ROBERT O. PARMLEY, P.E., CMfgE, CSI, is co-founder, President and Principal Consulting Engineer of Morgan & Parmley, Ltd., Professional Consulting Engineers, Ladysmith, Wisconsin. He is also a member of the National Society of Professional Engineers, the American Society of Civil Engineers, the American Society of Mechanical Engineers, the Construction Specifications Institute, the American Design Drafting Association, the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, and the Society of Manufacturing Engineers, and is listed in the AAES Who's Who in Engineering.

Mr. Parmley holds a BSME and an MSCE from Columbia Pacific University and is a registered professional engineer in Wisconsin, California, and Canada. He is also a certified manufacturing engineer under SME's national certification program and a certified wastewater plant operator in the State of Wisconsin.

In a career covering four decades, Mr. Parmley has worked on the design and construction supervision of a wide variety of structures, systems, and machines--from dams and bridges to municipal sewage treatment facilities and public water projects. The author of over 40 technical articles published in leading professional journals, he is also the Editor-in-Chief of the ILLUSTRATED SOURCEBOOK OF MECHANICAL COMPONENTS, the HVAC FIELD MANUAL, the HYDRAULICS FIELD MANUAL, Second Edition, the HVAC DESIGN DATA SOURCEBOOK, the MECHANICAL COMPONENTS HANDBOOK, and the STANDARD HANDBOOK OF FASTENING & JOINING, Third Edition, all published by McGraw-Hill.