Howard Maskill is a former Senior Lecturer in the School of Natural Sciences, University of Newcastle-upon-Tyne, UK, and most recently Visiting Professor, University of Santiago de Compostela, Spain.Contributors to the book:Dr Fawaz Aldabbagh Professor John H. Atherton Dr T. William Bentley Professor W Russ Bowman Dr Mois_s Canle-L#243;pez Dr Ulrich Fischer Professor Ole Hammerich Professor Konrad Hungerb8hler Professor Guy C. Lloyd-Jones Dr Howard Maskill Dr Juan Arturo Santaballa-L#243;pez Professor Peter R. Schreiner Dr John M. D. Storey Dr C. Ian F. Watt