J N SiddallJAMES N. SIDDALL is Professor of Engineering at McMaster University, Hamilton, Ontario, Canada. He received the B.Sc. degree (1944) from the University of Saskatchewan, Canada, and the S.M. degree (1948) from Massachusetts Institute of Technolgy. His extensive experience encompasses over 35 years as an engineer engaged in research, project development, and design for several companies, as well as serving as a consultant to industry. Read More Read Less