ACROSS THE SEA OF STARS (584 pp.) Arthur C. ClarkeHarcourt, Brace ($3.95).
A moon-based songwriter would have his troubles; an obvious rhyme for earth is girth, and in the radiance of earthlight, a moon-maiden's face would shine bluish green. But if science fiction is somewhat short on romance, it does offer today's readers the kind of adventurous, he-man escape from gravity once found in turn-of-the-century western yarnsa commodity not to be dismissed in this day of beatniks and Angry Young Men.
Pax Stellarum. Author Clarke has all the qualifications to keep the 18 short stories and two short novels in this omnibus in...