Abstract
Henry Mehlberg, an eminent philosopher educated in the best traditions of Polish logic, till his death professor at the University of Chicago, was for a long time interested in an interdisciplinary study of time, especially in its physical and philosophical aspects. "Mehlberg's command of the most recent relevant developments in theoretical physics was outstanding even within the relatively small circle of philosophers working in the foundations of physics, most of whom are better known than he". These are some of the reasons that compel us to go through two volumes of Mehlberg's studies with a special interest.