Doctors: The Paris Patrol

Paris has plenty of doctors—during daylight hours. From 8 in the evening until 8 the next morning, the doctors insist on their privacy; medical help becomes harder to find than a polite cab driver. To Parisians the scarcity has sometimes meant long hours of pain, or even death.

It is the kind of situation that the medical profession might be expected to remedy, and an enterprising young French doctor finally decided to do just that. Impressed when he got near-instant service one night from a radio-dispatched plumber, he wondered why pipes should be better cared for than patients. His answer:...