Mechanisms and Dynamics of MachineryHamilton H. Mabie, Professor of Mechanical Engineering at Virginia Polytechnic Institute and State University since 1964, received his B. S degree form the University of Rochester, his M. S. degree from Cornell University, and his Ph. D. degree from Pennsylvania State University. From 1941 to 1960, Dr. Mabie was on the faculty of the Sibley School of Mechanical Engineering at Cornell University. From 1960 to 1964, he worked at Sandia Laboratory in