UNIVERSITY OF SOUTHAMPTON. Readers: Cyrus Cooper, scientific staff, MRC environmental epidemiology unit; Fausto Ianotti, senior lecturer, clinical neurological sciences; Paul Jackson, senior lecturer, medical physics; David Singerman, senior lecturer, mathematical studies; Timothy Wheeler, senior lecturer, obstetrics and gynaecology; Martin Glennie, senior lecturer, immunochemistry/ Tenovus; Roger Ingham, senior lecturer, psychology; Edmund Sonuga-Barke, lecturer, psychology; Freda Stevenson, visiting senior lecturer, Wessex Immunology Services.