun.