GREGORY D.S. ANDERSON Research Associate, MPI-EVA/Leipzig, Germany and University of Oregon Department of Linguistics, USA PETER BAKKER Lecturer, Department of Linguistics, Arrhus University, Denmark WALTER BISANG Professor of General and Comparative Linguistics, University of Mainz, Germany CLAIRE BOWERN Assistant Professor, Department of Linguistics, Rice University, USA LYLE CAMPBELL Professor of Linguistics and Director of the Centre for American Indian Languages, University of Utah, USA TOM GÜLDEMANN Research Associate, Linguistics Section, Max Planck Institute for Evolutionary Anthropology, Leipzig and teaches at the Department of African Studies of the University of Leipzig, Germany LARS JOHANSON Professor of Turcology in the Seminar für Orientkunde, Johannes Gutenberg-Universisät, Mainz, Germany MARIA KOPTJEVSKAJA-TAMM Professor, Department of General Linguistics, Stockholm University, Sweden ROBERT MCMAHON Clinical Molecular Geneticist, Western General Hospital, Edinburgh, UK SIMON MUSGRAVE Post-Doctoral Fellow, Department of Cultures and Linguistics, Monash University, Australia THOMAS STOLZ Professor of Linguistics, University of Bremen, Germany.