Ln all, 140 cyclotrons and other high-energy accelerators are reported. Verified data are provided for 108 of these; amount of data available for the remainder varies. Questionnaires were sent to all laboratories for which addresses were available. Data supplied on the questionnaires were edited only enough to provide some uniformity in terminology. Where the questionnaires were not returned by publication time, data accumulated from journals, press releases, and personal communications are given. (W.D.M.)