MAYA JADE: SOURCE LOCATION AND ANALYSIS11This research was carried out while Hammond was Leverhulme Research Fellow in New Worid Archaeology at the Centre of Latin American Studies, Cambridge University, and Fellow of Fitzwilliam College, Cambridge, and Gazard was a member of King's College, Cambridge and the Cambridge University Statistical Laboratory. Hazelden's participation in the project was financed by a grant from the Wenner-Gren Foundation for Anthropological Research Inc. and Gazard's by a grant from Mrs. Gail Hollenbeck. Costs of irradiation were met by the Science Research Council. The authors express their individual and collective gratitude to these supporters and also to Jennifer M. Braithwaite, Dip. A.D. (Graphics), who drew the figures, and David L. Clarke, for good advice.