how do I unsubscribe myself from this list I subscribed when I had an account at mcenpj@hw.ac.uk which is still active Niamh P. Joyce npjoyce@iol.ie +353-405-46041 fax+353-405-46479 B.A.I.Mechanical Engineering, Trinity College, Dublin M.Sc. Environmental Pollution Control Management, Heriot Watt University, Edinburgh