Hi Peter, Sophia: The GENUKI link checking facility has warned me that the email address given on the pages you contributed to GENUKI/Devon is no longer valid. Please let me know your current address, so that I can update these pages. Cheers Brian Randell -- School of Computing Science, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK EMAIL = [email protected] PHONE = +44 191 208 7923 FAX = +44 191 208 8232 URL = http://www.cs.ncl.ac.uk/people/brian.randell