there are other, less obvious examples of industries that have been and are now endangering their futures by improperly defining their purposes. I shall discuss some of them in detail later and analyze the kind of policies that lead to trouble. Right now, it may help to to show what a thoroughly customer-oriented management can do to keep a growth industry growing, even after the obvious opportunities have been exhausted, and here there are two examples that have been around for a long time. They are nylon and glass-specifically, EI company and corning glass works.