This volume contains three of the most important hard science fiction novels of Hal Clement—Needle, Iceworld, and Close to Critical.

This volume contains seventeen of Hal Clement's stories. They range from near-future earth to the distant Magellanic Cloud. Their protagonists are tachyonic aliens and teen-aged humans, retired explorers and beings so vast and slow that they don't even notice mankind, criminals, pirates and teachers. Hal Clement's stories, like his novels, show that the natural world contains wonders and possibilities which hardly require any additional invention-yet he supplies it, creating stories which turn on scientific puzzles or which lead us to look at old notions in a new light. Cold front Proof Raindrop Longline Planetfall Sun spot The mechanic Attitude Halo Impediment Technical error Bulge Probability Zero: avenue of escape Status symbol The logical life Stuck with it Uncommon sense

This volume contains the complete Mesklin writings of Hal Clement. Mission of gravity Under Lecture demonstration Star light Whirligig world Addendum to Whirligig world I discover Hal Clement / by Anthony R. Lewis The Perfect hard SF novel / by Mark L. Olson