Fred McLafferty, professor emeritus at Cornell University, received the 2003 American Society for Mass Spectrometry Award for a Distinguished Contribution in Mass Spectrometry at this week’s annual ASMS conference in Montreal (see p. 6). The award honors his contribution to the mechanistic definition of the 6-membered ring hydrogen rearrangement in the gas-phase ion chemistry of carbonyl compounds, known as the “McLafferty Rearrangement.”