How did a very rich but not very bright college student manage to ace the notoriously difficult chemistry class needed to qualify him to start for a Ph.D.?

This is among the best Black Widower stories—the problem is neat and the solution painfully obvious (once Henry points it out). And, of course, it provides Asimov a chance to vent some frustration hanging over from his own days teaching at a medical school whose students generally felt that, as a mere Ph.D., he wasn’t a real doctor.