\centerline{\bf Contributors}
\medskip
\noindent
Contributors to this edition, without
whom etc., include:
{\obeylines
Tom Blyth
Dept of Mathematics
University of St Andrews
North Haugh
St Andrews KY16 9SS
|pmstb@st-and.savb|
\medskip
Sebastian Rahtz
Dept of Electronics and Computer Science
Southampton University
Southampton SO9 5NH
|spqr@soton.cm|
\medskip
Laurie Benfield
Computing Centre
University of East Anglia
Norwich NR4 7TJ
|s050@uea.cpc865|
\medskip
Barbara Beeton
American Mathematical Society
PO Box 6248
Providence
RI 02940
|bnb@xx.lcs.mit.edu|
|bb@sail.stanford.edu|
\medskip
David Brightly
Daresbury Lab
Keckwick Lane
Warrington WA4 4AD
|brightly@daresbury|
\medskip
Joan Smith, {\sc sobemap}
17 Tansa Road
London NW3 2UA
tel: 01 435 9300
\medskip
Bijan Djahansouzi
Dept of Aeronautics
Imperial College
London SW7 2BP
}