I should like to explain that I am currently not as able to keep this site as up-to-date as I would like, because I am in hospital with a complicated break of the upper right arm, and before you ask the question, it is not at all humorous. I do not expect usual service to be resumed until I can type without considerable pain and a little faster than is possible at the moment.
P.S. Thanks to those readers who have sent their wishes for my recovery. David