GEORGE A. OLAH, PhD, was awarded the 1994 Nobel Prize in Chemistry for his work on carbocation chemistry. Professor Olah, holder of the Loker Chair in Organic Chemistry, also is Director of the Loker Hydrocarbon Research Institute at the University of Southern California.

KENNETH K. LAALI, PhD, is Professor of Chemistry at Kent State University in Ohio. His research interests are in onium ions and carbocation chemistry. QI WANG, PhD, is Research Chemist at the Occidental Chemical Corporation in Buffalo, New York. His research interests are in superacid and Friedel-Crafts chemistry.

G. K. SURYA PRAKASH, PhD, is Professor of Chemistry at the University of Southern California, and holds the Olah Chair in Hydrocarbon Chemistry at the Loker Hydrocarbon Research Institute. His research interests are in hydrocarbon, carbocation, and synthetic organic chemistry.