The first test. Please ignore Dr Henry Rzepa, Department of Chemistry, Imperial College, LONDON SW7 2AY; rzepa@ic.ac.uk via Eudora Pro 2.1.3; Tel (44) 171 594 5774; Fax: (44) 171 594 5804. World-Wide Web URL: http://www.ch.ic.ac.uk/rzepa/