The e-address of Roger Hindley has changed to
j.r.hindley@swansea.ac.uk
(Former address majrh@pyramid.swansea.ac.uk will be
working for a few weeks more, but the Pyramid machine will
probably die soon.)
Roger Hindley, Mathematics Dept., University College of Swansea,
Wales, U.K. SA2 8PP
Tel. (+) 44-792-205678 ext. 4624
Fax (+) 44-792-295843