This page must be the least read in the entire domain! Since first posting it in 1997 it had not drawn a single surfer comment until my son, Dr Andrew Grainger, recently (April 2010) pointed out that this webpage was entirely blank. How long it has been in this condition, I do not know - the time has obviously come to redress the matter. The original webpage has been replaced on the tabbed pages above.
Geoff Grainger, Bremen-Vegesack, April 2010.