"Set on the largest interstellar medical installation in the galaxy, replete with engaging human-and-alien interaction and intricate puzzle plots, James White's Sector General novels have been a favorite with the SF audience for more than three decades. Now White returns with another entertaining adventure in deep-space medicine. The empathic Dr. Prilicla, a veteran of Sector General for years, is put in command of an expedition answering three distress beacons. What he finds is two hitherto-unknown intelligent species - one of which has nearly wiped out the other - and a revelation of a botched first contact, along with a rare opportunity to set matters right - Assuming , as always, that he can make an accurate diagnosis."
005583 
Price: 11.50 USD

The empty oil tanker 'Gulf Trader' was nearing the Irish coast when she was torpedoed and sunk by a German U-Boat. Miraculously, a handful of people survived as it floated not far below the surface of the Atlantic:
"Somehow they had to find a way . . . Doc Radford, the Exec, Wallis, and First Officer Dickson, together with two badly injured and hysterical nurses. They were stuck.
"In the pitch dark, bleak cold of a hull equipped with oxygen tanks and stored food. And nothing else. Under several fathoms of water. Somehow they had to find a way to stay sane long enough to make a new home.

"And billions of miles out in space there were aliens - water breathers whose own world was gone forever in gusts of titanic heat. They too had to find a way - a way to survive for generations, long enough to find a new home . . .
"Aliens and humans alike had the same problem. This is how they met it. "
007855 
Price: 5.50 USD

"Perhaps mankind's time space is as limited as his living space. . . . Jim Carson was Security Chief at the Hart-Ewing plant-and he was very good at his job. That is, he accomplished what he had to unobtrusively. The nature of the job made Carson cautious and meticulously thorough. What he brought to his profession was a most thoughtful sensitivity. So when Carson became uneasy he knew something was really wrong. And methodically, as usual, he started going over the multitude of details and impressions he had picked up day-by-day for weeks back. He came up with a most astonishingly result."
004442 
Price: 3.95 USD