Correspondents P-W:
P: Nigel Paton.
R: Cristiano Rafanelli; David Rinaldi.
S: Jay Gardiner-Scott; Richard Sisson, Christ's College Cambridge; Glenn Sadler.
T: Prof K Takakuwa; Fabio Tagetti.
V: Nigel A Virley.
W: Ingrid Waterhouse; Felicity Wood; Roger Wooster.