Hart, Charles A. Thomistic Metaphysics: An Inquiry into the Act of Existing. Englewood Cliffs, NJ: Prentice-Hall, Inc., 1959. First Edition. 
Very good cloth hardcover, former owner's small ink name stamp in several places, rest of text clean and unmarked, tight. No dj, we think as issued. Very good. Hardcover.
"One of the major objectives of this book is to make Thomistic metaphysics - an inquiry into the act of existing, the act of to be, exercised by all things to some degree - more understandable to the man of ordinary intellectual training. Therefore, the various problems of metaphysics and their solutions are presented in the simplest terms possible, with special emphasis on their significance for the contemporary mind." - Preface.
With Nihil Obstat & Imprimatur.