Published in 1971: At first glance it might seem that the three subjects dealt with in the essays written over the last twenty years and now collected in this volume could hardly be more diverse, beginning with the growth of the firm and moving from the international petroleum industry to the Middle East generally. Oddly enough, however, these subjects are connected by the same type of historical logic that characterizes the diversification of an industrial firm: the logic in the simple principle that one thing leads to another.