Solid fix-up novel in the Sector General series. Three puzzle stories that move along at a nice clip, ending with a wrap-up explanation a la murder mysteries. There's an introduction on the history of the series, including border-line items. The positives of the series are the ingenious alien evolutionary cycles and the lack of villains. Intelligence and compassion rule the day. The negatives are flat characters, especially with Murchison, a clearly good doctor who is repeatedly characterized by her large bosom.

If the negatives don't get you, fun old-fashioned SF. ( )

This 4th book in the Sector General series (first in the omnibus "Alien Emergencies") has Dr. Conway, his wife Murchison, his friend Dr. Prilicla and others staffing the first ambulance ship specifically designed to respond to emergencies that probably involve aliens of previously unknown species. This idea was a great way to involve Conway and the Sector General hospital with exciting adventures and challenges! ( )

Another three interesting cases solved by Conway. Sector General now has its own ambulance and Conway has been assigned.